Solar UV Radiation as a Selective Force in the Evolution of Terrestrial Plant Life
This paper will briefly reflect on the possible role of solar UV in the early stages of evolution of terrestrial plants and will examine a steep gradient of natural solar UV-B that currently exists on the Earth.
KeywordsLatitudinal Gradient Atmospheric Ozone Solar Angle Ecological Society Maximum Solar Radiation
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- Angell, J. K. and J. Korshover. 1973. Quasibiennial and long-term fluctuations in total ozone. Monthly Weather Review. 101: 426–443.Google Scholar
- Axelrod, D. I. 1959. Evolution of the psilophyte paleoflora. Evolution 13: 264–275.Google Scholar
- Berkner, L. V., and L. C. Marshall. 1965. On the origin and rise of oxygen concentration in the earth’s atmosphere. J. of Atmos. Sci. 22: 225–261.Google Scholar
- Caldwell, M. M. 1971. Solar ÚV irradiation and the growth and development of higher plants. In A. C. Giese [ed.] Photophysiology, Vol. 6, Academic Press, New York, 131–177.Google Scholar
- Caldwell, M. M. 1977. The effects of solar UV-B radiation (280–315 nm) on higher plants: implications of stratospheric ozone reduction. In. A. Castellani [ed.] Research in Photobiology. Plenum Publishing Co. New York,. 597–607.Google Scholar
- Caldwell, M. M., R. Robberecht,and W. D. Billings. 1980. A steep latitudinal gradient of solar ultraviolet-B radiation in the arctic-alpine life zone. Ecology 61: 600–611.Google Scholar
- Cline, M. G., and F. B. Salisbury. 1966. Effects of ultraviolet radiation on the leaves of higher plants. Radiat. Bot. 6: 151–163.Google Scholar
- Nachtwey, D. S. 1975. Linking 254 nm UV effects to UV-B effects via 280 nm equivalents. In D. S. Nachtwey, M. M. Caldwell, and R. H. Biggs [eds]. Impacts of Climatic Change on the Biosphere, Part I: UltravioletGoogle Scholar
- Radiation Effects (CIAP Mongr. 5). U.S. Department of Transportation, Springfield, VA. 3–54 to 3–73.Google Scholar
- Ratner, M. I., and J.C.G. Walker. 1972. Atmospheric ozone and the history of life. J. of Atmos. Sci. 29: 803–808.Google Scholar
- Robberecht, R. 1981. Higher plant acclimation to solar ultraviolet-B radiation. Ph.D. dissertation, Utah State University.Google Scholar
- Sagan, C. 1973. Ultraviolet selection pressure on the earliest organisms. J. of Theor. Bio. 61: 195–200.Google Scholar