Flexibility of Microcystis Overwintering Strategy in Response to Winter Temperatures

Microcystis is one of the most common bloom-forming cyanobacteria in freshwater ecosystems throughout the world. However, the underlying life history mechanism and distinct temporal dynamics (inter- and intra-annual) of Microcystis populations in different geogr...

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Autores principales:	Pei Cai, Qijia Cai, Feng He, Yuhong Huang, Cuicui Tian, Xingqiang Wu, Chunbo Wang, Bangding Xiao
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	<i>Microcystis</i> overwintering proliferation rate winter blooms global warming Biology (General) QH301-705.5
Acceso en línea:	https://doaj.org/article/6749e2718fd745debfcf8dbcfc7f12be
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id	oai:doaj.org-article:6749e2718fd745debfcf8dbcfc7f12be
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spelling	oai:doaj.org-article:6749e2718fd745debfcf8dbcfc7f12be2021-11-25T18:24:48ZFlexibility of <i>Microcystis</i> Overwintering Strategy in Response to Winter Temperatures10.3390/microorganisms91122782076-2607https://doaj.org/article/6749e2718fd745debfcf8dbcfc7f12be2021-11-01T00:00:00Zhttps://www.mdpi.com/2076-2607/9/11/2278https://doaj.org/toc/2076-2607<i>Microcystis</i> is one of the most common bloom-forming cyanobacteria in freshwater ecosystems throughout the world. However, the underlying life history mechanism and distinct temporal dynamics (inter- and intra-annual) of <i>Microcystis</i> populations in different geographical locations and lakes remain unclear but is critical information needed for the development of robust prediction, prevention, and management strategies. Perennial observations indicate that temperature may be the key factor driving differences in the overwintering strategy. This study quantitatively compared the overwintering abilities of <i>Microcystis aeruginosa</i> (Ma) in both the water column and sediments under a gradient of overwintering water temperatures (i.e., 4, 8, and 12 °C) using the death and proliferation rates of Ma. The results show that the dynamics of the <i>Microcystis</i> overwintering strategy were significantly affected by water temperatures. At 4 and 8 °C, Ma mainly overwintered in sediments and disappeared from the water column after exposure to low temperatures for a long duration, although some <i>Microcystis</i> cells can overwinter in the water column for short durations at low temperatures. At 12 °C, most Ma can overwinter in the water column. Rising temperatures promoted the proliferation of pelagic Ma but accelerated the death of benthic Ma. With warmer winter temperatures, pelagic <i>Microcystis</i> might become the primary inoculum sources in the spring. Our study highlights the overwintering strategy flexibility in explaining temporal dynamics differences of <i>Microcystis</i> among in geographical locations and should be considered in the context of global warming.Pei CaiQijia CaiFeng HeYuhong HuangCuicui TianXingqiang WuChunbo WangBangding XiaoMDPI AGarticle<i>Microcystis</i>overwinteringproliferation ratewinter bloomsglobal warmingBiology (General)QH301-705.5ENMicroorganisms, Vol 9, Iss 2278, p 2278 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	<i>Microcystis</i> overwintering proliferation rate winter blooms global warming Biology (General) QH301-705.5
spellingShingle	<i>Microcystis</i> overwintering proliferation rate winter blooms global warming Biology (General) QH301-705.5 Pei Cai Qijia Cai Feng He Yuhong Huang Cuicui Tian Xingqiang Wu Chunbo Wang Bangding Xiao Flexibility of <i>Microcystis</i> Overwintering Strategy in Response to Winter Temperatures
description	<i>Microcystis</i> is one of the most common bloom-forming cyanobacteria in freshwater ecosystems throughout the world. However, the underlying life history mechanism and distinct temporal dynamics (inter- and intra-annual) of <i>Microcystis</i> populations in different geographical locations and lakes remain unclear but is critical information needed for the development of robust prediction, prevention, and management strategies. Perennial observations indicate that temperature may be the key factor driving differences in the overwintering strategy. This study quantitatively compared the overwintering abilities of <i>Microcystis aeruginosa</i> (Ma) in both the water column and sediments under a gradient of overwintering water temperatures (i.e., 4, 8, and 12 °C) using the death and proliferation rates of Ma. The results show that the dynamics of the <i>Microcystis</i> overwintering strategy were significantly affected by water temperatures. At 4 and 8 °C, Ma mainly overwintered in sediments and disappeared from the water column after exposure to low temperatures for a long duration, although some <i>Microcystis</i> cells can overwinter in the water column for short durations at low temperatures. At 12 °C, most Ma can overwinter in the water column. Rising temperatures promoted the proliferation of pelagic Ma but accelerated the death of benthic Ma. With warmer winter temperatures, pelagic <i>Microcystis</i> might become the primary inoculum sources in the spring. Our study highlights the overwintering strategy flexibility in explaining temporal dynamics differences of <i>Microcystis</i> among in geographical locations and should be considered in the context of global warming.
format	article
author	Pei Cai Qijia Cai Feng He Yuhong Huang Cuicui Tian Xingqiang Wu Chunbo Wang Bangding Xiao
author_facet	Pei Cai Qijia Cai Feng He Yuhong Huang Cuicui Tian Xingqiang Wu Chunbo Wang Bangding Xiao
author_sort	Pei Cai
title	Flexibility of <i>Microcystis</i> Overwintering Strategy in Response to Winter Temperatures
title_short	Flexibility of <i>Microcystis</i> Overwintering Strategy in Response to Winter Temperatures
title_full	Flexibility of <i>Microcystis</i> Overwintering Strategy in Response to Winter Temperatures
title_fullStr	Flexibility of <i>Microcystis</i> Overwintering Strategy in Response to Winter Temperatures
title_full_unstemmed	Flexibility of <i>Microcystis</i> Overwintering Strategy in Response to Winter Temperatures
title_sort	flexibility of <i>microcystis</i> overwintering strategy in response to winter temperatures
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/6749e2718fd745debfcf8dbcfc7f12be
work_keys_str_mv	AT peicai flexibilityofimicrocystisioverwinteringstrategyinresponsetowintertemperatures AT qijiacai flexibilityofimicrocystisioverwinteringstrategyinresponsetowintertemperatures AT fenghe flexibilityofimicrocystisioverwinteringstrategyinresponsetowintertemperatures AT yuhonghuang flexibilityofimicrocystisioverwinteringstrategyinresponsetowintertemperatures AT cuicuitian flexibilityofimicrocystisioverwinteringstrategyinresponsetowintertemperatures AT xingqiangwu flexibilityofimicrocystisioverwinteringstrategyinresponsetowintertemperatures AT chunbowang flexibilityofimicrocystisioverwinteringstrategyinresponsetowintertemperatures AT bangdingxiao flexibilityofimicrocystisioverwinteringstrategyinresponsetowintertemperatures
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Flexibility of <i>Microcystis</i> Overwintering Strategy in Response to Winter Temperatures

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