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Allelopathic mechanism of pyrogallol to Microcystis aeruginosa PCC7806 (Cyanobacteria): From views of gene expression and antioxidant system
Shao, Jihai1,2,3; Wu, Zhongxing1; Yu, Gongliang1; Peng, Xin1; Li, Renhui1; Li, RH, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2009-05-01
Source PublicationCHEMOSPHERE
ISSN0045-6535
Volume75Issue:7Pages:924-928
AbstractPyrogallol 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.; 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.
SubtypeArticle
KeywordPyrogallol Microcystis Aeruginosa Allelopathy Mechanism
Department[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
Subject AreaEnvironmental Sciences
DOI10.1016/j.chemosphere.2009.01.021
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Funding OrganizationFrontier Research Project of the Chinese Academy of Sciences ; Frontier Research Project of the Chinese Academy of Sciences ; Frontier Research Project of the Chinese Academy of Sciences ; Frontier Research Project of the Chinese Academy of Sciences
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000266144500014
WOS KeywordBLUE-GREEN-ALGAE ; SYNECHOCYSTIS SP PCC-6803 ; PLANT-PRODUCING PHENOLS ; ESCHERICHIA-COLI ; MYRIOPHYLLUM-SPICATUM ; OXIDATIVE STRESS ; PHOTOSYSTEM-II ; OXYGEN ; GROWTH ; TOXICITY
Funding OrganizationFrontier Research Project of the Chinese Academy of Sciences ; Frontier Research Project of the Chinese Academy of Sciences ; Frontier Research Project of the Chinese Academy of Sciences ; Frontier Research Project of the Chinese Academy of Sciences
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Cited Times:97[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/7742
Collection期刊论文
Corresponding AuthorLi, RH, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
Affiliation1.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
GB/T 7714
Shao, Jihai,Wu, Zhongxing,Yu, Gongliang,et al. Allelopathic mechanism of pyrogallol to Microcystis aeruginosa PCC7806 (Cyanobacteria): From views of gene expression and antioxidant system[J]. CHEMOSPHERE,2009,75(7):924-928.
APA Shao, Jihai,Wu, Zhongxing,Yu, Gongliang,Peng, Xin,Li, Renhui,&Li, RH, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China.(2009).Allelopathic mechanism of pyrogallol to Microcystis aeruginosa PCC7806 (Cyanobacteria): From views of gene expression and antioxidant system.CHEMOSPHERE,75(7),924-928.
MLA Shao, Jihai,et al."Allelopathic mechanism of pyrogallol to Microcystis aeruginosa PCC7806 (Cyanobacteria): From views of gene expression and antioxidant system".CHEMOSPHERE 75.7(2009):924-928.
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