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.

引用

页码：373 / 378

页数：6

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