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Klappentext One of the predicted consequences of the depletion of stratospheric ozone is an increase in the amount of ultraviolet light reaching the surface of the earth, in particular UV-B (320-280nm). Although the real effects are as yet unknown, this change in radiation could have profound consequences for plant growth and productivity. The need for information concerning the relationship between plants and UV-B is therefore pressing. This volume brings together authoritative contributions from leading experts in UV-B/plant studies and is unique in considering interactions at various scales, ranging from the level of the cell through to the level of the community. Information concerning ozone depletion and physical aspects of UV-B radiation complements the biological information to provide a thorough and comprehensive review of the status of knowledge. Zusammenfassung A review which considers studies at a range of scales! from the level of the cell through to the level of the community. Information on ozone depletion and physical aspects of UV-B radiation complements the biological information to provide comprehensive coverage of this important aspect of environmental change. Inhaltsverzeichnis Preface; Part I. The Ozone Layer and UV-B Radiation: 1. Ozone depletion in the Northern Hemisphere J. Pyle; 2. Monitoring changes in UV-B radiation A. Webb; 3. Action spectra for UV-B effects on plants: monochromatic and polychromatic approaches for analysing plant responses G. Holmes; Part II. Effects of UV-B on Plants at the Cellular Level: 4. DNA damage and repair in plants R. Taylor; 5. Genetic analysis of DNA repair mechanisms A. Britt; 6. Photosynthesis and photoinhibition N. Baker; 7. UV-B effects on the expression of genes encoding proteins involved in photosynthesis S. Mackerness; 8. UV-B perception and signal transduction G. Jenkins; 9. Ultraviolet radiation as a stress factor and the role of protective pigments J. Bornman; Part III. Effects of UV-B at the Whole Plant and Community Level: 10. Effects of UV-B on aquatic ecosystems D. Hader; 11. Assessing the impact of UV-B radiation on the growth and yield of field crops J. Corlett; 12. Effects of UV-B radiation on plants from agro-ecosystems and natural ecosystems J. Rozema; 13. Effects on subarctic vegetation of enhanced UV-B radiation L. Bjorn; 14. Impacts of elevated UV-B on forest ecosystems A. McLeod; 15. Effects of ultraviolet radiation and elevated CO2 on heathland communities S. Moody; 16. Alterations in competitive balance M. Caldwell; 17. Interactions between trophic levels N. Paul; Index....
