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Physiological variations of bloom-forming Microcystis (Cyanophyceae) related to colony size changes during blooms
Li, Yinxia1,2; Li, Dunhai1; Li, DH (reprint author), Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China.
2012-11-01
Source PublicationPHYCOLOGIA
ISSN0031-8884
Volume51Issue:6Pages:599-603
AbstractMicrocystis has been intensively studied, but previous studies using laboratory cultures did not explain why colony size differed widely and frequently during natural blooms. This study was designed to unravel the mechanism for changes in biomass that accompany different sized colonies and to establish the basis for physiological variation. Monitoring colonies during blooms indicated that biomass variations for different sized colonies were associated with the frequent alteration of environment factors. Large-sized colonies had a higher carotenoid content (F = 10.74, P = 0.029) and phycocyanin content (F = 8.28. P = 0.041) during July and August; small-sized colonies had a higher total carbohydrate content (F = 9.43, P = 0.033) and higher nitrate reductase activities (P < 0.01, ANOVA). No significant difference was observed for alkaline phosphatase activities among different sized colonies (P < 0.05, ANOVA). We proposed that some key environmental factors combined with physiological variations in different sized colonies resulted in colony size succession. The selection of colony size may be an adaptive mechanism that promotes the formation, dominance and persistence of cyanobacterial blooms in eutrophic water bodies.; Microcystis has been intensively studied, but previous studies using laboratory cultures did not explain why colony size differed widely and frequently during natural blooms. This study was designed to unravel the mechanism for changes in biomass that accompany different sized colonies and to establish the basis for physiological variation. Monitoring colonies during blooms indicated that biomass variations for different sized colonies were associated with the frequent alteration of environment factors. Large-sized colonies had a higher carotenoid content (F = 10.74, P = 0.029) and phycocyanin content (F = 8.28. P = 0.041) during July and August; small-sized colonies had a higher total carbohydrate content (F = 9.43, P = 0.033) and higher nitrate reductase activities (P < 0.01, ANOVA). No significant difference was observed for alkaline phosphatase activities among different sized colonies (P < 0.05, ANOVA). We proposed that some key environmental factors combined with physiological variations in different sized colonies resulted in colony size succession. The selection of colony size may be an adaptive mechanism that promotes the formation, dominance and persistence of cyanobacterial blooms in eutrophic water bodies.
SubtypeArticle
KeywordCarbohydrate Carotenoid Microcystis Colonies Nitrate Reductase Phycocyanin
Department[Li, Yinxia; Li, Dunhai] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China; [Li, Yinxia] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
DOI10.2216/11-126.1
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Funding OrganizationNational Natural Science Foundation of China [40971249]; National Basic Research and Development Plan [2008CB418002]; Major Science and Technology Program for Water Pollution Control and Treatment [2008ZX07103-004, 2009ZX07104-005] ; National Natural Science Foundation of China [40971249]; National Basic Research and Development Plan [2008CB418002]; Major Science and Technology Program for Water Pollution Control and Treatment [2008ZX07103-004, 2009ZX07104-005] ; National Natural Science Foundation of China [40971249]; National Basic Research and Development Plan [2008CB418002]; Major Science and Technology Program for Water Pollution Control and Treatment [2008ZX07103-004, 2009ZX07104-005] ; National Natural Science Foundation of China [40971249]; National Basic Research and Development Plan [2008CB418002]; Major Science and Technology Program for Water Pollution Control and Treatment [2008ZX07103-004, 2009ZX07104-005]
Indexed BySCI
Language英语
WOS Research AreaPlant Sciences ; Marine & Freshwater Biology
WOS SubjectPlant Sciences ; Marine & Freshwater Biology
WOS IDWOS:000311262100001
WOS KeywordHARMFUL ALGAL BLOOMS ; BLUE-GREEN-ALGA ; NITRATE ASSIMILATION ; BUOYANCY REGULATION ; AERUGINOSA KUTZ ; BENFORDS LAW ; LAKE ; NUTRIENT ; CYANOBACTERIA ; CONSEQUENCES
Funding OrganizationNational Natural Science Foundation of China [40971249]; National Basic Research and Development Plan [2008CB418002]; Major Science and Technology Program for Water Pollution Control and Treatment [2008ZX07103-004, 2009ZX07104-005] ; National Natural Science Foundation of China [40971249]; National Basic Research and Development Plan [2008CB418002]; Major Science and Technology Program for Water Pollution Control and Treatment [2008ZX07103-004, 2009ZX07104-005] ; National Natural Science Foundation of China [40971249]; National Basic Research and Development Plan [2008CB418002]; Major Science and Technology Program for Water Pollution Control and Treatment [2008ZX07103-004, 2009ZX07104-005] ; National Natural Science Foundation of China [40971249]; National Basic Research and Development Plan [2008CB418002]; Major Science and Technology Program for Water Pollution Control and Treatment [2008ZX07103-004, 2009ZX07104-005]
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Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/17244
Collection水环境工程研究中心_期刊论文
Corresponding AuthorLi, DH (reprint author), 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 100049, Peoples R China
Recommended Citation
GB/T 7714
Li, Yinxia,Li, Dunhai,Li, DH . Physiological variations of bloom-forming Microcystis (Cyanophyceae) related to colony size changes during blooms[J]. PHYCOLOGIA,2012,51(6):599-603.
APA Li, Yinxia,Li, Dunhai,&Li, DH .(2012).Physiological variations of bloom-forming Microcystis (Cyanophyceae) related to colony size changes during blooms.PHYCOLOGIA,51(6),599-603.
MLA Li, Yinxia,et al."Physiological variations of bloom-forming Microcystis (Cyanophyceae) related to colony size changes during blooms".PHYCOLOGIA 51.6(2012):599-603.
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