CARBARYL-INDUCED EFFECTS ON GLUTATHIONE CONTENT, GLUTATHIONE-REDUCTASE AND SUPEROXIDE-DISMUTASE ACTIVITY OF THE CYANOBACTERIUM NOSTOC-MUSCORUM

被引：7
|
作者：
BHUNIA, AK
ROY, D
BANERJEE, SK
机构：
[1] Department of Biochemistry, University College of Science, Calcutta, 700 019
来源：
LETTERS IN APPLIED MICROBIOLOGY | 1993年 / 16卷 / 01期
关键词：
D O I：
10.1111/j.1472-765X.1993.tb01360.x
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
The carbamate insecticide carbaryl, at concentrations of 10 mg/l and above, significantly stimulated glutathione reductase (GR) and superoxide dismutase (SOD) activity in the cyanobacterium Nostoc muscorum. A low content of total glutathione (GSH + GSSG), decreased photosynthetic activity, and an increased level of H2O2 was observed in pesticide treated cyanobacteria. As no glutathione peroxidase was observed in this species, stimulation of GR and SOD activity, higher production of H2O2, and low glutathione level was attributed to the utilization of GSH to remove H2O2 spontaneously and nonenzymatically under conditions of pesticide toxicity.
引用
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页码：10 / 13
页数：4
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