Potassium regulates the growth and toxin biosynthesis of Microcystis aeruginosa
文献类型：期刊论文
| 作者 | He, Yixin1; Ma, Jianrong2; Joseph, Vanderwall3; Wei, Yanyan4; Liu, Mengzi1; Zhang, Zhaoxue1; Li, Guo1; He, Qiang1; Li, Hong1 |
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2020-12-01 |
| 卷号 | 267页码:11 |
| 关键词 | Potassium Microcystis iTRAQ Proteomic Microcystin |
| ISSN号 | 0269-7491 |
| DOI | 10.1016/j.envpol.2020.115576 |
| 通讯作者 | Li, Hong(hongli@cqu.edu.cn) |
| 英文摘要 | Potassium (K+) is the most abundant cation in phytoplankton cells, but its impact on Microcystis aeruginosa (M. aeruginosa) has not been fully documented. This study presents evidence of how K+ availability affects the growth, oxidative stress and microcystin (MC) production of M. aeruginosa. The iTRAQbased proteomic analysis revealed that during K+ deficiency, serious oxidative damage occurred and the photosynthesis-associated and ABC transporter-related proteins in M. aeruginosa were substantially downregulated. In the absence of K+, a 69.26% reduction in cell density was shown, and both the photosynthesis and iron uptake were depressed, which triggered a declined production of ATP and expression of MC synthetases genes (mcyA, B and D), and MC exporters (mcyH). Through the impairment of both the MC biosynthesis and MC transportation out of cells, K+ depletion caused an 85.89% reduction of extracellular MC content at the end of the study. However, with increasing in the available K+ concentrations, photosynthesis efficiency, the expression of ABC-transporter proteins, and the transcription of mcy genes displayed slight differences compared with those in the control group. This work represents evidence that K+ availability can regulate the physiological metabolic activity of M. aeruginosa and K+ deficiency leads to depressed growth and MC production in M. aeruginosa. (C) 2020 Elsevier Ltd. 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[41967048] ; Natural Science Foundation of China[41601537] ; Chongqing Research Program of Basic Research and Frontier Technology[cstc2016jcyjA0498] ; Chongqing Research Program of Basic Research and Frontier Technology[cstc2018jcyjAX0601] ; Fundamental Research Funds for the Central Universities[2019CDQYCH013] ; UM BRIDGES through National Science Foundation[DGE-1633831] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000593967000017 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/12630]  |
| 专题 | 中国科学院重庆绿色智能技术研究院 |
| 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, CAS Key Lab Reservoir Environm, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China 3.Univ Montana, Flathead Lake Biol Stn, Polson, MT 59860 USA 4.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 | He, Yixin,Ma, Jianrong,Joseph, Vanderwall,et al. Potassium regulates the growth and toxin biosynthesis of Microcystis aeruginosa[J]. ENVIRONMENTAL POLLUTION,2020,267:11. |
| APA | He, Yixin.,Ma, Jianrong.,Joseph, Vanderwall.,Wei, Yanyan.,Liu, Mengzi.,...&Li, Hong.(2020).Potassium regulates the growth and toxin biosynthesis of Microcystis aeruginosa.ENVIRONMENTAL POLLUTION,267,11. |
| MLA | He, Yixin,et al."Potassium regulates the growth and toxin biosynthesis of Microcystis aeruginosa".ENVIRONMENTAL POLLUTION 267(2020):11. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
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