EFFECTS OF COPPER ON PHOTOPIGMENTS AND PHOTOSYSTEM-II ACTIVITY OF CYANOPHAGE N-1 RESISTANT MUTANT

被引：13
|
作者：
MISHRA, U
KASHYAP, AK
PANDEY, J
机构：
[1] Centre of Advanced Study in Botany, Banares Hindu University, Varanasi
来源：
ENVIRONMENTAL TECHNOLOGY | 1993年 / 14卷 / 04期
关键词：
PHOTOPIGMENTS; PHOTOSYSTEM-II; NOSTOC-MUSCORUM; CYANOPHAGE N-1; SPHEROPLAST;
D O I：
10.1080/09593339309385302
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The spheroplasts of cyanophage N-1 resistant mutant have been used to examine the effects of Cu2+ on photopigments and photosystem II. Chlorophyll-alpha, carotenoid and protein content were appreciably reduced by this metal. Photosystem II activity was inhibited by 50% at a Cu2+ concentration of 10 mumol L-1 and was completely blocked at 50 mumol L-1 Cu2+. Diphenyl carbazide did not protect the system from Cu2+ inhibition. However, the presence of EDTA reduced the inhibitory effects.
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页码：373 / 378
页数：6
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