Effects of increasing doses of UV-B radiation on photosynthesis and motility inChlamydomonas reinhardtii

被引:0
|
作者
R. A. Danilov
N. G. A. Ekelund
机构
[1] Mid Sweden University,Department of Applied Science
来源
Folia Microbiologica | 2000年 / 45卷
关键词
Photon Flux Density; Oxygen Evolution; Photosynthetic Apparatus; Photosynthetic Efficiency; Compensation Point;
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学科分类号
摘要
Effects of increasing doses of UV-B radiation on photosynthetic efficiency (PE) and motility inChlamydomonas reinhardtii were investigated. The exposure time ranged from 10 to 120 min at 0.73 W/m2 UV-B radiation. A decrease in compensation points (CP) was followed by an increase in PE on extending the UV-B treatment up to 60 min. The subsequent increase in PE was accompanied by increasing CPs. Enhanced doses of UV-B radiation thus have a stimulatory effect on the PE inC. reinhardtii. No inhibitory effects could be detected. No statistically significant differences in motility could be observed due to an extremely high variation of values.
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页码:41 / 44
页数:3
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