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Towards clarification of the inhibitory mechanism of wheat bran leachate on Microcystis aeruginosa NIES-843 (cyanobacteria): physiological responses
Shao, Jihai; Yu, Gongliang; Wang, Zhongjie; Wu, Zhongxing; Peng, Xin; Li, Renhui; Li, RH, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2010
Source PublicationECOTOXICOLOGY
ISSN0963-9292
Volume19Issue:8Pages:1634-1641
AbstractWheat bran leachate (WBL) has been shown to have an inhibitory effect on Microcystis aeruginosa in this study. In order to explore the inhibitory mechanism of WBL on M. aeruginosa, physiological responses of M. aeruginosa NIES-843 under the WBL stress were studied. The expressions of six important genes related to the D1 protein of photosynthetic processes (psbA), synthesis of microcystins (mcyB), antioxidant protein peroxiredoxin (prx), synthesis of fatty acid (fabZ) and the repair of biological macromolecules (recA, grpE) were studied. Under the WBL stress, no significant change was found in expressions of both grpE and recA, but expressions of psbA, fabZ and prx were shown to be down-regulated, and slight up-regulated expression was found in mcyB. It was shown that oxygen evolution of M. aeruginosa NIES-843 was significantly depressed, and intracellular ATP contents became lower, after exposure to WBL. Similarly, maximum electron transport rates of photosynthetic activities decreased significantly, but intracellular reactive oxygen species levels boosted dramatically under the WBL stress, and cell lysis was observed. Therefore, it is suggested that photosynthetic systems and membranes were the potential targets of toxicity of WBL on M. aeruginosa, and the oxidative damage is an important mechanism explaining the inhibitory effect of WBL on M. aeruginosa.
KeywordWheat Bran Leachate Microcystis Gene Expression Photosynthesis
Department[Shao, Jihai; Yu, Gongliang; Wang, Zhongjie; Wu, Zhongxing; Peng, Xin; Li, Renhui] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China; [Shao, Jihai] Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Hunan, Peoples R China; [Shao, Jihai; Wang, Zhongjie] Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
Subject AreaEcology ; Environmental Sciences ; Toxicology
Funding OrganizationNational Natural Science Foundation of China (NSFC) [30821140542]; National Water Science and Technology Projects [2009ZX07101-013-02, 2008ZX07105-006]; Chinese Academy of Sciences [082303-1-501] ; National Natural Science Foundation of China (NSFC) [30821140542]; National Water Science and Technology Projects [2009ZX07101-013-02, 2008ZX07105-006]; Chinese Academy of Sciences [082303-1-501] ; National Natural Science Foundation of China (NSFC) [30821140542]; National Water Science and Technology Projects [2009ZX07101-013-02, 2008ZX07105-006]; Chinese Academy of Sciences [082303-1-501] ; National Natural Science Foundation of China (NSFC) [30821140542]; National Water Science and Technology Projects [2009ZX07101-013-02, 2008ZX07105-006]; Chinese Academy of Sciences [082303-1-501]
Indexed BySCI
Language英语
WOS IDWOS:000284363800027
Funding OrganizationNational Natural Science Foundation of China (NSFC) [30821140542]; National Water Science and Technology Projects [2009ZX07101-013-02, 2008ZX07105-006]; Chinese Academy of Sciences [082303-1-501] ; National Natural Science Foundation of China (NSFC) [30821140542]; National Water Science and Technology Projects [2009ZX07101-013-02, 2008ZX07105-006]; Chinese Academy of Sciences [082303-1-501] ; National Natural Science Foundation of China (NSFC) [30821140542]; National Water Science and Technology Projects [2009ZX07101-013-02, 2008ZX07105-006]; Chinese Academy of Sciences [082303-1-501] ; National Natural Science Foundation of China (NSFC) [30821140542]; National Water Science and Technology Projects [2009ZX07101-013-02, 2008ZX07105-006]; Chinese Academy of Sciences [082303-1-501]
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/13757
Collection藻类生物学及应用研究中心_期刊论文
Corresponding AuthorLi, RH, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
Recommended Citation
GB/T 7714
Shao, Jihai,Yu, Gongliang,Wang, Zhongjie,et al. Towards clarification of the inhibitory mechanism of wheat bran leachate on Microcystis aeruginosa NIES-843 (cyanobacteria): physiological responses[J]. ECOTOXICOLOGY,2010,19(8):1634-1641.
APA Shao, Jihai.,Yu, Gongliang.,Wang, Zhongjie.,Wu, Zhongxing.,Peng, Xin.,...&Li, RH, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China.(2010).Towards clarification of the inhibitory mechanism of wheat bran leachate on Microcystis aeruginosa NIES-843 (cyanobacteria): physiological responses.ECOTOXICOLOGY,19(8),1634-1641.
MLA Shao, Jihai,et al."Towards clarification of the inhibitory mechanism of wheat bran leachate on Microcystis aeruginosa NIES-843 (cyanobacteria): physiological responses".ECOTOXICOLOGY 19.8(2010):1634-1641.
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