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Strong turbulence benefits toxic and colonial cyanobacteria in water: A potential way of climate change impact on the expansion of Harmful Algal Blooms

文献类型：期刊论文

作者Liu, Mengzi1; Ma, Jianrong2; Kang, Li1; Wei, Yanyan3; He, Qiang1; Hu, Xuebin1; Li, Hong1
刊名SCIENCE OF THE TOTAL ENVIRONMENT
出版日期2019-06-20
卷号670页码:613-622
关键词Typhoon Turbulence Phytoplankton Microcystis Microcystins
ISSN号0048-9697
DOI10.1016/j.scitotenv.2019.03.253
通讯作者Li, Hong(hongli@cqu.edu.cn)
英文摘要Extreme natural events such as typhoons can amplify the effect of hydrodynamics on the lake ecosystems. Here we presented data on the effect of typhoons on algal cell size based on field observation. Then turbulence simulation systems were used to decipher the response of natural phytoplankton communities to a range of turbulence regimes (linked to typhoon-induced turbulence intensity) under laboratory conditions. Turbulence intensities of 6.17 x 10(-3), 1.10 x 10(-2) and 1.80 x 10(-2) m(2)/s(3) benefited algal growth and triggered abrupt switches from unicellular Chlorella dominated to colonial Microcystis dominance, and the abundance of colonial algae depended on the turbulence intensity. Under the influence of elevated turbulence. Microcystis dominated biomass increased by 2.60-6.58 times compared with that of Chlorella. At a given phytoplankton density and community composition, we observed a significant increase in extracellular microcystins (MCs) and a 47.5-fold increase in intracellular MCs with intensified turbulent mixing, suggesting that the damage of algal cells con-comitantly the stimulation of toxin-producing Microcystis. Our results confirmed that the formation of large colonial algal cells, enhancement of the succession of algal species, and most importantly, the induction of toxin-producing Microcystis, were the active adaption strategy when phytoplankton were impacted by strong 2 turbulence. The result implies that the ongoing climates changes and typhoon events are likely to contribute to undesirable outcomes concerning phytoplankton populations. (C) 2019 Elsevier B.V. All rights reserved.
资助项目Natural Science Foundation of China[NSFC 51609024] ; Natural Science Foundation of China[41877472] ; Natural Science Foundation of China[41601537] ; Natural Science Foundation of China[41401574] ; Fundamental Research Funds for the Central Universities[2018CDXYCH0014] ; Chongqing Research Program of Basic Research and Frontier Technology[cstc2015shms-ztzx2004] ; National Key Research and Development program in China[2017YFC0404700] ; Key Research Program of Frontier Sciences, CAS[QYZDJSSWDQC008] ; Chongqing Postdoctoral Science Foundation[Xm2016070]
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000464681800061
出版者ELSEVIER SCIENCE BV
源URL[http://119.78.100.138/handle/2HOD01W0/7761]  
专题水质生物转化研究中心
通讯作者Li, Hong
作者单位1.Chongqing Univ, Minist Educ, Key Lab Ecoenvironm Three Gorges Reg, Chongqing 400044, Peoples R China
2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, CAS Key Lab Reservoir Environm, Chongqing 400714, Peoples R China
3.Guangxi Univ, Coll Agr, Cultivat Base Guangxi Key Lab Agroenvironm & Agro, Nanning 530004, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Mengzi,Ma, Jianrong,Kang, Li,et al. Strong turbulence benefits toxic and colonial cyanobacteria in water: A potential way of climate change impact on the expansion of Harmful Algal Blooms[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,670:613-622.
APA Liu, Mengzi.,Ma, Jianrong.,Kang, Li.,Wei, Yanyan.,He, Qiang.,...&Li, Hong.(2019).Strong turbulence benefits toxic and colonial cyanobacteria in water: A potential way of climate change impact on the expansion of Harmful Algal Blooms.SCIENCE OF THE TOTAL ENVIRONMENT,670,613-622.
MLA Liu, Mengzi,et al."Strong turbulence benefits toxic and colonial cyanobacteria in water: A potential way of climate change impact on the expansion of Harmful Algal Blooms".SCIENCE OF THE TOTAL ENVIRONMENT 670(2019):613-622.

入库方式： OAI收割

来源：重庆绿色智能技术研究院

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