LIST OF PUBLICATIONS

Riitta Julkunen-Tiitto (WoSci: H-index 54, 272 peer-reviewed articles, 12 refereed book chapters, sum of the times cited more than 9 729 times)

Eronen, L, Julkunen, R. & Saarelainen, R. (1979): MCPA residues in developing forest ecosystem after aerial spraying. Bull. Environ. Contam. Toxicol. 21: 791-79

Julkunen-Tiitto, R. (1985): Phenolic Constituents in the Leaves of Northern Willows: Methods for the analysis of Certain Phenolics. J. Agr. Food. Chem. 33: 213-217

Julkunen-Tiitto, R. (1985): Chemotaxonomical Screening of Phenolic Glycosides in Northern Willow Twigs by Capillary Gas Chromatography. J. Chromatog. 324: 129 139

Tahvanainen, J., Helle, E., Julkunen-Tiitto, R. & Lavola, A. (1985): Phenolic compounds of willow bark as deterrents against feeding by mountain hare. Oecologia 65: 319-323.

Tahvanainen, J., Julkunen-Tiitto, R. & Kettunen, J. (1985): Phenolic glycosides govern the food selection pattern of willow feeding leaf beetles. Oecologia 67: 52-56.

Julkunen-Tiitto, R. (1986): A chemotaxonomic survey of phenolics in leaves of northern Salicaceae species. Phytochem. 25: 663-667.

Meier, B., Julkunen-Tiitto, R., Tahvanainen, J. & Sticher, O. (1988): Comparative HPLC and GLC determination of phenolic glucosides in Salicaceae species. J. Chromatogr. 442:175-186.

Julkunen-Tiitto, R. & Tahvanainen, J. (1988): The effect of the sample preparation method on extractable phenolics of Salicaceae species. Planta Med. 55: 55-58

Julkunen-Tiitto, R., Kirsi, M. & Rimpiläinen, T. (1988): Methods of the analysis and the aroma composition of some species of herbal teas. Lebens. Wiss. Techn. 21: 36-40.

Price, P. W., Waring, G. L., Julkunen-Tiitto, R., Tahvanainen, J., Mooney, H. A. & Craig, T. P. (1989): The carbon/nutrient balance hypothesis in within species phytochemical variation of Salix lasiolepis. J. Chem. Ecol. 15: 117-131.

Bryant, J. B., Tahvanainen, J., Salkinoja, M., Julkunen-Tiitto, R., Reichardt, P. & Green, T. (1989): Biogeographic evidence for the evolution of chemical defence against mammal browsing by boreal birch and willow. Am. Nat. 143: 20-34.

Julkunen-Tiitto, R. (1989): Phenolic compounds of the genus Salix: A chemotaxonomical survey of further Finnish species. Phytochem. 28: 2115-2125.

Tahvanainen, J., Julkunen-Tiitto, R., Rousi, M. & Reichardt, P.B. (1991): Chemical determinants of resistance in winter-dormant seedlings of silver birch to the browsing by the mountain hare. Chemoecology 2: 49-54.

Vainiotalo, P., Julkunen-Tiitto, R., Juntheikki, M.-R., Reichardt, P. & Auriola, S. (1991): Chemical characteristics of herbivore defenses in Betula pendula winter dormant young stems. J. Chromatogr. 547: 367-376.

Julkunen-Tiitto, R. & Meier, B. (1992): Variation in growth and secondary phenolics among field-cultivated clones of Salix myrsinifolia. Planta Medica 58: 77-80.

Julkunen-Tiitto, R & Meier, B. (1992): Enzymatic decomposition of salicin and its derivatives obtained from Salicaceae species. J. Nat. Prod. 55: 1204-1212.

Julkunen-Tiitto, R. & Gebhardt, K. (1992): Further studies on drying willow (Salix) twigs: The effect of low drying temperature on labile phenolics. Planta Medica 58: 385-386.

Julkunen-Tiitto, R. (1992): Analyze und Vertailung Phenolischer Glycoside (Salicinderivate) in Weiden (Salicaceae). Die Holzzucht 46:2-5.

Gebhardt, K. & Julkunen-Tiitto, R. (1992): Ernte und Nacherntehandlung von Weidenrinde. Die Holzzucht 46:18-20.

Roininen, H., Vuorinen, J., Tahvanainen, J. & Julkunen-Tiitto, R. (1993): Host preference and allozyme differentation in the shoot-galling sawfly, Euura atra. Evolution 47: 300-308.

Julkunen-Tiitto, R., Tahvanainen, J. & Silvola, J. (1993): Increased CO2 and nutrient status changes affect phytomass and the production of plant defensive secondary chemicals in Salix myrsinifolia (Salisb.). Oecologia 95: 495-498.

Lavola, A., Julkunen-Tiitto, R. & Pääkkönen, E. (1994): Does ozone stress change the primary and secondary metabolism of birch (Betula pendula L.). New Phytol.126: 637-642.

Lavola, A. & Julkunen-Tiitto, R. (1994): The effects of elevated carbon dioxide and fertilization on primary and secondary metabolism in birch, Betula pendula. Oecologia 99: 315-321.

Julkunen-Tiitto, R., Hakulinen, J. & Meier, B. (1994): The response of growth and secondary metabolism to Melampsora rusts in field cultivated willow (Salix) clones. Acta Horticulturae 381: 679-682.

Kolehmainen, J., Roininen, H, Julkunen-Tiitto, R. & Tahvanainen, J. (1994): Importance of phenolic glucosides in host selection of the shoot galling sawfly, Euura amerinae, on Salix pentandra. J. Chem. Ecol. 20: 2455-246.

Julkunen-Tiitto, Lavola, A. R. & Kainulainen, P. (1995): Does SO2 fumigation change the chemical defense of woody plants: The effect of short-term fumigation on the metabolism of deciduous Salix myrsinifolia plants. Water, Soil and Air Poll. 82: 1-10.

Julkunen-Tiitto, R., Bryant, J., Roininen, H. & Kuropat, P. (1995): Slight tissue wounding fails to induce consistent chemical defense in three willow (Salix spp.) clones. Oecologia 101: 467-471.

Hakulinen, J., Julkunen-Tiitto, R. & Tahvanainen, J. (1995): Does nitrogen fertilization have an impact on the trade-off between willow growth and defensive secondary metabolism? Trees 9: 235-240.

Bryant, J., Julkunen-Tiitto, R. (1995): Ontogenetic development of chemical defense by seedling resin birch: Energy cost of defense production. J. Chem. Ecol. 21:883-896.

Kolehmainen, J., Julkunen-Tiitto, R., Roininen, H. & Tahvanainen, J. (1995): Phenolic glucosides as feeding cues for willow-feeding beetles. Entomol. Exp. Appl. 74: 235-243.

Julkunen-Tiitto, R., Rousi, M., Bryant, J., Sorsa, S., Keinänen, M. & Sikanen, H. (1996): Chemical diversity of Betulaceae species: Comparison of phenolics and terpenoids in Northern birch species. Trees 11 (1) 16-22.

Julkunen-Tiitto, R. (1996): Growth versus defense in photomixotrophic culture conditions: The effect of sucrose, nitrogen and pH on the phytomass and secondary phenolics in S. myrsinifolia plantlets. Ecoscience 3 (3): 297-303.

Simola, H., Meriläinen, J.J., Sandman, O., Marttila, V., Karjalainen, H., Kukkonen, M., Julkunen-Tiitto, R. & Hakulinen, J. (1996): Palaeolimnological analyses as information source for large lake biomonitoring. Hydrobiologia 322: 283-292.

Juntheikki, M.-R., Julkunen-Tiitto, R. & Hagerman, A. (1996): Salivary Tannin binding Proteins in Root Vole (Microtus oeconomus). Biochem. Syst. Ecol. 24, 25-35.

Kangasjärvi, J., Pellinen, R., Tuomainen, J. Julkunen-Tiitto, R. & Kiiskinen, M. (1996): Ozone-induced defence reactions in birches (Betula pendula Roth). M.R. Ahuja et al. (eds.), Somatic Cell Genetics and Molecular Genetics of Trees, 265-271. Kluwer academic Publishers.

Keinänen, M. & Julkunen-Tiitto, R. (1996): The effect of sample preparation method on birch (Betula pendulaRoth) leaf phenolics. J. Agr. Food Chem. 44(9): 2724-2727.

Laukkanen, H., Julkunen-Tiitto, R. & Hohtola, A. (1997): Effects of the nitrogen nutrients on the viability, protein synthesis and tannin production of Scots pine callus. Physiol. Plant. 100: 982-988.

Lavola, A., Julkunen-Tiitto, R., Aphalo, P., de la Rosa, T. & Lehto, T. (1998): The effect of UV-B radiation on UV-absorbing secondary metabolites in birch seedlings grown under simulated forest soil. New Phytol. 137: 617-621.

Keinänen, M. & Julkunen-Tiitto, R. (1998): High-performance liquid chromatographic determination of flavonoids in birch leaves (Betula pendula and B. pubescens). J. of Chromatogr. A 793: 370-377.

Lavola, A., Julkunen-Tiitto, R., Roininen, H. & Aphalo, P. (1998): Host-plant preference of an insect herbivore mediated by UV-B and CO2 in relation to plant secondary metabolites. Biochem. Syst. Ecol. 26: 1-12

Rank, N. E., Köpf, A., Julkunen-Tiitto, R., & Tahvanainen, J. (1998): Effects of host plant chemical variation on defensive secretion, host preference, and larval performance of a willow leaf beetle. Ecology 79: 618-631.

Köpf, A, Rank, N., Roininen, H., Julkunen-Tiitto, R., Pasteel, J. & Tahvanainen, J. (1998): The evolution of host plant use and sequestration in the leaf beetle genus Phratore (Coleaoptera: Chrysomelidae). Evolution 52(2): 517-528.

Keinänen, M., Lavola, A., Juntheikki, M.-R., Hakulinen, J., Tahvanainen, J. & Julkunen-Tiitto, R. (1998): Methodological and biological sources of variation in foliar phenolics of birches (Betula L.). Recent Research Developments in Agricultural & Food Chemistry 2: 309-318.

Keinänen, M., Julkunen-Tiitto, R., Mutikainen, P., Walls, M., Ovaska, J. & Vapaavuori, E. (1999): Combined effects of partial defoliation and nutrient availability on phenolic compounds of cloned Betula pendula saplings. Ecology 80: 1970-1986.

Keinänen, M., Julkunen-Tiitto, R., Rousi, M. & Tahvanainen, J. (1999): Taxonomic implications of phenolic variation in leaves of birch (Betula L.) species. Biochem. System. and Ecology 27 (3): 243-254.

Hakulinen, J., Sorjonen, S. & Riitta Julkunen-Tiitto, R. (1999): Leaf phenolic of the three willow clones differing in development of Melampsora rust infection. Physiologia Plantarum 105: 662-669.

Aphalo, P., Tegelberg, R. & Julkunen-Tiitto, R. (1999): The modulated UV-B irradiation system at the University of Joensuu. Biotronics 28: 109-120.

Roininen, H., Price, P., Julkunen-Tiitto, R., Tahvanainen, J. & Ikonen, A. (1999): Oviposition stimulants for a galling sawfly, Euura lasiolepis, is a willow phenolic glycoside. J. Chem Ecol. 25: 943-953

Hakulinen. J. & Julkunen-Tiitto, R. (2000): Variation in leaf phenolics of field cultivated willow (Salix myrsinifolia Salisb.) clones in relation to occurrence of Melampsora rust. Eur. J. For. Path. 30:29-41.

Ruuhola, T. & Julkunen-Tiitto, R. (2000): Salicylates in intact Salix myrsinifolia plantlets are not exposed to rapid metabolic turnover. Plant Phys. 122: 895-905.

Mutikainen, P., Walls, M., Ovaska, J., Keinänen, M., Julkunen-Tiitto, R. & Vapaavuori, E. (2000). Herbivore resistance in cloned Betula pendula: Costs of induced and constitutive resistance. Ecology 81: 49-55.

Juntheikki, M.-R. & Julkunen-Tiitto, R. (2000): Inhibition of ß-glucosidase and esterase by tannins from Betula,Salix and Pinus species. J. Chem. Ecol. 26(5): 1151-1165.

Laitinen, M.-L., Julkunen-Tiitto, R. & Rousi, M. (2000): Chemical variation within birch (Betula pendulaRoth). J. Chem. Ecol. 26: 1609-1622.

Lavola, A., Julkunen-Tiitto, R., Aphalo, P. De la Rosa, T. & Lehto, T. (2000): Allocation of carbon to growth and secondary metabolites in birch seedlings under UV-B radiation and CO2 exposure. Physiologia Plantarum 108: 120-125.

Nyman, T. & Julkunen-Tiitto, R. (2000): Manipulation of phenolic chemistry of host plants by gall-inducing sawflies. Proceed. Nat. Acad. Sci. USA 97: 13184-13187.

Julkunen-Tiitto, R. & Sorsa, S. (2001): Testing the drying methods for willow flavonoids, tannins and salicylates. J. Chem Ecol. 27 (4): 779-789.

De la Rosa, T., Julkunen-Tiitto, R., Lehto, T. & Aphalo, P.J. (2001): Secondary metabolites and nutrient concentration in silver birch seedlings under five UV-B irradiances and two relative nutrient addition rates. New Phytologist 150: 121-131.

Graglia, E., Julkunen-Tiitto, R., Shaver, G. R., Schmidt, I. K., Jonasson, S. & Michelsen, A. (2001): Changes in dwarf birch phenolic compounds in long-term manipulations of temperature, nutrients and light in tundra ecosystems in Alaska and northern Sweden. New Phytologist 151: 227-236.

Kostina, E., Wulff, A., Julkunen-Tiitto, R. (2001): Growth, structure, stomatal responses and secondary metabolites of birch seedlings under elevated UV-B radiation in the field experiment. Trees 15: 483-491.

Kuokkanen, K., Julkunen-Tiitto, R., Keinänen, M., Niemelä, P. And Tahvanainen, J. (2001): The effect of elevated CO2 and temperature on the secondary chemistry of Betula pendula seedling. Trees 15: 378-384.

Tegelberg, R., Julkunen-Tiitto, R. & Aphalo, P. (2001): The effect of the long-term UV-radiation on birch (Betula pendula Roth) seedlings. Global Change Biology 7: 839-848.

Tegelberg, R. & Julkunen-Tiitto, R. (2001): Quantitative changes in secondary metabolites of dark-leaved willow (Salix myrsinifolia Salisb.) exposed to enhanced ultraviolet-B radiation. Physiologia Plantarum 113: 541-547.

Mutikainen, P., Walls, M., Ovaska, J., Keinänen, M., Julkunen-Tiitto, R. & Vapaavuori E. (2002): Costs of herbivore resistance in clonal saplings of Betula pendula. Oecologia 133: 364-371.

Laitinen, M.-L., Julkunen-Tiitto, R. & Rousi, M. (2002): Foliar phenolic composition of European white birch during bud and leaf development. Physiologa Plantarum 114: 450-460.

Tegelberg R, Julkunen-Tiitto, R. & Aphalo, P.J. (2002): The effects of long-term elevated ultraviolet-B radiation on phytochemicals in the bark of silver birch (Betula pendula). Tree Physiology 22: 1257-1263.

Veteli, T. O., Kuokkanen, K, Julkunen-Tiitto, R, Roininen, H., Tahvanainen, J. (2002): Effects of elevated CO2 and temperature on plant growth and herbivore defensive chemistry. Global Change Biology 8: 1240-1252.

Karjalainen, R., Lehtinen, A., Keinänen, M., Julkunen-Tiitto, R., Hietaniemi, V., Pihlava, J.-M. & Jokinen, K. 2002: Benzothiadiazole and glycine betaine treatments enhance phenolic compound production in strawberry. Acta Horticulturae 67:356

Keski-Saari, S. and Julkunen-Tiitto, R. (2003): Resource allocation in different parts of juvenile mountain birch plants: effect of nitrogen supply on seedling phenolics and growth. Physiologia plantarum 118: 114-126.

Tegelberg, R., Veteli, T., Aphalo, P.J. & Julkunen-Tiitto, R. (2003): Clonal differences in growth and phenolics in willows exposed to elevated ultraviolet-B radiation. Basic and Applied Ecology 4 (3): 219-228.

Ruuhola, T. & Julkunen-Tiitto, R. (2003): Trade-off between the synthesis of salicylates and the growth of micropropagated Salix pentandra plants. J. Chem. Ecol. 29 (7): 1565-1588.

Ruuhola, T., Julkunen-Tiitto, R. & Vainiotalo, P. (2003): In vitro-degradation of willow salicylates. Physiologia Plantarum 29(5): 1083-1097.

Lavola, A., Aphalo, P., Lahti, M., Julkunen-Tiitto, R. (2003): Nutrient availability and the effect of increasing UV-B radiation on secondary compounds in Scots pine. Environmental and Experimental Botany 49: 49-60.

Roitto, M., Markkola, AM, Julkunen-Tiitto, R., Sarjala, T., Rautio, P. Kuikka, K., & Tuomi, J. (2003): Defoliation-induced respones in peroxidases, phenolics and polyamines in Scot pine (Pinus sylvestris L.) needles. J. Chem Ecol. 29(8):1905-1918.

Veteli, T.O., Tegelberg, R., Julkunen-Tiitto, R., Pusenius, J., Aphalo PJ, Sipura, M. and Tahvanainen, J. (2003): Interactions between willows and insect herbivores under enhanced ultraviolet-B radiation. Oecologia 137: 312-320.

Häggman, H., Frey, A.D., Aronen, T., Ryynänen, L., Julkunen-Tiitto, R., Tiimonen, H., Pihakaski-Maunsbach, K., Chen, X. & Kallio, P.T. (2003): Expression of Vitreoscilla hemoglobin in hybrid aspen (Populus tremula x tremuloides) indication for an improved energy metabolism in an economically relevant tree species. Plant Biotechnology Journal 1: 287-300.

Keski-Saari, S. and Julkunen-Tiitto, R. (2003): Early developmental responses of mountain birch (Betula pubescens subsp. Czerepanovii) seedlings to different concentrations of phosphorus. Tree Physiology 23: 1201-1208.

Tikkanen, O-P. & Julkunen-Tiitto, R. (2003): Phenological variation as protection against defoliating insects: the case of Quercus robur and Operophtera brumata. Oecologia 136: 244-251.

Yamali, K., Julkunen-Tiitto, R., Rousi, M., Freiwald, V. & Oksanen, E. (2003): Ozone exposure over two growing seasons alters root to shoot ratio and chemical composition of birch (Betula pendula Roth). Global Change Biol. 9: 1363-1377.

Laitinen, M.-L., Julkunen-Tiitto, R., Yamali, K., Heinonen, J. & Rousi, M. (2004): Variation in bark secondary compounds between and within clones: implication for herbivory. Oikos 104: 316-326.

Tegelberg, R., Julkunen-Tiitto, R., Aphalo, P.J. (2004): Red:far-red light ratio and UV-B radiation: their effects on leaf phenolics and growth of silver birch seedlings. Plant, Cell and Environment 27: 1005-1013.

Rousseaux, M. C., Julkunen-Tiitto, Searles, P.S.,R., Scopel, A. L., Aphalo, P. J., and Pallare, C. L. (2004): Solar UV-B radiation affects leaf quality and insect herbivory in the southern beech tree Noctophagus antarctica. Oecologia 138:505-512.

Mattson, W.J., Kuokkanen, K., Niemelä, P., Julkunen-Tiitto, R., Kellomäki, S. and Tahvanainen, J. (2004): Elevated CO2 alters birch resistance to Lagomorpha herbivores. Global Change Biol. 10: 1402-1413.

Lehto, T., Räisänen, M., Lavola, A., Julkunen-Tiitto, R. and Aphalo, P. J. (2004): Boron mobility in deciduous forest trees in relation to polyols. New Phytologist 163: 333-339.

Lehto, T., Lavola, A., Julkunen-Tiitto, R. and Aphalo, P. (2004): Boron retranslocation in Scots pine and Norway spruce. Tree Physiology 24 (9): 1011-1017.

Glynn, C., Rönnberg-Wästljung, A-C., Julkunen-Tiitto, R. and Weih, M. (2004): Willow genotype, but not drought treatment, affects leaf -beetle resistance and foliar phenolic concentrations. Entomologia Experimentalis et Applicata 113: 1-14.

Niemi, K., Julkunen-Tiitto, R., Tegelberg, R. and Häggman, H. (2005). Light sources with different spectra affect root and mycorrhiza formation of Scots pine in vitro. Tree physiology 25 (1): 123-128.

Kuokkanen, K., Niemelä, P., Matala, J., Julkunen-Tiitto, R., Kellomäki, S. and Tahvanainen, J. (2005) The effects of elevated CO2 and temperature on the resistance of winter-dormant birch seedlings (Betula pendula) to hares and voles. Global Change Biol. 10: 1504-1512.

Laitinen, M.-L., Julkunen-Tiitto, R., Tahvanainen, J., Heinonen, J. & Rousi, M. (2005). Variation in birch (Betula pendula) bark secondary chemistry due to genotype, environment and ontogeny. J. Chem. Ecology 31 (4): 697-717.

Stolter, C., Ganzhorn, J.U., Ball, J. P., Julkunen-Tiitto, R. and Lieberei, R. (2005) Winter browsing of moose (Alces alces) on two different willow species: food selection in relation to plant chemistry and plant response. Canadian J. Zoology 83: 807-819.

Julkunen-Tiitto, R. Häggman, H., Aphalo, P., Lavola, A., Tegelberg, R. & Veteli, T. (2005). Constraints of UV-B radiation in deciduous trees. Environmental pollution 137 (3): 404-414.

Roitto, M., Rautio, P., Julkunen-Tiitto, R., Kukkola, E., & Huttunen, S. (2005). Changes in the concentrations of phenolics and photosynthates in Scots pine seedlings exposed to nickel and copper. Env. Pollution 137 (3): 603-609.

Laitinen, J., Julkunen-Tiitto, R., Rousi, M., Heinonen, J. & Tahvanainen, J. (2005). Ontogeny and environment as determinants of the secondary chemistry of three species of white birch. J. Chem. Ecology 31 (10); 2243-2262.

Mattson, W.J., Julkunen-Tiitto, R. & Herms, D.A. (2005). CO2 enrichment and carbon partitioning to phenolics: do plant responses accord better with the protein competition model or growth differentiation mode. Oikos 111: 337-347.

Turtola, S., Rousi, M., Pusenius, J., Yamaji, K., Heiska, S., Tirkkonen, V., Meier, B. & Julkunen-Tiitto, R. (2005). Clone-specific responses in leaf phenolics of willows exposed to enhanced UV-B radiation and drought stress. Global Change Biol. 11:1655–1666.

Keski-Saari, S., Pusenius, J. & Julkunen-Tiitto, R. (2005). Phenolic compounds in seedlings of Betula pubescensand B. pendula are affected by enhanced UV-B radiation and different nitrogen regimes during early ontogeny. Global Change Biol. 11: 1180-1194.

Ojala. K, Julkunen-Tiitto, R., Lindrström, L. & Mappes, J. (2005). Diet affects the encapsulation ability of an arctiid moth Parasemia plantaginis. Evolutonary Ecology Reserach 7: 1153-1170.

Nyman, T. & Julkunen-Tiitto, R. (2005). Chemical variation within and among six northern willow species. Phytochemistry 66: 2836-2843.

Heiska, S., Turtola, S., Tirkkonen, V., Meier, B., Rousi, M., & Julkunen-Tiitto, R. (2005). The effect of genotype and cultivation method on the total salicylate yield of dark-leaved willows (Salix myrsinifolia). Planta Medica 71:1134-1139

Peltonen, P., Julkunen-Tiitto, R. & Vapaavuori, E. (2005). Atmospheric change alters phenolic composition in birch leaves. Global Change Biol. 11(8): 1305-1324.

Hansen, A.H., Jonasson, S., Michelsen, A. & Julkunen-Tiitto, R. (2006). Long-term experimental warming, shading and nutrient addition affect the concentration of phenolic compounds in arctic-alpine deciduous and evergreen dwarf schrubs. Oecologia 147:1-11.

Stolter, C., Ganzhorn, J.U. and Julkunen-Tiitto, R. (2006). Application of near infrared reflectance spectroscopy (NIRS) to assess properties of an arctic ecosystem. Basic and Applied Ecology 7: 167-187.

Heijari, J., Kivimäenpää, M., Hartikainen, H., Julkunen-Tiitto, R. & Wulff, A. (2006). Responses of strawberry (Fradagiax ananassa) to supplemantal UV-B radiation and selenium under field conditions. Plant and Soil 282: 27-39.

Tegelberg, R., Turtola, S., Rousi, M., Meier, B. & Julkunen-Tiitto, R. (2006). Soluble polyamines in Salix myrsinifolia and S. myrsinites x S. myrsinifolia plantlets to increased UV-B irradiation and decreasing watering. Trees 20:299-303.

Peltonen, P. A., Julkunen-Tiitto, R., Vapaavuori, E. & Holopainen, J. K. (2006). Effects of elevated carbon dioxide and ozone on aphid oviposition preference and birch bud exudate phenolics. Global Change Biology 12: 1-10.

Turtola, S., Rousi, M., Pusenius, J., Yamaji, K., Heiska, S., Tirkkonen, V., Meier, B. & Julkunen-Tiitto, R. (2006). Genotypic variation in drought response of willows grown under ambient and enhanced UV-B radiation. Env. Exp. Bot. 56(1): 80-86.

Nybakken. L. & Julkunen-Tiitto, R. (2006). UV-B induces usnic acid in reindereer lichens. The Lichenologist 38 (5): 477-485.

Turtola, S., Sallas, L., Holopainen, J., Julkunen-Tiitto, R. & Kainulainen, P. (2006). Long-term exposure to enhanced UV-B radiations has no significant effect on the growth or secondary compounds outdoor-grown Scots pine and Norway spruce seedlings. Env. Pollution 144(1) 166-171.

Heinäaho, M., Pusenius, J. & Julkunen-Tiitto, R. (2006). Effects of different organic farming methods on the concentrations of phenolic compounds in sea buckthorn leaves. J. of Agr. Food Chem. 54(20) 7678-7685.

Tiainen, M., Pusenius, J., Julkunen-Tiitto, R. & Roininen, H. (2006). Intraspecific competition, growth, chemistry, and susceptibility to voles in seedlings of Betula pendula. J. Chem. Ecology 32: 2287–2301.

Stark, S., Julkunen-Tiitto, R., Kumpula, J. (2007). Ecological role of reindeer summer browsing in the mountain birch (Betula pubescens ssp. czerepanovii) forests: effects on plant defense, litter decomposition and soil nutrient cycling. Oecologia 151(3): 486-498.

Martz. F., Sutinen, M-L., Derome ,K., Wingsle, G., Julkunen-Tiitto, R., Turunen, M. (2007). Effect of UV-exclusion on the seasonal concentration of photosynthetic and UV-screening pigments in Scots pine needles. Global Change Biology 13: 252-256.

Lyytinen, A., Lindström, L., Mappes, J., Julkunen-Tiitto, R., Fasulati, S.R. & Tiilikkala, K. (2007). Variability in host plant chemistry: Behavioural responses and life-history parameters of the colorado potato beetle (Leptinotars decemlineata). Chemoecology 17:51-56.

Niemi, K., Julkunen-Tiitto, R, Häggman, H & Sarjala, T. (2007). Suillus variegatus causes significant changes in the content of individual polyamines and flavonoids in Scots pine seedlings during mycorrhiza formation in vitro. J. Exp. Bot. 58:391-401.

Kasurinen, A., Peltonen, P.A., Julkunen-Tiitto, R., Vapaavuori, E., Nuutinen, V., Holopainen T, Holopainen JK. (2007). Effects of elevated CO2 and O3 on leaf litter phenolics and subsequent performance of litter-feeding soil macrofauna. Plant Soil 292: 25-43.

Keski-Saari, S. Flack, M., Heinonen, J., Zon, J. and Julkunen-Tiitto, R. (2007). Phenolics during early development of Betula pubescens seedlings: inhibition of phenylalanine ammonia lyase. Trees - Structure and Function 21: 263-272.

Nybakken, L., Keski-Saari, S. Falck, M.A. & Julkunen-Tiitto, R. (2007). Restoration of secondary metabolism in birch seedlings relieved from PAL-inhibitor. Trees - Structure and Function 21: 273-281.

Heiska, S., Tikkanen, O.-P., Rousi, M., Turtola, S., Tirkkonen, V., Meier, B. & Julkunen-Tiitto, R. (2007). The susceptibility of herbal willow to Melampsora rust and herbivores. Eur. J. Plant. Pathol. 118: 275-285.

Veteli, T.O., Mattson, W.J., Niemelä, P., Julkunen-Tiitto, R., Kellomäki, S., Kuokkanen, K. & Lavola, A. (2007). Do elevated temperature and CO2 generally have counteracting effects on phenolic phytochemistry of boreal trees? J. Chem. Chem. Ecol. 33(2): 287-296.

Sandre, S-L., Tammaru, T., Esperk, T., Julkunen-Tiitto, R. & Mappes, J. (2007). Carotenoid-based colour polyphenism in a moth species: search for fitness correlates. Entomologia Experimentalis et Applicata 124 (3): 269-277.

Stark, S., Julkunen-Tiitto, R. & Kumpula, J. (2007). Seasonal variation in foliar phenolics in adult mountain birch (Betula pubescens ssp. czerepanovii) trees in relation to browsing by reindeer (Rangifer tarandus). Oecologia 151:486-498.

Heiska, S., Tikkanen, O-P., Rousi, M. & Julkunen-Tiitto, R. (2007). Bark salicylates and condensed tannins reduce vole browsing amongst cultivated dark-leaved willows (Salix myrsinifolia Salisb.). Chemoecology 17: 245-253.

Rummukainen, A., Julkunen-Tiitto, R., Räisänen, M. & Lehto, T. (2007). Phenolic compounds in Norway spruce as affected by boron nutrition and cold acclimation. Plant and Soil 292 (1-3):13-23.

Hjältén, J., Niemi, L., Wennerström, A., Ericson, L., Roininen, H. and Julkunen-Tiitto, R. (2007). Variable responses of natural enemies to Salix triandra phenotypes with different secondary chemistry. Oikos 116(5): 571-578.

Kotilainen, T., Tegelberg, R., Julkunen-Tiitto, R., Lindfors, A. & Aphalo, P. (2008). Metabolite specific effects of solar UV-A and UV-B on alder and birch phenolics. Global Change Biol. 14: 1294-1304.

Räisänen, T., Ryyppö, A., Julkunen-Tiitto, R. & Kellomäki, S.(2008). Effects of elevated CO2 and temperature on secondary compounds in the needles of Scots pine (Pinus sylvestris L.). Trees 22: 121-135.

Keski-Saari, S., Ossipov, V, Julkunen-Tiitto, R., Jia, J., Danell, K., Veteli, T., Guiquan, Z., Yaowug, X. & Niemelä, P. (2008). Phenolics from the culms of five bamboo species in the Tangjiahe and Wolong Giant Panda Reserves, Sichuan, China. Biochemical Systematics and Ecology 1–8.

Huttunen, L., Niemelä, P., Julkunen-Tiitto, R., Heiska, S., Tegelberg, R., Rousi, M. & Kellomäki, S. (2008). Does defoliation induce chemical and morphological defenses in the leaves of silver birch seedlings under changing climate? Chemoecology 18: 85-98.

Tegelberg, R., Julkunen-Tiitto, R., Vartiainen, M., Paunonen, R., Rousi, M. & Kellomäki S. (2008). Exposures to elevated CO2, elevated temperature and enhanced UV-B radiation modify activities of polyphenol oxidase and guaiacol peroxidase and concentrations of chlorophylls, polyamines and soluble proteins in the leaves of Betula pendula seedlings. Environmental and Experimental botany 62: 308-315.

Heinäaho, M., Aniszewski. T., Pusenius, J., Julkunen-Tiitto, R. (2008). Effects of Fertilizers, Mulches and Land Contours on the Vegetative Growth of Sea Buckthorn Cultivars in Organic Farming. Biological Agriculture and Horticulture 26: 309-322.

Nerg, A.-M., Kasurinen, A., Holopainen, T., Julkunen-Tiitto, R., Neuvonen, S. & Holopainen, J.K. (2008). The significance of ectromycorhizas in chemical quality of silver birch foliage and above-ground insect herbivore performance. Chemoecology 34: 1322-1330.

Heinäaho, M., Aniszewski. T., Pusenius, J., Julkunen-Tiitto, R. (2008). Berry Yield of Two Finnish Sea Buckthorn Cultivars to Organic Farming Methods. J. Horticultural Sci and Biotech. 83 (5): 563-568.

Freiwald, V., Häikiö, E., Julkunen-Tiitto, R., Holopainen, JK. & Oksanen, E. (2008). Elevated ozone affects the feeding behaviour of common lead weevil on hybrid aspen hrough shift in developmental, chemical, and structural properties. Ent. Exp. et Appl. 128: 66-72.

Stark, S., Julkunen-Tiitto, R., Holappa, E., Mikkola, K. & Nikula, A. (2008). Concentrations of Foliar Quercetin in Natural Populations of White Birch (Betula pubescens) Increase with Latitude. J Chem. Ecol. 34 (11): 1382-1391.

Stolter, C., Niemelä, P, Varvikko, T., Julkunen-Tiitto, R., Ball, J.P., Ganzhorn, J.U. (2009). Comparison of secondary chemistry and digestibility of three different boreal coniferous trees. Basic and Applied Ecology 10: 19-26.

Martz, F Peltola, R Fontanay, S Duval, RE Julkunen-Tiitto, R Stark, S. (2009). Effect of Latitude and Altitude on the Terpenoid and Soluble Phenolic Composition of Juniper (Juniperus communis) Needles and Evaluation of Their Antibacterial Activity in the Boreal Zone. J. Agr. Food Chem. 57 (20), 9575 - 9584.

Paunonen, R. Julkunen-Tiitto, R. Rousi, M. Tegelberg, R & Heiska, S. (2009). Salicylate and biomass yield, and leaf phenolics of dark-leaved willow (Salix myrsinifolia Salisb.) clones under different cultivation methods after the second cultivation cycle. Industrial Crops and Products 29 (2-3): 261-268.

Häikiö, E., Freiwald, V., Julkunen-Tiitto, R., Beuker, E., Holopainen, T. & Oksanen, E. (2009). Differences in leaf characteristics between ozone sensitive and tolerant hybrid aspen (Populus tremula x P. tremuloides) clones. Tree Physiology 29: 53-66.

Roitto, M., Rautio, P., Markkola, A., Julkunen-tiitto, R., Varama, M., Saravesi, K. & Tuomi, J. (2009). Induced accumulation of phenolics and sawfly performance in Scots pine in response to previous defoliation Tree Physiol. 29: 207 - 216.

Kotilainen, T., Haimi, J., Tegelberg, R., Julkunen-Tiitto, R., Vapaavuori, E. and Aphalo, P. (2009). Solar UV radiation alters alder and birch litter chemistry that in turn affects decomposers. Oecologia 161 (4): 719-728.

Häikiö, E., Makkonen, M., Julkunen-Tiitto, R., Sitte,J., Freivald, V., Dilfver, T., Pamdey, V., Beuker, E., Holopainen, T., Oksanen, E. (2009). Performance and secondary chemistry of two hybrid aspen (Populus tremula L. x Populus tremuloides Michx.) clones in long-term elevted ozone exposure. J. Chem. Ecol. 35 (6): 664-678.

Heinäaho, M., Hagerman, A. and Julkunen-Tiitto, R. (2009). The Effect of Different Organic Farming Methods on the Phenolic Composition of Sea Buckthorn Berries. J. Agr. Food Chem. 57(5): 1940-1947.

Sutela, S., Niemi, K., Edesi, J., Laakso, T., Saranpää, P., Vuosku, J., Mäkelä, R, Tiimonen, H, Chiang, V., Koskimäki, J., Suorsa, M., Julkunen-Tiitto, R. & Häggman, H. (2009). Phenolic compounds in ectomycorrhizal interaction of lignin modified silver birches and Paxillus involutus. BMC Plant Biology 9:124.

Martz, F., Turunen, M, Julkunen-Tiitto, R., Lakkala, K. & Sutinen, M-L. (2009). Effect of the temperature and the exclusion of UVB radiation on the soluble phenolic composition in Menyanthes trifoliata L. leaves in the subarctic. Environmental Pollution 157 (12): 3471-3478.

Kotilainen, T., Venäläinen, T., Tegelberg, R., Lindfors, A., Julkunen-Tiitto, R., Sirkka Sutinen, S. & Aphalo, P. (2009). Assessment of UV biological spectral weighting functions for phenolic metabolites and growth responses in silver birch seedlings. Photochemistry and photobiology 85 (6): 1346-1355.

Nerg, A-M., Kasurinen, A., Holopainen, T., Julkunen-Tiitto, R., Neuvonen, S & Holopainen, J.K. (2009). Interactions of ectomycorrhizas and above-ground insect herbivores on silver birch. Plant Signaling & Behavior 4 (4): 355-357.

Vapaavuori, E., Holopainen, J.K., Holopainen, T., Julkunen-Tiitto, R., Kaakinen, S., Kasurinen, A., Kontunen-Soppela, S., Kostiainen, K., Oksanen, E., Peltonen, P., Riikonen, J. & Tulva, I. (2009). Rising atmospheric carbon dioxide concentration partially masks the negative effects of elevated ozone in silver birch (Betula pendula (Roth)). AMBIO 38 (8): 418-424.

Salonen, A., Ollikka, T., Grönlund, E., Ruottinen, L. and Julkunen-Tiitto (2009).Pollen analysis of honey from Finland. Grana 48: 281-289.

Saviranta, N., Julkunen-Tiitto, R, Oksanen, E. & Karjalainen, R. (2010). Red clover (Trifolium pratense L.) isoflavones: Root phenolic compounds affected by biotic and abiotic stress factors. Journal of the Science of Food and Agriculture 90 (3): 418-423.

Saviranta, N., Julkunen-Tiitto, R., Oksanen, E., Karjalainen, R.O. (2010). Leaf phenolic compounds in red clover (Trifolium pratense L.) induced by exposure to moderately elevated ozone. Environmental Pollution, Volume 158 (2): 440-446.

Axelsson, P., Hjältén, J., LeRoy, C., Julkunen-Tiitto, R., Wennström, A. and Pilate, G. (2010). Can Leaf Litter from Genetically Modified Trees Affect Aquatic Ecosystems? Ecosystems (N.Y.). 13 (7): 1049-1059

Peltonen PA, Vapaavuori E, Heinonen J, Julkunen-Tiitto R & Holopainen JK. (2010). Do elevated atmospheric CO2 and O3 affect food quality and performance of folivorous insects on silver birch? Global Change Biology 16 (3): 918-935.

Kotilainen, T., Tegelberg, R., Julkunen-Tiitto, R., Lindfors, A., O'Hara, R. & Aphalo, P. (2010). Seasonal fluctuations in leaf phenolic composition under UV manipulations reflect contrasting strategies of alder and birch trees. Physiologica Plantarum 140 (3): 297-309.

Fares, S., Oksanen, E., Lännenpää, M., Julkunen-Tiitto, R. &Loreto, F. (2010). Volatile emissions and phenolic compound concentrations along a vertical profile of Populus nigra leaves exposed to realistic ozone concentrations. Photosynthesis Research 104(1): 61-64.

Koskela, A., Anttonen, M., Soininen, T., Saviranta, N., Auriola, S., Julkunen-Tiitto, R. & Karjalainen, R. (2010). Variation in the anthocyanin concentration of wild populations of crowberry (Empetrum nigrum L subsp. Hermaphroditum). J. Agricultural and Food Chem. 58 (23): 12289-12295.

van Asch, M., Julkunen-Tiito, R. & Visser, M. (2010). Maternal effects in an insect herbivore as a mechanism to adapt to host plant phenology. Functional Ecology 24 (5):1103-1109.

Wennström, A., Niemi, L., Hjältén, J. & Julkunen-Tiitto, R. (2010). Mother really knows best: Host choice of adult phytophagous insect females reflects a within-host variation in suitability as larval food. Chemoecology 20 (1): 35-42.

Stolter, C., Ball, J.P., Niemelä, P., Julkunen-Tiitto, R. (2010). Herbivores and variation in the composition of specific phenolics of boreal coniferous trees - a search for patterns. Chemoecology 20 (4): 229-242.

Martz, F., Jaakola, L., Julkunen-Tiitto, R. & Stark, S. (2010). Phenolic composition and antioxidant capacity of bilberry (Vaccinium myrtillus) leaves in northern Europe following foliar development and along environmental gradients. J. Chem. Ecol. 36 (9): 1017-1028.

Martz, F., Turunen, M., Julkunen-Tiitto, R., Suokanerva, H. & Sutinen, M.-L. (2010). Different response of two reindeer forage plants to enhanced UV-B radiation: modification of the phenolic composition. Polar Biology 32(6): 813-832. 2011, 34: 411-420.

Anttila, U, Julkunen-Tiitto, R, Rousi, M., Yang, S., Rantala, M and Ruuhola, T. (2011). Effects of elevated UV-B radiation on a plant-herbivore interaction. Oecologia 164:163–175.

Paajanen, R., Julkunen-Tiitto, R., Nybakken, L., Petrelius, M., Tegelberg, R., Pusenius, J., Rousi, M., Kellomäki, S. (2011). Dark-leaved willow (Salix myrsinifolia) is resistant to three-factor climate change. New Phytologist 190 (1): 161-168 (DOI: 10.1111/j.1469-8137.2010.03583)

Ruuhola, T., Leppänen, T., Julkunen-Tiitto, R., Rantala, M., and Lehto, T. (2011). Boron Fertilization Enhances the Inducible Resistance of Silver Birch. J. of Chem Ecol. 37:460–471.

Nyman, T., Paajanen, R., Heiska, S. and Julkunen-Tiitto, R. (2011). Preference-performance relationship in the gall midge Rabdophaga rosaria: insights from a common-garden experiment with nine willow clones. Ecological Entomology. 36: 200-211.

Hattas, D., Hjältén, J., Julkunen-Tiitto, R., Scogings, P. and Rooke, T. (2011). Differential phenolic profiles in six African savanna woody species in relation to antiherbivore defense. Phytochemistry 72: 1796-1803.

Salonen, A., Hiltunen, J. and Julkunen-Tiitto, R. (2011). Composition of Unique Unifloral Honeys from the Boreal Coniferous Forest Zone: Fireweed and Raspberry Honey. Journal of ApiProduct and ApiMedical Science 3: 128-136.

Pedersen, S., Andreassen, H., Persson, I.-L., Julkunen-Tiitto, R., Danell, K. and Skarpe, C. (2011). Vole preference of bilberry along gradients of simulated moose density and site productivity. Interactive Zoology 6: 342-352.

Axelsson E. P., Hjälten J. Whitham Thomas, G, Julkunen-Tiitto, R., Pilate, G & Wennströn, A. (2011). Leaf ontogeny interacts with Bt modification to affect innate resistance in GM aspens. Chemoecology 21(3): 161-169 DOI: 10.1007/s00049-011-0080-8.

Axelsson E. P., Hjälten J. LeRoy, C.J., Whitham Thomas, G, Julkunen-Tiitto, R. & Wennströn, A. (2011). Leaf litter from insect-resistant transgenic trees causes changes in aquatic insect community composition. J. Applied Ecology 48 (6): 1472-1479 DOI: 10.1111/j.1365-2664.2011.02046.x

Martz, F., Turunen, M., Julkunen-Tiitto, R., Suokanerva, H. Sutinen, M.L. (2011). Different response of two reindeer forage plants to enhanced UV-B radiation: modification of the phenolic composition. Polar Biology 34(3): 411-420, DOI: 10.1007/s00300-010-0896-7.

Soininen, T., Jukarainen, N., Julkunen-Tiitto, R., Karjalainen, R., Vepsäläinen, J.J. (2011). The combined use of constrained total-line-shape 1H NMR and LC-MS/MS for quantitative analysis of bioactive components in yellow onion. Journal of Food Composition and Analysis 25:208-214. doi:10.1016/j.jfca.2011.09.001.

Nybakken, L., Hörkkä, R. & Julkunen-Tiitto, R. (2012). Combined enhancements of temperature and UVB influence growth and phenolics in clones of the sexually dimorphic Salix myrsinifolia. Physiologica Plantarum 145 (4): 551-564.

Salonen, A., Saarnio, S. and Julkunen-Tiitto, R. (2012). Phenolic compounds of propolis from the boreal coniferous zone. Journal of Apicultural Science 56 (1): 13-22.

Lavola, A., Karjalainen, R. & Julkunen-Tiitto, R. (2012). Bioactive Polyphenols in Leaves, Stems and Berries of Saskatoon (Amelanchier alnifolia Nutt.) Cultivars. J Agr Food Chem. 60 (4): 1020-1027.

Hattas, D. And Julkunen-Tiitto, R. (2012). The quantification of condensed tannins in African savanna tree species.Phytochemistry Letters 5: 329-334.

Salonen, A. and Julkunen-Tiitto, R. (2012). Characterisation of two unique unifloral honeys from the boreal coniferous zone: lingonberry and mire honeys. Agricultural and Food Science 21: 159-170.

Lehrman, A., Torp, M., Stenber, J., Julkunen-Tiitto, R., Björkman, C. (2012). Estimating direct resistance in willows against a major insect pest, Phratora vulgatissima, by comparing life history traits. Entomologia Experimentalis et Applicata 144 (1): 93-100.

Vosku, J., Suorsa, M., Ruottinen, M., Sutela, S., Muilu-Mäkelä, R., Julkunen-Tiitto, R., Sarjala, T., Neubauer, P. & Häggman, H. (2012). Polyamine metabolism during exponential growth transition in Scots pine embryogenic cell culture. Tree Physiology 32: 1274-1287.

Kosonen, M., Ruuhola, T., Keski-Saari, S., Constabel, P. & Julkunen-Tiitto, R. (2012). Effects of Overproduction of Condensed Tannins and Elevated Temperature on Chemical and Ecological Traits of Genetically Modified Hybrid Aspens (Populus tremula × P. tremuloides) J. Chem. Ecol. 38 (10): 1235-1246.

Hjälten, J., Axelsson, EP, Whitham, T.G., LeRoy, C.J., Julkunen-Tiitto, R., Wennström, A., Pilate, G. (2012). Increased resistance of BT aspens to Phratora vitellinae (Coleoptera) leads to increased plant growth under experimental conditions. PLOS ONE 7 (1).

Persson I.-L., Julkunen-Tiitto, R., Bergström, R., Wallgren, M., Suominen, O., Danell, K. (2012). Simulated moose (Alces alces L.) browsing increases accumulation of secondary metabolites in bilberry (Vaccinum myrtillus L.) along gradient of habitat productivity and solar radiation. J Chem Ecol 38 (19): 1225-1243.

Nybakken, L. & Julkunen-Tiitto, R. (2013). Gender differences in Salix myrsinifolia at the pre-reproductive stage are little affected by simulated climatic change. Physiologica Plantarum 147: 465-476.

Torp, M., Lehrman, A., Stenberg, J.A., Julkunen-Tiitto, R. & Björkman, C. (2013). Performance of herbivorous leaf beetle (Phratora vulgatissima) on Salix F2 hybrids: The importance of phenolics. J Chem. Ecol. 39 (4): 516-524.

Stolter, C., Ball, J. Julkunen-Tiitto, R. (2013). Seasonal differences in the role of specific phenolics and twig morphology result in contrasting patterns of foraging by a generalist herbivore. Canadian J Zoology 91:338-347.

Sutela, S., Ylioja, T., Jokipii-Lukkari, S., Anttila , A.-K., Julkunen-Tiitto, R., Niemi, K. Mollari, T., Kallio, P.T. and Haggman, H. (2013). The responses of Vitreoscilla hemoglobin-expressing hybrid aspen (Populus tremula x tremuloides) exposed to 24-h herbivory:expression of hemoglobin and stress-related genes in exposed and nonorthostichous leaves. J Plant Res 126 (6): 795-809.

Taulavuori, K., Julkunen-Tiitto, R., Hyöky, V. & Taulavuori, E. (2013). Blue mood for superfood. Natural product Communication 8 (6): 791-794.

Hjältén, J., Axelsson, E.P., Julkunen-Tiitto, R, Pilate, G. & Wennström, A. (2013).Innate and introduced resistance traits in genetically modified aspen trees and their effect on leaf beetle feeding. PlosOne 8 (9), 1-8.

Ruuhola, T., Nybakken, L. & Julkunen-Tiitto, R. (2013). Sex-related differences of two ecologically divergent Salixspecies in the responses of phenoloxidase activities to atmospheric CO2 enrichment. Biologica Plantarum 57 (4): 732-738.

Bernal, M., Llorens, L., Julkunen-Tiitto, R., Badosa, J., Verdaguer, D. (2013). Altitudinal and seasonal changes of phenolic compounds in Buxus sempervirens leaves and cuticles. Plant physiology and biochemistry 70: 471-482.

Virjamo, V, Julkunen-Tiitto, R, Henttonen, H., Hiltunen, E., Karjalainen, R., Korhonen, J. & Huitu, O. (2013). Differences in vole preference, secondary chemistry and nutrient levels between naturally regenerated and planted Norway spruce seedlings. J. Chem Ecol. 39 (10): 1322-34.

Lavola, A., Nybakken, L., Rousi, M., Pusenius, J., Petrelius, M., Kellomäki, S. & Julkunen-Tiitto, R. (2013). Combination treatment of elevated UVB radiation, CO2 and temperature has little effect on silver birch (Betula pendula) growth and phytochemistry. Physiologica Plantarum 149 (4): 499-514.

Rummukainen, A., Julkunen-Tiitto, R., Ryyppö, A, Kaunisto, S. & Lehto, T. (2013). Long-term effects of nitrogen, boron and copper on monoterpenes and phenolics in Scots pine (Pinus sylvestris) needles. Plant and Soil 373: 485-499.

Anttila, A-K., Pirttilä, A-M., Häggman, H., Harju, A., Venäläinen, M, Holmbom, B, Haapala, A. & Julkunen-Tiitto, R. (2014). Condensed conifer tannins as antifungal agents in liquid culture. Holzforschung 67(7): 825-832.

Väisänen, M., Martz, F., Kaarlejärvi, E., Julkunen-Tiitto, R., Stark, S. (2014). Growth and defense responses of mountain crowberry (Empetrum nigrum ssp. hermaphroditum) to global/climate in subarctic tundra depend on grazing intensity by reindeer (Rangifer tarandus). J Chem. Ecol. 39: 1390-1399.

2014 Fyhrquist, P., Laakso, I., Garcia Marco, S., Julkunen-Tiitto, R., Hiltunen, R. (2014). Antimycobacterial activity of ellagitannin and ellagic acid derivate rich crude 6 extracts and fractions of five selected species of Terminalia used for treatment of 7 infectious diseases in African traditional medicine. South African Journal of Botany 90: 1-16.

Soininen, T., Jukarainen, N., Soininen, P., Auriola, S., Julkunen-Tiitto, R., Oleszek, W., Stochmal, A., Karjalainen, R., Vepsäläinen, J. (2014). Metabolite Profiling of Leek (Allium porrum L) Cultivars by 1H NMR and HPLC–MS. Phytochemical Analyses 25(3): 220-228.

Soininen, T., Jukarainen, N., Auriola, O.S., Julkunen-Tiitto, R. and Karjalainen, R. (2014). Quantitative metabolite profiling of edible onion species by NMR and HPLC-MS. Food Chem. 169: 499-505.

Virjamo, V., Julkunen-Tiitto, R. (2014). Shoot development of Norway spruce (Picea abies) involves changes in piperidine alkaloids and condensed tannins. Trees, Structure and Function 28(2): 227-237.

Randriamanana, T.R., Nybakken, L., Lavola, A., Aphalo, P.J., Nissinen, K., Julkunen-Tiitto, R. (2014). Sex-related differences in growth and carbon allocation to defence in Populus tremula as explained by current plant defence theories. Tree physiology34: 471-487.

Virjamo, V., Sutinen, S., Julkunen-Tiitto, R. (2014). Combined effect of elevated UVB, elevated temperature and fertilization on growth, needle structure and phytochemistry of young Norway spruce (Picea abies) seedlings. Global Change Biology 20 (7): 2252-2260, DOI: 10.1111/gcb.12464

Egigu, M.C., Ibrahim, M.A., Riikonen, J., Yahya, A., Holopainen, T., Julkunen-Tiitto, R., Holopainen, J.K. (2014). Effects of Rising Temperature on Secondary Compounds of Yeheb (Cordeauxia edulis Hemsley). American Journal of Plant Sciences 5: 517-527.

Huitu, O., Forbes, K.M., Helander, M., Julkunen-Tiitto, R., Lambin, Z., Saikkonen, K., Stuart, P., Sulkama, S. and Hartley, S. (2014). Silicon, endophytes and secondary metabolites as grass defenses against mammalian herbivores. Frontier of Plant Science 5(478), DOI: 10.3389/fpls.2014.00478

Sutela, S., Hahl, T., Tiimonen, H., Aronen, T., Ylioja, T., Laakso, T., Saranpää, P., Chiang, V., Julkunen-Tiitto, R., Häggman, H. (2014). Phenolic compounds and expression of 4CL genes in silver birch clones and Pt4CL1a lines. PLOS ONE 9 (12) e114434.

Julkunen-Tiitto, R., Nenadis, N., Neugart, S., Robson, M., Agati, G., Vepsäläinen, J., Zipoli, G., Nybakken, L., Winkler, B.,Jansen, M.A.K. (2015). Assessing the response of plant flavonoids to UV radiation – an overview of appropriate techniques. Phytochemistry Review 14(2): 273-297.

Strømme, C. B., Olsen, J. E., Julkunen-Tiitto, R., Krishna, U., Lavola, A., Nybakken, L. (2015). UV-B and temperature enhancement affect bud phenology in Populus tremula. Plant Cell and Environment 38 (5): 867-877.

Volf, M., Hrcek, J., Julkunen-Tiitto, R., Novotny, V. (2015). To each its own: differential response of specialist and generalist herbivores to plant defence in willows. Journal of Animal Ecology 84 4: 1123-1132.

Volf, M., Julkunen‐Tiitto. R- and Hrcek, J. (2015). Insect herbivores drive the loss of unique chemical defense in willows. Entomologia Experimentalis et Applicata 156 (1): 88-98

Randriamanana, T.R., Nissinen, K., Moilanen, J., Nybakken, L. Julkunen-Tiitto, R. (2015). Long-term UV-B and temperature enhancements suggest that females of Salix myrsinifolia plants are more tolerant to UV-B than males. Environmental and Experimental Botany 109: 296-305.

Kosonen, M., Lännenpää, M., Ratilainen, M., Kontunen-Soppela, S., Julkunen-Tiitto, R. (2015). Decreased anthocyanidin reductase (ANR) expression strongly decreases silver birch (Betula pendula) growth and alters phenolics accumulation Physiologica Plantarum 155(4): 384-399.

Barbour, M., Rodriguez-Cabal, M., Wu, E., Julkunen-Tiitto, R., Ritland, C., Miscampbell, A., Jules, E., Crutsinger, G. (2015). Multiple plant traits shape the genetic basis of herbivore community assembly. Functional Ecology 29 (8): 66-73.

Llorens, L., Badenes-Pérez, F., Julkunen-Tiitto, R., Zidorn, C., Fereres, A., Marcel A.K. Jansen, MAK. (2015). The role of UV-B radiation in plant sexual reproduction. Perspectives in Plant Ecology, Evolution and Systematics 17 (3): 243-254.

Randriamanana, T.R., Lavola, A., Julkunen-Tiitto, R. (2015). Interactive effects of supplemental UV-B and temperature in European aspen seedlings: implications for growth, leaf traits, phenolic defense and associated organisms. Plant Physiology and Biochemistry 93: 84-93.

Sivadasan, U., Randriamanana, T., Nybakken, L., Julkunen-Tiitto, R. (2015). Responses of vegetative buds of Salix myrsinifolia to temperature and UVB elevation. Plant Physiology and Biochemistry 93: 66-73.

Stark , S., Väisänen, M., Ylänne, H., Julkunen-Tiitto, R. and Martz, F. (2015). Decreased phenolic defence in dwarf birch (Betula nana) after warming in subarctic tundra. Polar Biology 38 (12): 1993-2005.

Axelsson, E.P., Iason, G.R., Julkunen-Tiitto, R. and Whitham, T.G. (2015). Host Genetics and Environment Drive Divergent Responses of Two Resource Sharing Gall-Formers on Norway Spruce: A Common Garden Analysis. PLoS One 10 (11).

Taulavuori, K., Hyöky, V., Oksanen, J., Taulavuori, E., Julkunen-Tiitto, R. (2016).. Species-specific differences in synthesis of flavonoids and phenolic acids under increasing periods of enhanced blue light. Environmental and Experimental Botany. 121:145-150.

Venugopal, P., Julkunen-Tiitto, R., Junninen, K., Kouki, J. (2016). Phenolic compounds in Scots pine heartwood: are kelo trees unique woody substrate? Canadian Journal of Forest Research 46(2): 255-233.

Lu J., Venäläinen M., Julkunen-Tiitto R. and Harju A.M. (2016). Stilbene impregnation retards brown-rot decay of Scots pine sapwood. Holzforschung 70 (3): 261-266.

Barbour, M.A., Fortuna, M.A., Bascompte, J., Nicholson, J.R., Julkunen-Tiitto, R., Jules, E.S., Crutsinger, G.M. (2016). Genetic specificity of a plant-insect food web: Implications for linking genetic variation to network complexity. PNAS 113 (8): 2128-2133.

Mengistu, M.M., Kasurinen, A. Holopainen, T., Julkunen-Tiitto, R. Holopainen, J.K. (2016). The effect of warming and enhanced ultraviolet radiation on gender-specific emissions of volatile organic compounds from European aspen. Science of Total Environment 547: 39-47.

Nissinen, K, Nybakken, l, Virjamo, V., Julkunen-Tiitto, R. (2016). Slow-growing Salix repens (Salicaceae) benefits from changing climate. Env. Exp. Bot. 128: 59-68.

Virjamo, V., Julkunen-Tiitto, R. (2016). Variation in piperidine alkaloid chemistry of Norway spruce (Picea abies) foliage in diverse geographic origins grown in the same area. Canadian J. For. Sci. 46 (4): 456-460.

Stromme, CB, Julkunen-Tiitto, R, Olsen, JE, Nybakken L (2017). High daytime temperature delays autumnal bud formation in Populus tremula under field conditions. Tree Phys. 37(1): 71-81.

Salonen, A., Virjamo, V., Tammela, P., Fauch, L. & Julkunen-Tiitto, R. (2017). Screening bioactivity and bioactive constituents of Nordic unifloral honeys. Food Chemsitry 237: 214-224.

Fyhrquist, P., Virjamo, V., Hiltunen, E. & Julkunen-Tiitto, R. (2017). Epidihydropinidine, the main piperidine alkaloid compound of Norway spruce (Picea abies) shows promising antibacterial and anti-Candida activity. Fitoterabia 117: 138-146.

Hattas, D., Scogings, P.F. & Julkunen-Tiitto, R. (2017). Does the growth differentiation balance hypothesis explain allocation of secondary metabolites in Combretum apiculatum, an African savanna woody species? J Chem. Ecology 43 (2): 153-163.

Lavola, A., Salonen, A., Virjamo,V., Julkunen-Tiitto; R. (2017). Phytochemical variation in the plant-part specific phenols of wild crowberry (Empetrum hermaphroditum Hagerup) populations. Phytochemistry Letters 21 (2017) 11–20.

Bandau, F., Albrectsen B., Julkunen-Tiitto, R., Gundale, M.J. (2017). Genotypic variability in Populus tremula L. affects how anthropogenic nitrogen enrichment influences litter decomposition. Plant and Soil 410 (1-2): 467-481.

Salih, E.Y.A., Kanninen, M., Sipi, M., Luukkanen, O., Hiltunen, R., Vuorela, H., Julkunen-Tiitto, R., Fyhrquisr, P. (2017). Tannins, flavonoids and stilbenes in extracts of African savanna woodlands trees Terminalia brownie, Terminalia laxiflora and Anogeissus leiocarpus showing promising antibacterial potential. South African Journal of Botany 108: 370-386.

Taulavuori, E., Taulavuori, K., Holopainen, J.K., Julkunen-Tiitto, R., Acar, C. & Dincer, I. (2017). Targeted use of LEDs in improvment of production efficiency through phytochemical enrichement. Journal of the Science of Food and Agriculture97 (15): 5059-5064.

Nissinen, K., Virjamo, V., Randriamanana, T., Sobuj, N., Siwadasan, U., Mehtätalo, L., Beuker, E. & Julkunen-Tiitto, R. (2017). Responses of growth and leaf phenolics in European aspen (Populus tremula) to climate change during juvenile phase change. Canadian Journal of Forest Research 47(10): 1350-1363.

Siwadasan, U., Randriamanana, T., Chenhao, C., Virjamo, V., Nybakken, L. & Julkunen-Tiitto, R. (2017). Effect of climate change on bud phenology of young aspen plants (Populus tremula L.). Ecology and Evolution 7(19): 7998-8007.

Holopainen, J.K., Kivimäenpää, M. & Julkunen-Tiitto, R. (2018). New light for phytochemicals. Trends in Biotechnology 36(1): 7-10.

Sobuj N., Virjamo V., Zhang Y., Nybakken L., Julkunen-Tiitto R. (2018). Impacts of elevated temperature and CO2 concentration on growth and phenolics in the sexually dimorphic Populus tremula (L.). Environmental and Experimental Botany 146: 34-44.

Moritz K.K., Parachnowitsch A.L., Julkunen-Tiitto R., Björkman C., Ayres M.P., Stenberg J.A. (2018). Roe deer prefer mixed-sex willow stands over monosexual stands but do not discriminate between male and female plants. Environmental and Experimental Botany 146: 62-67.

Salih E., Julkunen-Tiitto, R., Lampi, A.M., Kanninen, M., Luukkainen, O., Sipi M., Lehtonen, M., Vuorela H., Fyhrquist P. (2018). Terminalia laxiflora and Terminalia brownii contain a broad spectrum of antimycobacterial compounds including ellagitannins, ellagic acid derivatives, triterpenes, fatty acids and fatty alcohols. J Ethnopharmacology 227: 82-96.

Holopainen J., Virjamo, V., Ghimere R.P., Blande J., Julkunen-Tiitto R., Kivimäenpää M. (2018). Climate Change Effects on Secondary Compounds of Forest Trees in the Northern Hemisphere. Frontiers in Plant Science 9: 1445.

Lavola A., Maukonen M., Julkunen-Tiitto, R. (2018). Variability in the composition of phenolic compounds in winter-dormant Salix pyrolifolia in relation to plant part and age. Phytochemistry 153: 102-110.

Tegelberg R., Virjamo V., Julkunen-Tiitto R. (2018). Dry-air drying at room temperature- a practical pre-treatment method of tree leaves for quantitative analyses of phenolics. Phytochemical Analyses 29(5): 493-499.

Zhang Y., Virjamo V., Du W., Yin Y., Nissinen K., Nybakken L., Guo H., Julkunen-Tiitto R. (2018). Effects of soil pyrene contamination on growth and phenolics in Norway spruce (Picea abies) are modified by elevated temperature and CO2. Environmental Science and Pollution Research, 25(13): 12788–12799.

Zhang Y., Virjamo V., Sobuj N., Du W., Yin Y., Nybakken L., Guo H., Julkunen-Tiitto R. (2018). Elevated temperature and CO2 affect responses of European aspen (Populus tremula) to soil pyrene contamination. Science of the Total Environment, 634: 150–157.

Zhang Y., Virjamo V., Sobuj N., Du W., Yin Y., Nybakken L., Guo H., Julkunen-Tiitto R. (2018). Sex-related responses of European aspen (Populus tremula L.) to combined stress: TiO2 nanoparticles, elevated temperature and CO2 concentration. Journal of Hazardous Materials, 352: 130–138.

Virjamo, V., Julkunen-Tiitto R. (2018). Quality and quantity of piperidine alkaloids in needles and bark of Scots pine (Pinus sylvestris) seedlings. Phytochemistry Letters 26: 106-109.

Nybakken L., Julkunen-Tiitto R., Asplund J., Ohlson M. (2018). Fertilization Changes Chemical Defense in Needles of Mature Norway Spruce (Picea abies). Frontiers in Plant Science 9: 770.

Sivadasan U., Chenhao C. Nissinen K., Randriamanana T., Nybakken L., Julkunen-Tiitto R. (2018). Growth and defence of aspen (Populus tremula) after three seasons under elevated temperature and ultraviolet-B radiation. Canadian J For. Res. 48(6): 629-641.

Randriamanana T., Nissinen K., Ovaskainen A., Lavola A., Peltola H., Albrectsen B., Julkunen-Tiitto R. (2018). Does fungal endophyte inoculation affect the responses of aspen seedlings to carbon dioxide enrichment? Funcal Ecology 33: 24-31.

Taulavuori K., Pyysalo A., Taulavuori E., Julkunen-Tiitto R. (2018). Responses of phenolic acid and flavonoid synthesis to blue and blue-violet light depends on plant species. Environmental and Experimental Botany 150: 183-187.

Ruuhola, T., Nybakken L., Randriamanana T., Lavola A., Julkunen-Tiitto R. (2018). Effects of long-term UV-exposure and plant sex on the leaf phenoloxidase activities and phenolic concentrations of Salix myrsinifolia (Salisb.). Plant Physiology and Biochemistry 126: 55-62.

Nissinen K., Virjamo, V., Mehtatalo L., Lavola A., Valtonen A., Nybakken L., Julkunen-Tiitto R. (2018). A Seven-Year Study of Phenolic Concentrations of the Dioecious Salix myrsinifolia. J Chem. Ecol. 44(4): 416-430.

Stromme, C.B., Julkunen-Tiitto, R., Olsen J.E. Nybakken L. (2018). The dioecious Populus tremula displays interactive effects of temperature and ultraviolet-B along a natural gradient. Environmental and Experimental Botany 146: 13-26.

Barbero-Lopez A., Ochoa-Retamero A., lopez-Gomez Y., Vilppo T., Venäläinen M., Lavola A., Julkunen-Tiitto R., Haapala A. (2018). Activity of Spent Coffee Ground Cinnamates against Wood-decaying Fungi in vitro. Bioresources 13 (3): 6555-6564.

Asante, B., Sirviö, J. A., Li, P., Lavola, A., Julkunen‐Tiitto, R., Haapala, A.Liimatainen, H. (2019). Adsorption of bark derived polyphenols onto functionalized nanocellulose: Equilibrium modelling and kinetics. American Institute of Chemical Engineers 66 (2): p.n/e1682.

Ojeda, F., Midgley, J., Pauw, A., Lavola, A., Casimiro-Soriguer, R., Hattas, D., Segarra-Moragues, J.G., Julkunen-Tiitto, R. (2019). Flower colour divergence is associated with post-fire regeneration dimorphism in the fynbos heath Erica coccinea subsp. coccinea (Ericaceae). Evolutionary ecology 33 (3): 345-367.

Tiiva, P., Julkunen-Tiitto, R., Häikiö, E., Kasurinen, A. (2019). Belowground responses of Scots pine (Pinus sylvestris) seedlings to experimental warming, moderate nitrogen addition, and bark herbivory. Canadian Journal of Forest Research 49 (6): 647-660.

Ghimire, R. P., Kasurinen, A., Häikiö, E., Holopainen, J. K., Julkunen-Tiitto, R., Holopainen, T., Kivimäenpää,M. (2019). Combined effects of elevated ozone, temperature, and nitrogen on stem phenolic concentration of Scots pin (Pinus sylvestris) seedlings. Canadian Journal of Forest research 49 (3): 246-255.

Kovalchuk, A., Zeng, Z., Ghimire, R. P., Kivimäenpää, M., Raffaello, T., Liu, M., Mukrimin, M., Kasanen, R., Sun, H., Julkunen-Tiitto, R., Holopainen, J. K., Asiegbu, F. O. (2019). Dual RNA-seq analysis provides new insights into interactions between Norway spruce and necrotrophic pathogen Heterobasidion annosum s.l. BMC plant biology 19 (1): 2.

Mukrimin, M., Conrad, A. O., Kovalchuk, A., Julkunen-Tiitto, R., Bonello, P., Asiegbu, F. O. (2019). Fourier-transform infrared (FT-IR) spectroscopy analysis discriminates asymptomatic and symptomatic Norway spruce trees. Plant science (Limerick) 289: 110247.

Fyhrquist, P., Salih, E.Y. A., Helenius, S., Laakso, I., Julkunen-Tiitto, R. (2020). HPLC-DAD and UHPLC/QTOF-MS analyses of polyphenols in extracts of the African species Combretum padoides, C. zeyheri and C. psidoidesrelated to their antimycobacterial activity. Antibiotics (Basel), 9 (8): 459.

Li, T., Tiiva, P., Rinnan, Å., Julkunen-Tiitto, R., Michelsen, A., Rinnan, R. (2020). Long-term effects of elevated CO2, nighttime warming and drought on plant secondary metabolites in a temperate heath ecosystem.Annals of botany 125 (7): 1065-1075.

Nissinen, K., Virjamo, V., Kilpeläinen, A., Ikonen, V-P., Pikkarainen, L., Ärväs, I-L., Kirsikka-aho, S., Peltonen, A., Sobuj, N., Sivadasan, U., Zhou, X., Ge, Z-M., Salminen, T., Julkunen-Tiitto, R., Peltola, H. (2020). Growth responses of boreal Scots pine, Norway spruce and silver birch seedlings to simulated climate warming over three growing seasons in a controlled field experiment. Forests 11 (9): 943.

Virjamo, V., Fyhrquist, P., Koskinen, A., Lavola, A., Nissinen, K., Julkunen-Tiitto, R. (2020). 1,6-Dehydropinidine is an abundant compound in Picea abies (Pinaceae) sprouts and 1,6-dehydropinidine fraction shows antibacterial activity against Streptococcus equi subsp. equi. Molecules (Basel, Switzerland) 25 (4558) 1-12.

Thitz, P., Mehtätalo, L., Välimäki, P., Randriamanana, T., Lännenpää, M., Hagerman, A.E., Andersson, T., Julkunen-Tiitto, R., Nyman, T. (2020). Phytochemical shift from condensed tannins to flavonoids in transgenic Betula pendula decrease consumption and growth but improves growth efficiency of Epirrita autumnata larvae. Journal of chemical ecology 46 (2): 217-23.

Sobuj, N., Virjamo, V., Nissinen, K., Sivadasan, U., Mehtätalo, L., Nybakken, L., Peltola, H., Julkunen-Tiitto, R. (2020). Responses in growth and phenolics accumulation to lateral bud removal in male and female saplings of Populus tremula (L.) under simulated climate change. The Science of the total environment 704: 135462.

Rasheed, M.U., Julkunen-Tiitto, R., Kivimäenpää, M., Riikonen, J., Kasurinen, A. (2020). Responses of soil-grown Scots pine seedlings to experimental warming, moderate nitrogen addition and bark herbivory in a three-year field experiment. Science of Total Environment 733: 139110.

Salih, E.Y.A., Julkunen-Tiitto, R., Luukkanen, O., Sipi, M., Fahmi, M.K.M., Fyhrquist, P.J. (2020). Potential anti-tuberculosis activity of the Extracts and their active conponents of Anogeissus Leicocarpa (DC.) Guill and Perr. with special emphasis on polyphenols. The Journal of Antibiotics 9(364): 1-28.

Salih, E. Y.A., Julkunen-Tiitto, R., Luukkanen, O., Fahmi, M.K.M., Fyhrquist, P. (2021). Hydrolyzable tannins (ellagitannins), flavonoids, pentacyclic triterpenes and their glycosides in antimycobacterial extracts of the ethnopharmacologically selected Sudanese medical plant Combretum hartmannianum Schweinf. Biomedicine & pharmacotherapy, 144: 112264

Sobuj, N., Nissinen, K., Virjamo, V., Salonen, A., Sivadasan, U., Randriamanana, T., Ikonen, V.-P., Kilpeläinen, A., Julkunen-Tiitto, R., Nybakken, L., Mehtätalo, L., Peltola, H. (2021). Accumulation of phenolics and growth of dioecious Populus tremula (L.) seedlings over three growing seasons under elevated temperature and UVB radiation. Plant physiology and biochemistry 165: 114-122.

Salonen, A., Lavola, A., Virjamo, V., Julkunen-Tiitto, R. (2021). Protein and phenolic content and antioxidant capacity of honey bee-collected unifloral pollen pellets from Finland. Journal of Apicultural Research, 60 (5): 744-750.

Verkasalo, E., Möttönen, V., Roitto, M., Vepsäläinen, J., Kumar, A., Ilvesniemi, H., Siwale, W., Julkunen-Tiitto, R., Raatikainen, O., Sikanen, L. (2021). Extractives of stemwood and sawmill residues of Scots pine (Pinus sylvestris L.) for biorefining in four climatic regions in Finland- Phenolic and resin acid compounds. Forests, 12 (2): 192.

Kivimäenpää, M., Virjamo, V., Ghimire, R. P., Holopainen, J. K., Julkunen-Tiitto, R., Martz, F., Nissinen, K., Riikonen, J. (2021). Changes in light spectra modify secondary compound concentration and BVOC emissions of Norway spruce seedlings. Canadian J. Forest Res. 51(9): 1218-1229.

Thitz, P., Hagerman A.E., Randriamanana, T., Virjamo, V., Kosonen, M., Lännenpää, M., Nyman, T., Mehtätalo, L., Kontunen-Soppela, S., Julkunen-Tiitto, R. (2021). Genetic modification of the flavonoid pathway alters growth and reveals flexible responses to enhanced UVB- Role of foliar condensed tannins. Plant Environment Interaction 2: 1-15.

Harju, A., Heiska, S., Julkunen-Tiitto, R., Venalainen, M., Aronen, T. (2022). Somatic embryogenesis of Pinus sylvestrisL. from parent genotypes with high- and low stilbene content in their heartwood. Forests 13(4): 557.

Referred book chapters:

Rousi, M., Oksanen, E. & Julkunen-Tiitto, R. (2005). Intraspecific variation in resistance and secondary chemistry of silver birch (Betula pendula). In. Minoru Terazawa (ed.), Tree Sap III, Hokkaido University Press, pp. 85-91.

Yamaji, K., Oksanen, E., Julkunen-Tiitto, R.& Rousi M. (2005). Variation of phenolic compunds in birch leaves exposed to ozone. In. Minoru Terazawa (ed.), Tree Sap III, ed Terazawa Minoru, pp.141-147.

R. Julkunen-Tiitto, M. Rousi, B. Meier, V. Tirkkonen, R. Tegelberg, S. Heiska, S. Turtola, R. Paunonen (2005). Herbal medicine production: breeding and cultivation of salicylates producing plants. In: Anneli Jalkanen & Pekka Nygren (eds.), Sustainable use of renewable natural resources - from principles to practices. University of Helsinki Department of Forest Ecology Publications 34. e-publication.

Häggman, H. and Julkunen-Tiitto, R. (2006). Metabolic profiling for transgenic forest trees. In Claire G. Williams (ed.): Landscapes, Genomics and Transgenic Conifers: Managing Forest Ecosystem, 12: 107-118, Springer.

Häggman, H., Pirttilä, A.M., Niemi, K., Sarjala, T. & Julkunen-Tiitto, R. (2009). Medicinal Properties, In Vitro Protocols and Secondary Metabolite Analyses of Scots Pine. S. Mohan Jain and Praveen K. Saxena (eds.), Methods in Molecular Biology, Protocols for In Vitro Cultures and Secondary Metabolite Analysis of Aromatic and Medicinal Plants, vol. 547 © Humana Press, a part of Springer Science + Business Media, LLC 2009 DOI: 10.1007/978-1-60327-287-2-3.

Julkunen-Tiitto, R and Häggman, H. (2009). Tannins and tannin agents. In T. Bechtold and R. Mussak (eds.) Handbook of Natural Colorants, pp. 201-219. John Wiley & Sons Ltd.

Julkunen-Tiitto, R. & Zon J. (2010). The trade-off between secondary metabolism and growth. In. MinoruTerazawa (ed.), Tree Sap IV, Hokkaido University Press.

Bergroth, K., Julkunen-Tiitto, R., Saranpää, P. & Yli-Kauhaluoma, K. (2011). Selected extractives in protection of goods and health. In Biorefinery Programme Report 2009–2011, Forest Cluster LDT, ISBN 978-952-92-9719-1, pp 128-137.

Julkunen-Tiitto, R., Nybakken, L., Randriamanana, T. and Virjamo, V. (2015). Boreal woody species resistance affected by climate change. In. Christer Björkman and Pekka Niemelä (eds), Climate Change and Insect best, chapter 4, pp. 54-73, CAB International, Preston UK.

Virjamo V, Julkunen-Tiitto R (2017). Pinaceae alkaloids. In Plant Specialized Metabolism: genomics, biochemistry, and biological functions. CRC Press. Taylor & Francis Group, LLC.

Julkunen-Tiitto R, Virjamo V (2017). Biosynthesis and Roles of Salicaceae Salicylates. In Plant Specialized Metabolism: genomics, biochemistry, and biological functions. CRC Press. Taylor & Francis Group, LLC.

Julkunen-Tiitto, R and Häggman, H. (2023). Focus on Tannins. In T. Bechtold and R. Mussak (eds.) Handbook of Natural Colorants, pp. 201-219. Second Edition, John Wiley & Sons Ltd.

Other scientific papers and related publications: more than 270.