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Impact of UV-B irradiation on chlorophyll content and chlorophyll fluorescence of two dwarf shrub species: Vaccinium myrtillus L. and Vaccinium vitis-idaea L. was investigated. The plants originating from different latitudes were used. The experiment was carried in the greenhouse. Three variants of ultraviolet-B irradiation were applied = O, lower dose = 11.32 and higher dose = 22.64 kJ m^-2 day^-1 UV-B[BE] (biologically effective dose of UV-B). Measurements of chlorophyll fluorescence and chlorophyll content were carried out. The response of dwarf shrubs to the increased UV-B radiation depended on UV-B dose, species traits and provenance. Vaccinium vitis-idaea was less sensitive to UV-B than Vaccinium myrtillus. The permanent discoloration was observed only on Vaccinium myrtillus leaves. The leaf bud brea of this species was accelerated at high UV-B dose compared to the control. The UV-B radiation influenced its photosynthetic apparatus: the chlorophyll content in leaves was reduced, the maximal and the steady state fluorescence of chlorophyll were diminished. The chlorophyll content in leaves of Vaccinium vitis-idaea did not change significantly but the relative vitality index and the steady state fluorescence were modified under the influence of the radiation.
Czasopismo
Rocznik
Tom
Strony
3--13
Opis fizyczny
Bibliogr. 19 poz., rys., tab.
Twórcy
autor
- Unversity of Agriculture, Department of Forestry, 60-625 Poznań
Bibliografia
- [1]. Blumthaler M., Ambach W. 1990 - Indication of increasing solar ultraviolet-B radiation flux in Alpine regions - Science, 248: 206-208.
- [2]. Caldwell M. M., Robberecht R., Nowak R. S., Billings W. D. 1982 - Differential photosynthetic inhibition by ultraviolet radiation in species from the arctic-alpine life zone - Arctic Alpine Res., 14 (3): 195-202.
- [3]. Caldwell M. M., Teramura A. H., Tevini M. 1989 - The changing solar ultraviolet climate and the ecological consequences for higher plants - Tree, 12: 363-367.
- [4]. Caldwell M. M., Teramura H. A., Tevini M., Bornman F. J., Björn O. L., Kulandaivelu G. 1995 - Effects of increased solar ultraviolet radiation on terrestrial plants - Ambio, 24 (3): 166-173.
- [5]. Cen Y.-P., Bornman J. F. 1990 - The Response of Bean Plants to UV-B Radiation Under Different Irradiances of Background Visible Light - J. Exper. Bot., 41 (232): 1489-1495.
- [6]. Comission of the European Communities 1993 - Environmental UV Radiation. Directorate - General XII for Science, research and development 1993. causes - effects - consequences. edited by J. Acevedo, C. Nolan DG XII / D-1, 3-77 pp.
- [7]. Farman J.C., Gardiner B.G., Shanklin gentlemen. D. 1985 - Large losses of total ozone in Antarctica reveal seasonal ClOx/NOx in-teraction - Nature, 315: 207-210.
- [8]. Gehrke C., Johanson U., Callaghan V. T., Chadwick D., Robinson H.C. 1995 - The impact of enhanced ultraviolet-B radiation on litter quality and decomposition processes in Vaccinium leaves from the Subarctic - Oikos, 72: 213-222.
- [9]. Inskeep W. P., Bloom P. R. 1985 - Extinction coefficients of chlorophyll a and b in N N-dimethylformamide and 80% acetone - Plant Physiol., 77: 483-485.
- [10]. Ivanzik W., Tevini M., Dohnt G., Voss M., Weiss W., Graber P., Renger G. 1983 - Action of UV-B radiation on photosynthetic primary reaction in spinach chloroplasts - Physiol. Plant., 58: 401-407.
- [11]. Johanson U., Gehrke C., Björn O. L., Callaghan V. T. 1995a - The effects of enhanced UV-B radiation on the growth of dwarf shrubs in subarctic heathland - Functional Ecology, 9: 713-719.
- [12]. Johanson U., Gehrke C., Björn O. L., Callaghan V. T., Sonesson M. 1995b - The effects of enhanced UV-B radiation on a subarctic heath ecosystem - Ambio, 24 (2): 106-111.
- [13]. Kerr J. B., Mc Elroy C. T. 1993 - Evidence for large upward trends of ultraviolet-B radiation linked to ozone depletion - Science, 262: 1032-1034.
- [14]. Łukaszek M., Poskuta J. 1996 - Chlorophyll a fluorescence kinetics and CO2 exchange rates in light and in darkness in leaves of tall fescue as affected by UV radiation - Acta Physiologiae Plantarum, 18 (4): 345-350.
- [15]. Nogues S., Baker R. N. 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 and Environment, 18: 781-787.
- [16]. Renger G., Völker J. H., Eckert R., Fromme S., Hohm- Veit, Graber P. 1989 - On the mechanism of photosystem II deterioration by UV-B irradiation - Photochemistry and Photobiology, 49 (1): 97-105.
- [17]. Robberecht R., Caldwell M. M., Bil1ings D. W. 1980 - Leaf ultraviolet optical properties along a latitudinal gradient in the arctic-alpine life zone - Ecology, 61 (3): 612-619.
- [18]. Young R. A., Björn O. L., Moan J., Nultsch W. 1993 - Environmental UV Photobiology - Plenum Press, New York, A Division of Plenum Publishing Corporation, 471 pp.
- [19]. Zarzycki K. 1984 - Ekologiczne liczby wskaźnikowe roślin naczyniowych Polski - [Indicator values of vascular plants in Poland] - PAN, Instytut Botaniki - [Polish Academy of Sciences, Institute of Botanic], Kraków, 45 pp.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BGPK-0055-1369