Effects of macro metals on alkaline phosphatase activity under conditions of sulfide accumulation
文献类型：期刊论文
| 作者 | Zhao, GQ; Sheng, YQ ; Li, CY; Liu, QQ
|
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2019-12-20 |
| 卷号 | 697页码:UNSP 134151 |
| 关键词 | Alkaline phosphatase Macro metal Sulfate reduction Organic phosphorus |
| ISSN号 | 0048-9697 |
| 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 |
| 文献子类 | Article |
| 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. |
| WOS关键词 | BIOGENIC PHOSPHORUS-COMPOUNDS ; ORGANIC PHOSPHORUS ; FRESH-WATER ; STRUCTURAL EVIDENCE ; EUTROPHIC LAKE ; SEDIMENTS ; INHIBITION ; SOIL ; FRACTIONATION ; KINETICS |
| WOS研究方向 | Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000499668600032 |
| 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] |
| 源URL | [http://ir.yic.ac.cn/handle/133337/24787]  |
| 专题 | 烟台海岸带研究所_山东省海岸带环境工程技术研究中心 烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室 |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing, Peoples R China 2.Chinese Acad Sci, Res Ctr Coastal Environm Engn Technol Shandong Pr, Yantai Inst Coastal Zone Res, Yantai, 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. |
入库方式： OAI收割
来源：烟台海岸带研究所
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