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Experimental evidence for the role of heterotrophic bacteria in the formation of Microcystis colonies
Wang, Wenjing1,2; Shen, Hong1; Shi, Pengling3; Chen, Jun1; Ni, Leyi1; Xie, Ping1
2016-04-01
Source PublicationJOURNAL OF APPLIED PHYCOLOGY
ISSN0921-8971
Volume28Issue:2Pages:1111-1123
AbstractMicrocystis, a genus of cyanobacteria that is dominant in eutrophic lakes, occurs mainly as colonial morphs under natural conditions but as single cells in laboratory cultures. Recent studies have suggested that Microcystis-bacteria interactions significantly influence Microcystis morphology, but the underlying mechanism remains unclear. In this study, a total of 48 strains of heterotrophic bacteria were purified from Microcystis mucilage. Five bacteria, Aeromonas veronii, Enterobacter aerogenes, Exiguobacterium acetylicum, Bacillus cereus and Shewanella putrefaciens, can induce unicellular Microcystis to form colonies. Heterotrophic bacteria stimulated Microcystis growth and induced the production of extracellular polymeric substances in coculture treatments. Extracellular polymeric substances, such as extracellular polysaccharides (EPS), were responsible for the mucilage formation in colonial Microcystis. We analysed extracellular metabolic compounds produced by Microcystis aeruginosa and Microcystis wesenbergii using gas chromatography mass spectrometry. Filtrate extracts from coculture treatments indicated that some compounds, such as 2-dodecen-1-yl(-) succinic anhydride and benzoic acid, 2,3-bis[(trimethylsilyl)oxy]-, trimethylsilyl ester, might play a significant role in colonial M. aeruginosa or M. wesenbergii formation. Our data suggested that the interaction of Microcystis and heterotrophic bacteria was crucial for the formation of Microcystis colony and outbreak of Microcystis blooms.
SubtypeArticle
KeywordMicrocystis Associated Bacteria Colony Formation Extracellular Polysaccharides Metabolic Compounds
DOI10.1007/s10811-015-0659-5
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Funding OrganizationNational Natural Science Foundation of China(31400407) ; National Natural Science Foundation of China(31400407) ; National High Technology Research and Development Program of China(2012ZX07105-004) ; National High Technology Research and Development Program of China(2012ZX07105-004) ; State Key Laboratory of freshwater ecology and biotechnology(2014FB15 ; State Key Laboratory of freshwater ecology and biotechnology(2014FB15 ; 2014FBZ02) ; 2014FBZ02) ; National Natural Science Foundation of China(31400407) ; National Natural Science Foundation of China(31400407) ; National High Technology Research and Development Program of China(2012ZX07105-004) ; National High Technology Research and Development Program of China(2012ZX07105-004) ; State Key Laboratory of freshwater ecology and biotechnology(2014FB15 ; State Key Laboratory of freshwater ecology and biotechnology(2014FB15 ; 2014FBZ02) ; 2014FBZ02)
Language英语
WOS Research AreaBiotechnology & Applied Microbiology ; Marine & Freshwater Biology
WOS SubjectBiotechnology & Applied Microbiology ; Marine & Freshwater Biology
WOS KeywordEXTRACELLULAR POLYMERIC SUBSTANCES ; CYANOBACTERIAL BLOOMS ; PHYSIOLOGICAL-CHANGES ; SPP. CYANOBACTERIA ; LAKE TAIHU ; IN-VITRO ; AERUGINOSA ; GROWTH ; PHYTOPLANKTON ; ULTRASTRUCTURE
WOS IDWOS:000372256900039
Funding OrganizationNational Natural Science Foundation of China(31400407) ; National Natural Science Foundation of China(31400407) ; National High Technology Research and Development Program of China(2012ZX07105-004) ; National High Technology Research and Development Program of China(2012ZX07105-004) ; State Key Laboratory of freshwater ecology and biotechnology(2014FB15 ; State Key Laboratory of freshwater ecology and biotechnology(2014FB15 ; 2014FBZ02) ; 2014FBZ02) ; National Natural Science Foundation of China(31400407) ; National Natural Science Foundation of China(31400407) ; National High Technology Research and Development Program of China(2012ZX07105-004) ; National High Technology Research and Development Program of China(2012ZX07105-004) ; State Key Laboratory of freshwater ecology and biotechnology(2014FB15 ; State Key Laboratory of freshwater ecology and biotechnology(2014FB15 ; 2014FBZ02) ; 2014FBZ02)
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/27761
Collection淡水生态学研究中心
Affiliation1.Chinese Acad Sci, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol China, Inst Hydrobiol, Wuhan, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.Huazhong Agr Univ, Coll Fisheries, Wuhan, Peoples R China
Recommended Citation
GB/T 7714
Wang, Wenjing,Shen, Hong,Shi, Pengling,et al. Experimental evidence for the role of heterotrophic bacteria in the formation of Microcystis colonies[J]. JOURNAL OF APPLIED PHYCOLOGY,2016,28(2):1111-1123.
APA Wang, Wenjing,Shen, Hong,Shi, Pengling,Chen, Jun,Ni, Leyi,&Xie, Ping.(2016).Experimental evidence for the role of heterotrophic bacteria in the formation of Microcystis colonies.JOURNAL OF APPLIED PHYCOLOGY,28(2),1111-1123.
MLA Wang, Wenjing,et al."Experimental evidence for the role of heterotrophic bacteria in the formation of Microcystis colonies".JOURNAL OF APPLIED PHYCOLOGY 28.2(2016):1111-1123.
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