Effects of macro metals on alkaline phosphatase activity under conditions of sulfide accumulation

doi:10.1016/j.scitotenv.2019.134151

YIC-IR > 中国科学院海岸带环境过程与生态修复重点实验室 > 海岸带环境工程技术研究与发展中心

	Effects of macro metals on alkaline phosphatase activity under conditions of sulfide accumulation
	Zhao, GQ ; Sheng, YQ; Li, CY ; Liu, QQ
发表期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
	2019-12-20
卷号	697 页码:UNSP 134151
关键词	Alkaline phosphatase Macro metal Sulfate reduction Organic phosphorus
研究领域	Environmental Sciences
DOI	10.1016/j.scitotenv.2019.134151
产权排序	[Zhao, Guoqiang; Sheng, Yanqing; Li, Changyu; Liu, Qunqun] Chinese Acad Sci, Res Ctr Coastal Environm Engn Technol Shandong Pr, Yantai Inst Coastal Zone Res, Yantai, Peoples R China; [Zhao, Guoqiang; Li, Changyu; Liu, Qunqun] Univ Chinese Acad Sci, Beijing, Peoples R China
通讯作者	Sheng, Yanqing(yqsheng@yic.ac.cn)
作者部门	海岸带环境工程技术研究与发展中心
英文摘要	Alkaline phosphatase (AP) is commonly found in aquatic ecosystems as an extracellular enzyme closely related to the biogeochemical cycling of phosphorus. Although the AP activity (APA) is conventionally thought to be a main response to PO43- starvation, significant effects of macro metal elements (Al, Fe, and Ca) and S on the APA were found in this study. The APAwas reduced by Al primarily through the adsorption of the enzyme onto AlOOH colloids. Fe2+ inhibited the APA via a mechanism involving free radical oxidation. The main mechanism by which Ca2+ inhibited the APA was by competing with Mg2+ and Zn2+ for the active sites of the enzyme. Excessive S2- could reduce the APA by removing Zn2+ from the active sites of the enzyme. The inhibition of APA could be reversed if some metal ions (e.g., Fe2+) were precipitated by S2- under reducing conditions. Therefore, in anaerobic ecosystems, the effects of macrometals on APA under conditions of sulfide accumulation may have innovative implications for phosphorus management. (C) 2019 Elsevier B.V. All rights reserved.
文章类型	Article
资助机构	Strategic Priority Research Program of the Chinese Academy of SciencesChinese Academy of Sciences [XDA23050203] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China [41373100] ; Key Project of Research and Development Plan of Yantai [2018ZHGY083] ; Key Research and Development Program of Shandong Province [2019GSF109002]
收录类别	SCI
语种	英语
关键词[WOS]	BIOGENIC PHOSPHORUS-COMPOUNDS ; ORGANIC PHOSPHORUS ; FRESH-WATER ; STRUCTURAL EVIDENCE ; EUTROPHIC LAKE ; SEDIMENTS ; INHIBITION ; SOIL ; FRACTIONATION ; KINETICS
研究领域[WOS]	Environmental Sciences
WOS记录号	WOS:000499668600032
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/24787
专题	中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境工程技术研究与发展中心中国科学院海岸带环境过程与生态修复重点实验室
作者单位	1.Chinese Acad Sci, Res Ctr Coastal Environm Engn Technol Shandong Pr, Yantai Inst Coastal Zone Res, Yantai, Peoples R China; 2.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Zhao, GQ,Sheng, YQ,Li, CY,et al. Effects of macro metals on alkaline phosphatase activity under conditions of sulfide accumulation[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,697:UNSP 134151.
APA	Zhao, GQ,Sheng, YQ,Li, CY,&Liu, QQ.(2019).Effects of macro metals on alkaline phosphatase activity under conditions of sulfide accumulation.SCIENCE OF THE TOTAL ENVIRONMENT,697,UNSP 134151.
MLA	Zhao, GQ,et al."Effects of macro metals on alkaline phosphatase activity under conditions of sulfide accumulation".SCIENCE OF THE TOTAL ENVIRONMENT 697(2019):UNSP 134151.

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