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Physiological responses of Microcystis aeruginosa NIES-843 (cyanobacterium) under the stress of chitosan modified kaolinite (CMK) loading
Shao, Jihai2; Wang, Zhongjie1; Liu, Yang1; Liu, Hong2; Peng, Liang2; Wei, Xiangdong2; Lei, Ming2; Li, Renhui1; Li, RH (reprint author), Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China.
2012-04-01
Source PublicationECOTOXICOLOGY
ISSN0963-9292
Volume21Issue:3Pages:698-704
AbstractFlocculation with clays is a promising and environmentally friendly way to remove algal blooms. Physiological responses of Microcystis aeruginosa NIES-843 under the stress of chitosan modified kaolinite (CMK) loading were first reported in this paper. Compared with the control, the contents of chlorophyll a (Chl a) and carotenoids showed no significant difference at a CMK loading of 40 mg/l, but the phycocyanin content was significant lower than the control at this loading level. The contents of Chl a, carotenoids, phycocyanin and allophycocyanin were all significantly lower than the control at 80 and 160 mg/l CMK, and the leakage of phycobilins occurred at these two loading levels suggesting that flocculation with CMK could cause the damage of cellular membranes. The activities of extracellular alkaline phosphatase activity (E-APA), superoxide dismutase (SOD) and catalase (CAT) were all dramatically boosted under the stress of CMK loading. The changes of cellular dehydrogenase activity exhibited the same trends as of Chl a and carotenoids, and it decreased to the levels of lower than detectable limits on 12 and 8th day at a CMK loading of 80 and 160 mg/l, respectively. These results indicated that flocculation with CMK could cause cell mortality of M. aeruginosa.; Flocculation with clays is a promising and environmentally friendly way to remove algal blooms. Physiological responses of Microcystis aeruginosa NIES-843 under the stress of chitosan modified kaolinite (CMK) loading were first reported in this paper. Compared with the control, the contents of chlorophyll a (Chl a) and carotenoids showed no significant difference at a CMK loading of 40 mg/l, but the phycocyanin content was significant lower than the control at this loading level. The contents of Chl a, carotenoids, phycocyanin and allophycocyanin were all significantly lower than the control at 80 and 160 mg/l CMK, and the leakage of phycobilins occurred at these two loading levels suggesting that flocculation with CMK could cause the damage of cellular membranes. The activities of extracellular alkaline phosphatase activity (E-APA), superoxide dismutase (SOD) and catalase (CAT) were all dramatically boosted under the stress of CMK loading. The changes of cellular dehydrogenase activity exhibited the same trends as of Chl a and carotenoids, and it decreased to the levels of lower than detectable limits on 12 and 8th day at a CMK loading of 80 and 160 mg/l, respectively. These results indicated that flocculation with CMK could cause cell mortality of M. aeruginosa.
SubtypeArticle
KeywordPhysiological Responses Microcystis Aeruginosa Chitosan Modified Kaolinite
Department[Wang, Zhongjie; Liu, Yang; Li, Renhui] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China; [Shao, Jihai; Liu, Hong; Peng, Liang; Wei, Xiangdong; Lei, Ming] Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Hunan, Peoples R China
DOI10.1007/s10646-011-0828-5
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Funding OrganizationNational Water Science and Technology Projects[2009ZX07101-013-02]; Hunan Provincial Natural Science Foundation of China[10JJ6045]; National Natural Science Foundation of China[21107024] ; National Water Science and Technology Projects[2009ZX07101-013-02]; Hunan Provincial Natural Science Foundation of China[10JJ6045]; National Natural Science Foundation of China[21107024] ; National Water Science and Technology Projects[2009ZX07101-013-02]; Hunan Provincial Natural Science Foundation of China[10JJ6045]; National Natural Science Foundation of China[21107024] ; National Water Science and Technology Projects[2009ZX07101-013-02]; Hunan Provincial Natural Science Foundation of China[10JJ6045]; National Natural Science Foundation of China[21107024]
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology ; Toxicology
WOS SubjectEcology ; Environmental Sciences ; Toxicology
WOS IDWOS:000302065400008
WOS KeywordLOCAL SOILS ; OXIDATIVE STRESS ; REMOVAL ; BLOOMS ; PHOTOSYNTHESIS ; CULTURES
Funding OrganizationNational Water Science and Technology Projects[2009ZX07101-013-02]; Hunan Provincial Natural Science Foundation of China[10JJ6045]; National Natural Science Foundation of China[21107024] ; National Water Science and Technology Projects[2009ZX07101-013-02]; Hunan Provincial Natural Science Foundation of China[10JJ6045]; National Natural Science Foundation of China[21107024] ; National Water Science and Technology Projects[2009ZX07101-013-02]; Hunan Provincial Natural Science Foundation of China[10JJ6045]; National Natural Science Foundation of China[21107024] ; National Water Science and Technology Projects[2009ZX07101-013-02]; Hunan Provincial Natural Science Foundation of China[10JJ6045]; National Natural Science Foundation of China[21107024]
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/17051
Collection藻类生物学及应用研究中心_期刊论文
Corresponding AuthorLi, RH (reprint author), Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China.
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2.Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Hunan, Peoples R China
Recommended Citation
GB/T 7714
Shao, Jihai,Wang, Zhongjie,Liu, Yang,et al. Physiological responses of Microcystis aeruginosa NIES-843 (cyanobacterium) under the stress of chitosan modified kaolinite (CMK) loading[J]. ECOTOXICOLOGY,2012,21(3):698-704.
APA Shao, Jihai.,Wang, Zhongjie.,Liu, Yang.,Liu, Hong.,Peng, Liang.,...&Li, RH .(2012).Physiological responses of Microcystis aeruginosa NIES-843 (cyanobacterium) under the stress of chitosan modified kaolinite (CMK) loading.ECOTOXICOLOGY,21(3),698-704.
MLA Shao, Jihai,et al."Physiological responses of Microcystis aeruginosa NIES-843 (cyanobacterium) under the stress of chitosan modified kaolinite (CMK) loading".ECOTOXICOLOGY 21.3(2012):698-704.
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