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References

  • Bachereau F, Asta J. 1997. Effects of solar ultraviolet radiation at high altitude on the physiology and the biochemistry of a terricolous lichen (Cetraria islandica (L.) Ach.). Symbiosis 23: 197217.
  • BeGora M, Fahselt D. 2001a. Photolability of secondary compounds in some lichen species. Symbiosis 31: 322.
  • BeGora MD, Fahselt D. 2001b. Usnic acid and atranorin concentrations in lichens in relation to bands of UV irradiance. Bryologist 104: 134140.
  • Bjerke JW, Lerfall K, Elvebakk A. 2002. Effects of ultraviolet radiation and PAR on the content of usnic and divaricatic acids in two arctic-alpine lichens. Photochemical and Photobiological Sciences 1: 678685.
  • Britt AB. 1996. DNA damage and repair in plants. Annual Review of Plant Physiology and Plant Molecular Biology 47: 75100.
  • Buffoni Hall RS, Bornman JF, Björn LO. 2002. UV-induced changes in pigment content and light penetration in the fruticose lichen Cladonia arbuscula ssp. mitis. Journal of Photochemistry and Photobiology B: Biology 66: 1320.
  • Butler MJ, Day AW. 1998. Fungal melanins: a review. Canadian Journal of Microbiology 44: 11151136.
  • Cockell CS, Knowland J. 1999. Ultraviolet radiation screening compounds. Biological Reviews of the Cambridge Philosophical Society 74: 311345.
  • Demmig-Adams B, Máguas C, Adams WW III, Meyer A, Kilian E, Lange OL. 1990. Effect of high light on the efficiency of photochemical energy conversion in a variety of lichen species with green and blue-green phycobionts. Planta 180: 400409.
  • Dettki H, Esseen PA. 1998. Epiphytic macrolichens in managed and natural forest landscapes: a comparison at two spatial scales. Ecography 21: 613624.
  • Fahselt D. 1994. Secondary biochemistry of lichens. Symbiosis 16: 117165.
  • Fahselt D, Alstrup V. 1997. Visualization of extracellular deposits in recent and subfossil Umbilicaria hyperborea. Lichenologist 29: 547557.
  • Garcia-Pichel F, Wingard CE, Castenholz RW. 1993. Evidence regarding the UV sunscreen role of a mycosporine-like compound in the cyanobacterium Gloeocapsa sp. Applied and Environmental Microbiology 59: 170176.
  • Gauslaa Y, Ohlson M, Solhaug KA, Bilger W, Nybakken L. 2001. Aspect-dependent high-irradiance damage in two transplanted foliose forest lichens, Lobaria pulmonaria and Parmelia sulcata. Canadian Journal of Forest Research 31: 16391649.
  • Gauslaa Y, Solhaug KA. 1996. Differences in the susceptibility to light stress between epiphytic lichens of ancient and young boreal forest stands. Functional Ecology 10: 344354.
  • Gauslaa Y, Solhaug KA. 1999. High-light damage in air-dry thalli of the old forest lichen Lobaria pulmonaria-interactions of irradiance, exposure duration and high temperature. Journal of Experimental Botany 50: 697705.
  • Gauslaa Y, Solhaug KA. 2000. High-light-intensity damage to the foliose lichen Lobaria pulmonaria within a natural forest: the applicability of chlorophyll fluorescence methods. Lichenologist 32: 271289.
  • Gauslaa Y, Solhaug KA. 2001. Fungal melanins as a sun screen for symbiotic green algae in the lichen Lobaria pulmonaria. Oecologia 120: 462471.
  • Gauslaa Y, Ustuedt EM. 2003. Is protein a UV-B or a blue-light screening pigment in the lichen Xanthoria parietina? Photochemical & Photobiological Sciences (In press).
  • Golojuch ST, Lawrey JD. 1988. Quantitative variation in vulpinic and pinastric acids produced by Tuckermannopsis pinastri (lichen-forming Ascomycotina, Parmeliaceae). American Journal of Botany 75: 18711875.
  • Hesbacher S, Giez I, Embacher G, Fiedler K, Max W, Trawoger A, Turk R, Lange OL, Proksch P. 1995. Sequestration of lichen compounds by lichen-feeding members of the Arctiidae (Lepidoptera). Journal of Chemical Ecology 21: 20792089.
  • Hill DJ, Woolhouse HW. 1966. Aspects of the autecology of Xanthoria parietina agg. Lichenologist 3: 207214.
  • Horikoshi T, Nakahara M, Kaminaga H, Sasaki M, Uchiwa H, Miyachi Y. 2000. Involvement of nitric oxide in UVB-induced pigmentation in guinea pig skin. Pigment Cell Research 13: 358363.
  • Huneck S. 1999. The significance of lichens and their metabolites. Naturwissenschaften 86: 559570.
  • Huneck S, Yoshimura I. 1996. Identification of lichen substances. Berlin, Germany: Springer Verlag.
  • Jansen MAK, Gaba V, Greenberg BM. 1998. Higher plants and UV-B radiation: balancing damage, repair and acclimation. Trends in Plant Science 3: 131135.
  • Jokela K, Leszczynski K, Visuri R, Ylianttila L. 1995. Increased UV exposure in Finland in 1993. Photochemistry and Photobiology 62: 101107.
  • Jordan BR. 1996. The effects of ultraviolet-B radiation on plants: A molecular perspective. In: CallowJA, ed. Advances in botanical research, Vol. 22. London, UK: Academic Press Ltd, 97162.
  • Kerr JB, McElroy CT. 1993. Evidence for large upward trends of ultraviolet-B radiation linked to ozone depletion. Science 262: 10321034.
  • Krause GH, Schmude C, Garden H, Koroleva OY, Winter K. 1999. Effects of solar ultraviolet radiation on the potential efficiency of photosystem II in leaves of tropical plants. Plant Physiology 121: 13491358.
  • Lange OL. 1953. Hitze- und Trockenresistenz der Flechten in Beziehung zu ihrer Verbreitung. Flora 140: 3997.
  • Lange OL, Green TGA, Reichenberger H, Hesbacher S, Proksch P. 1997. Do secondary substances in the thallus of a lichen promote CO2 diffusion and prevent depression of net photosynthesis at high water content? Oecologia 112: 13.
  • Lange OL, Leisner JMR, Bilger W. 1999. Chlorophyll fluorescence characteristics of the cyanobacterial lichen Peltigera rufescens under field conditions. II. Diel and annual distribution of metabolic activity and possible mechanisms to avoid photoinhibition. Flora 194: 413430.
  • Lawrey JD. 1986. Biological role of lichen substances. Bryologist 89: 111122.
  • Legaz ME, Vicente C, Ascaso C, Pereira EC, Filho LX. 1986. Pigment analysis of sun and shade populations of Cladonia verticillaris. Biochemical Systematics and Ecology 14: 575582.
  • Madronich S, McKenzie RL, Caldwell MM, Björn LO. 1995. Changes in ultraviolet radiation reaching the earth's surface. Ambio 24: 143152.
  • Neitlich PN, McCune B. 1997. Hotspots of epiphytic lichen diversity in two young managed forests. Conservation Biology 11: 172182.
  • Nogués S, Baker NR. 1995. Evaluation of the role of damage to photosystem II in the inhibition of CO2 assimilation in pea leaves on exposure to UV-B radiation. Plant, Cell & Environment 18: 781787.
  • Nybakken L, Gauslaa Y, Solhaug KA. 2000. Light intensity and heat susceptibility of melanic and pale populations of the foliose lichen Lobaria pulmonaria. Blyttia 58: 185191.
  • Rehnstrom AL, Free SJ. 1996. The isolation and characterization of melanin-deficient mutants of Monilinia fructicola. Physiological and Molecular Plant Pathology 49: 321330.
  • Rex M, Harris NRP, Der Gathen P, Lehmann R, Braathen GO, Reimer E, Beck A, Chipperfield MP, Alfier R, Allaart M, O'Connor F, Dier H, Dorokhov V, Fast H, Gil M, Kyro E, Litynska Z, Mikkelsen IS, Molyneux MG, Nakane H, Nothollt J, Rummukainen M, Viatte P, Wenger J. 1997. Prolonged stratospheric ozone loss in the 1995–96 Arctic winter. Nature 389: 835838.
  • Rose F. 1988. Phytogeographical and ecological aspects of Lobarion communities in Europe. Botanical Journal of the Linnean Society 96: 6979.
  • Rundel PW. 1969. Clinal variation in the production of usnic acid in Cladonia subtenuis along light gradients. Bryologist 72: 4044.
  • Sass L, Vass I. 1998. Characterization of UV-B tolerance in lichens by photosystem II electron transport measurements. In: GarebG, ed. Photosynthesis: mechanisms and effects. Dordrecht: The Netherlands: Kluwer Academic Publishers, 23812384.
  • Sillett SC, Goslin MN. 1999. Distribution of epiphytic macrolichens in relation to remnant trees in a multiple-age Douglas-fir forest. Canadian Journal of Forest Research 29: 12041215.
  • Solhaug KA, Gauslaa Y. 1996. Parietin, a photoprotective secondary product of the lichen Xanthoria parietina. Oecologia 108: 412418.
  • Solhaug KA, Gauslaa Y. 2001. Acetone rinsing – a method for testing ecological and physiological roles of secondary compounds in living lichens. Symbiosis 30: 301315.
  • Sonesson M, Callaghan TV, Björn LO. 1995. Short-term effects of enhanced UV-B and CO2 on lichens at different latitudes. Lichenologist 27: 547557.
  • Stephenson NL, Rundel PW. 1979. Quantitative variation and the ecological role of vulpinic acid and atranorin in the thallus of Letharia vulpina. Biochemical Systematics and Ecology 7: 263267.
  • Sturm RA. 1998. Human pigmentation genes and their response to solar UV radiation. Mutation Research-Fundamental and Molecular Mechanisms of Mutagenesis 422: 6976.
  • Swanson A, Fahselt D. 1997. Effects of ultraviolet on polyphenolics of Umbilicaria americana. Canadian Journal of Botany 75: 284289.
  • Swanson A, Fahselt D, Smith D. 1996. Phenolic levels in Umbilicaria americana in relation to enzyme polymorphism, altitude and sampling date. Lichenologist 28: 331339.S.
  • Tønsberg T, Gauslaa Y, Haugan R, Holien H, Timdal E. 1996. The threatened macrolichens of Norway – 1995. Sommerfeltia 23: 1258.
  • Veit M, Bilger W, Mühlbauer T, Brummet W, Winter K. 1996. Diurnal changes in flavonoids. Journal of Plant Physiology 148: 478482.
  • Xiong FS, Day TA. 2001. Effect of solar ultraviolet-B radiation during springtime ozone depletion on photosynthesis and biomass production of Antarctic vascular plants. Plant Physiology 125: 738751.