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DOI	10.1111/1758-2229.12789
	The response of Microcystis aeruginosa strain MGK to a single or two consecutive H2O2 applications
	Daniel, Einat 1; Weiss, Gad 1; Murik, Omer 2,3; Sukenik, Assaf 2; Lieman-Hurwitz, Judy 1; Kaplan, Aaron 1
通讯作者	Kaplan, Aaron
来源期刊	ENVIRONMENTAL MICROBIOLOGY REPORTS
ISSN	1758-2229
出版年	2019
卷号	11 期号:5 页码:621-629
英文摘要	Various approaches have been proposed to control/eliminate toxic Microcystis sp. blooms including H2O2 treatments. Earlier studies showed that pre-exposure of various algae to oxidative stress induced massive cell death when cultures were exposed to an additional H2O2 treatment. We examined the vulnerability of exponential and stationary-phase Microcystis sp. strain MGK cultures to single and double H2O2 applications. Stationary cultures show a much higher ability to decompose H2O2 than younger cultures. Nevertheless, they are more sensitive to an additional H2O2 dose given 1-6 h after the first one. Transcript analyses following H2O2 application showed a fast rise in glutathione peroxidase abundance (227-fold within an hour) followed by a steep decline thereafter. Other genes potentially engaged in oxidative stress were far less affected. Metabolic-related genes were downregulated after H2O2 treatments. Among those examined, the transcript level of prk (encoding phosphoribulose kinase) was the slowest to recover in agreement with the decline in photosynthetic rate revealed by fluorescence measurements. Our findings shed light on the response of Microcystis MGK to oxidative stress suggesting that two consecutive H2O2 applications of low concentrations are far more effective in controlling Microcystis sp. population than a single dose of a higher concentration.
类型	Editorial Material
语种	英语
国家	Israel
收录类别	SCI-E
WOS记录号	WOS:000481589600001
WOS关键词	PROGRAMMED CELL-DEATH ; HYDROGEN-PEROXIDE ; OXIDATIVE STRESS ; SECONDARY METABOLITES ; DESERT CYANOBACTERIA ; TOXIN RELEASE ; BLOOMS ; LIGHT ; EXPOSURE ; ECOLOGY
WOS类目	Environmental Sciences ; Microbiology
WOS研究方向	Environmental Sciences & Ecology ; Microbiology
来源机构	Hebrew University of Jerusalem
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215456
作者单位	1.Hebrew Univ Jerusalem, Plants & Environm Sci, Edmond J Safra Campus, IL-9190401 Jerusalem, Israel; 2.Israel Oceanog & Limnol Res, Yigal Allon Kinneret Limnol Lab, Migdal, Israel; 3.Shaare Zedek Med Ctr, Med Genet Inst, Jerusalem, Israel
推荐引用方式 GB/T 7714	Daniel, Einat,Weiss, Gad,Murik, Omer,et al. The response of Microcystis aeruginosa strain MGK to a single or two consecutive H2O2 applications[J]. Hebrew University of Jerusalem,2019,11(5):621-629.
APA	Daniel, Einat,Weiss, Gad,Murik, Omer,Sukenik, Assaf,Lieman-Hurwitz, Judy,&Kaplan, Aaron.(2019).The response of Microcystis aeruginosa strain MGK to a single or two consecutive H2O2 applications.ENVIRONMENTAL MICROBIOLOGY REPORTS,11(5),621-629.
MLA	Daniel, Einat,et al."The response of Microcystis aeruginosa strain MGK to a single or two consecutive H2O2 applications".ENVIRONMENTAL MICROBIOLOGY REPORTS 11.5(2019):621-629.