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Co-regulatory role of Microcystis colony cell volume and compactness in buoyancy during the growth stage

文献类型：期刊论文

作者Wu, Huaming1,3; Yang, Tiantian1,3; Wang, Chunbo3; Tian, Cuicui3; Donde, Oscar Omondi2; Xiao, Bangding3; Wu, Xingqiang3
刊名ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
出版日期2020-07-10
页码11
ISSN号0944-1344
关键词Cyanobacterial bloom Microcystis colony Floating velocity (FV) Physiological status Extracellular polysaccharides (EPS)
DOI10.1007/s11356-020-08250-0
通讯作者Wu, Xingqiang(xqwu@ihb.ac.cn)
英文摘要The buoyancy of Microcystis colonies determines the occurrence and dominance of bloom on the water surface. Besides the cell density regulation and the formation of larger size aggregates, increases in cell volume per colony (V-cell) and the colony's compactness (i.e., volume ratio of cells to the colony, VR) may promote Microcystis colony buoyancy. Yet only a few studies have studied the relationship between the internal structure variation of colonies and their buoyancy, and the co-regulatory role of V-cell and VR of Microcystis colonies in the floating velocity (FV) remains largely unexplored. In the present study, we optimized a method for measuring the compactness of Microcystis colonies based on the linear relationship between total V(cell )and chlorophyll a. Different relationships between the VRs and FVs were observed with different colony size and V-cell range groups. Both field and laboratory experiments showed that FV/(D-50, median diameter)(2) had a significant linear relationship with VR, indicating that the cell density and extracellular polysaccharides were unchanged over a short time period and could be estimated via the slope and intercept of a fitted line. We also constructed a functional relationship between FV, VR, and V-cell and found that high VR and V-cell can promote Microcystis buoyancy. This means that increasing cell compactness or V(cell )may be an active regulation strategy for Microcystis colonies to promote buoyancy. Therefore, quantifying the internal structure of Microcystis colonies is strongly recommended for the assessment of Microcystis bloom development and their management.
WOS关键词CONTROLLING EXTRACELLULAR POLYSACCHARIDES ; CYANOBACTERIUM MICROCYSTIS ; VERTICAL-DISTRIBUTION ; GAS VESICLES ; LAKE TAIHU ; AERUGINOSA ; BLOOMS ; TEMPERATURE ; DENSITY ; PHYTOPLANKTON
资助项目National Natural Science Foundation of China[31870450] ; National Natural Science Foundation of China[31670465] ; National Natural Science Foundation of China[31800390] ; Knowledge Innovation Program of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2018373]
WOS研究方向Environmental Sciences & Ecology
语种英语
出版者SPRINGER HEIDELBERG
WOS记录号WOS:000547236000014
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Knowledge Innovation Program of the Chinese Academy of Sciences ; Knowledge Innovation Program of the Chinese Academy of Sciences ; Knowledge Innovation Program of the Chinese Academy of Sciences ; Knowledge Innovation Program of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Knowledge Innovation Program of the Chinese Academy of Sciences ; Knowledge Innovation Program of the Chinese Academy of Sciences ; Knowledge Innovation Program of the Chinese Academy of Sciences ; Knowledge Innovation Program of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Knowledge Innovation Program of the Chinese Academy of Sciences ; Knowledge Innovation Program of the Chinese Academy of Sciences ; Knowledge Innovation Program of the Chinese Academy of Sciences ; Knowledge Innovation Program of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Knowledge Innovation Program of the Chinese Academy of Sciences ; Knowledge Innovation Program of the Chinese Academy of Sciences ; Knowledge Innovation Program of the Chinese Academy of Sciences ; Knowledge Innovation Program of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences
源URL[http://ir.ihb.ac.cn/handle/342005/38513]  
专题水生生物研究所_水环境工程研究中心_期刊论文
通讯作者Wu, Xingqiang
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Egerton Univ, Dept Environm Sci, Egerton Nakuru 53620115, Kenya
3.Chinese Acad Sci, Key Lab Algal Biol, Inst Hydrobiol, Wuhan 430072, Peoples R China
推荐引用方式
GB/T 7714		 Wu, Huaming,Yang, Tiantian,Wang, Chunbo,et al. Co-regulatory role of Microcystis colony cell volume and compactness in buoyancy during the growth stage[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2020:11.
APA Wu, Huaming.,Yang, Tiantian.,Wang, Chunbo.,Tian, Cuicui.,Donde, Oscar Omondi.,...&Wu, Xingqiang.(2020).Co-regulatory role of Microcystis colony cell volume and compactness in buoyancy during the growth stage.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,11.
MLA Wu, Huaming,et al."Co-regulatory role of Microcystis colony cell volume and compactness in buoyancy during the growth stage".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2020):11.

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来源：水生生物研究所

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