Photosystem 2 photoinactivation and repair in the Scenedesmus cells treated with herbicides DCMU and BNT and exposed to high irradiance期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Photosystem 2 photoinactivation and repair in the Scenedesmus cells treated with herbicides DCMU and BNT and exposed to high irradiance

Authors:	Komenda J.

Affiliation:	(1) Department of Autotrophic Microorganisms, Institute of Microbiology, Academy of Sciences of the Czech Republic, CS-379 81 Tebo, Czech Republic

Abstract:	Changes in fluorescence parameters observed during irradiation of the Scenedesmus cells showed that photosystem 2 (PS2) photoinactivation in cells treated with phenolic PS2 inhibitor 2-bromo-3-methyl-6-isopropyl-4-nitrophenol (BNT) was significantly accelerated in comparison with control and DCMU-treated cells. Moreover, a negligible difference in the rate of PS2 photoinactivation in the absence and presence of chloramphenicol indicated that both DCMU and BNT blocked the PS2 repair process.

Keywords:	algae 2-bromo-3-methyl-6-isopropyl-4-nitrophenol chloramphenicol chlorophyll fluorescence induction 3-(3,4-dichlorophenyl)-1,1-dimethylurea
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