Interactive effects of UV-B and pesticides on photosynthesis and nitrogen fixation of Anabaena doliolum

被引:1
|
作者
Pandey, V [1 ]
Rai, LC [1 ]
机构
[1] Banaras Hindu Univ, Dept Bot, Algal Biol Lab, Varanasi 221005, Uttar Pradesh, India
关键词
Anabaena doliolum; UV-B; pesticides; photosynthesis; nitrogen fixation;
D O I
暂无
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 effects of UV-B and commercial grade pesticides (butachlor and carbofuran), individually and in combination, were studied on a variety of physiological processes of rice field cyanobacterium Anabaena doliolum. Butachlor was found to be 2-12% more toxic than carbofuran and 4-24% than UV-B on the growth, photosynthesis, lipid peroxidation, membrane permeability, and nitrogenase activity of the test cyanobacterium. Of the three photosynthesis inhibitors, the butachlor-induced inhibition of whole chain was approximately 3 and 21% higher than carbofuran and UV-B, respectively. Although the interaction of the stress factors caused a significant inhibition (P<0.01), it was still less than the additive effect on the parameters investigated, except for PSI.
引用
收藏
页码:423 / 430
页数:8
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