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The effect of UV-B and UV-C radiation on hibiscus leaves determined by ultraweak luminescence and fluorecence induction

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Author

Summary, in English

The effects of UV-C (254 nm) and UV-B (280-320 nm) on chlorophyll fluorescence induction and ultraweak luminescence (UL) in detached leaves of Hibiscus rosa-sinensis L. were investigated. UL from leaves exposed to UV-B and UV-C radiation reached a maximum 72 h after irradiation. In both cases most of the light was of a wavelength over 600 nm. An increase in the percentage of long wavelength light with time was detected. UV radiation increased peroxidase activity, which also reached a maximum 72 h after irradiation. UV-B and UV-C both reduced variable chlorophyll fluorescence. No effect on the amount of chlorophyll or UV screening pigments was observed with the short-term irradiation used in this investigation.

Publishing year

1989

Language

English

Pages

461-465

Publication/Series

Physiologia Plantarum

Volume

76

Issue

4

Document type

Journal article

Publisher

John Wiley & Sons Inc.

Topic

  • Biological Sciences

Status

Published

ISBN/ISSN/Other

  • ISSN: 0031-9317