EFFECTS OF UV-RADIATION ON MOTILITY, PHOTOORIENTATION AND PIGMENTATION IN A FRESH-WATER CRYPTOMONAS

被引：27
|
作者：
HADER, DP
HADER, M
机构：
[1] Institut für Botanik, Pharmazeutische Biologie der Friedrich-Alexander-Universität, D-8520 Erlangen
来源：
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY | 1990年 / 5卷 / 01期
关键词：
Absorption spectra; Cryptomonas; image analysis; motility; photobleaching; phototaxis; UV radiation; videomicroscopy;
D O I：
10.1016/1011-1344(90)85009-L
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
The effects of UV radiation on photo-orientation, motility and pigmentation have been studied in a freshwater Cryptomonas species. The cells show a pronounced diaphototactic orientation which is affected by UV radiation at 50 mW m-2 within about 90 min. Both the average velocity of the swimming cells and the percentage of motile cells within the population decrease within about the same exposure time. UV radiation also bleaches the cellular pigments. © 1990.
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页码：105 / 114
页数：10
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