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UV-Absorbing Pigments from Some Saudi-Arabian Algal Species

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Author(s): Mohamed S.M. Abdel-Kareem

Journal: International Journal of Botany
ISSN 1811-9700

Volume: 4;
Issue: 4;
Start page: 361;
Date: 2008;
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Keywords: UV-B radiation | absorbing pigments | algae | Saudi Arabia

ABSTRACT
A total of 17 Saudi-Arabian algal species related to 4 classes (Cyanophyceae, Rhodophyceae, Phaeophyceae and Chlorophyceae) were screened for the presence of UV-absorbing pigments. Irradiation experiment was conducted on Cladophora glauescens to assess the response of this species to extradoses of UV-B radiation. All the investigated species contain UV-B absorbing pigments. Although it has been suggested that green algae commonly contain low levels of UV-absorbing pigments some investigated green species showed promising quantities of these pigments. The amount of UV-absorbing pigments of Cladophora glauescens varied greatly according to the time as well as the distance of irradiation. Chlorophyll a, Chlorophyll b and carotenoids contents of the investigated species were also assessed.
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