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学科主题: Environmental Sciences
题名: Allelopathic mechanism of pyrogallol to Microcystis aeruginosa PCC7806 (Cyanobacteria): From views of gene expression and antioxidant system
作者: Shao, Jihai1, 2, 3; Wu, Zhongxing1; Yu, Gongliang1; Peng, Xin1; Li, Renhui1
通讯作者: Li, RH, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
关键词: Pyrogallol ; Microcystis aeruginosa ; Allelopathy ; Mechanism
刊名: CHEMOSPHERE
发表日期: 2009-05-01
DOI: 10.1016/j.chemosphere.2009.01.021
卷: 75, 期:7, 页:924-928
收录类别: SCI
文章类型: Article
部门归属: [Shao, Jihai; Wu, Zhongxing; Yu, Gongliang; Peng, Xin; Li, Renhui] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China; [Shao, Jihai] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China; [Shao, Jihai] Hunan Agr Univ, Resources & Environm Coll, Changsha 410128, Hunan, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
资助者: Frontier Research Project of the Chinese Academy of Sciences
类目[WOS]: Environmental Sciences
研究领域[WOS]: Environmental Sciences & Ecology
摘要: Pyrogallol is a potent allelochemical on Microcystis aeruginosa, but its allelopathic mechanism is not fully known. In order to explore this mechanism, gene expressions for prx, mcyB, psbA, recA, grpE, fabZ under pyrogallol stress were studied, and activities of the main antioxidant enzymes were also measured. The results showed that expression of grpE and recA showed no significant change under pyrogallol stress, while psbA and mcyB were up-regulated at 4 mg L-1. Both prx and fabZ were up-regulated even under exposure to 1 mg L-1 pyrogallol concentration. The activities of superoxide dismutase (SOD) and catalase (CAT) were enhanced under pyrogallol stress. Levels of malodialdehyde (MDA) at 2 and 4 mg L-1 pyrogallol were significantly higher than those of the controls. It was concluded that oxidant damage is an important mechanism for the allelopathic effect of pyrogallol on M. aeruginosa. (c) 2009 Elsevier Ltd. All rights reserved.
英文摘要: Pyrogallol is a potent allelochemical on Microcystis aeruginosa, but its allelopathic mechanism is not fully known. In order to explore this mechanism, gene expressions for prx, mcyB, psbA, recA, grpE, fabZ under pyrogallol stress were studied, and activities of the main antioxidant enzymes were also measured. The results showed that expression of grpE and recA showed no significant change under pyrogallol stress, while psbA and mcyB were up-regulated at 4 mg L(-1). Both prx and fabZ were up-regulated even under exposure to 1 mg L(-1) pyrogallol concentration. The activities of superoxide dismutase (SOD) and catalase (CAT) were enhanced under pyrogallol stress. Levels of malodialdehyde (MDA) at 2 and 4 mg L(-1) pyrogallol were significantly higher than those of the controls. It was concluded that oxidant damage is an important mechanism for the allelopathic effect of pyrogallol on M. aeruginosa. (c) 2009 Elsevier Ltd. All rights reserved.
关键词[WOS]: BLUE-GREEN-ALGAE ; SYNECHOCYSTIS SP PCC-6803 ; PLANT-PRODUCING PHENOLS ; ESCHERICHIA-COLI ; MYRIOPHYLLUM-SPICATUM ; OXIDATIVE STRESS ; PHOTOSYSTEM-II ; OXYGEN ; GROWTH ; TOXICITY
语种: 英语
WOS记录号: WOS:000266144500014
ISSN号: 0045-6535
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/7742
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
3.Hunan Agr Univ, Resources & Environm Coll, Changsha 410128, Hunan, Peoples R China

Recommended Citation:
Shao, Jihai; Wu, Zhongxing; Yu, Gongliang; Peng, Xin; Li, Renhui.Allelopathic mechanism of pyrogallol to Microcystis aeruginosa PCC7806 (Cyanobacteria): From views of gene expression and antioxidant system,CHEMOSPHERE,2009,75(7):924-928
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