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Plant Physiology 88:1055-1057 (1988)
© 1988 American Society of Plant Biologists

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Environmental and Stress Physiology

A New UV-A/B Protecting Pigment in the Terrestrial Cyanobacterium Nostoc commune1

S. Scherer, T.W. Chen2 and P. Böger

Lehrstuhl für Physiologie und Biochemie der Pflanzen, Universität Konstanz, D-7750 Konstanz, Federal Republic of Germany

A new ultraviolet (UV)-A/B absorbing pigment with maxima at 312 and 330 nanometers from the cosmopolitan terrestrial cyanobacterium Nostoc commune is described. The pigment is found in high amounts (up to 10% of dry weight) in colonies grown under solar UV radiation but only in low concentrations in laboratory cultures illuminated by artificial light without UV. Its experimental induction by UV as well as its capacity to efficiently protect Nostoc against UV radiation is reported.

2 Present address: Soils and Fertilizer Institute, Chinese Academy of Agricultural Sciences, 30 Baishiqiao Lu, Beijing 100081, People's Republic of China.

1 This study was generously supported by Stiftung Volkswagenwerk, Hannover, FRG.




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Copyright © 1988 by the American Society of Plant Biologists