Siderophores provoke extracellular superoxide production by Arthrobacter strains during carbon sources-level fluctuation
文献类型：期刊论文
| 作者 | Ning, Xue; Liang, Jinsong ; Men, Yujie; Wang, Yuhan; Chang, Yangyang; Bai, Yaohui; Liu, Huijuan; Wang, Aijie; Zhang, Tong; Qu, Jiuhui
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| 刊名 | ENVIRONMENTAL MICROBIOLOGY
 |
| 出版日期 | 2022-02 |
| 卷号 | 24期号:2页码:894-904 |
| 关键词 | IRON |
| ISSN号 | 1462-2912 |
| 英文摘要 | Superoxide and other reactive oxygen species (ROS) shape microbial communities and drive the transformation of metals and inorganic/organic matter. Taxonomically diverse bacteria and phytoplankton produce extracellular superoxide during laboratory cultivation. Understanding the physiological reasons for extracellular superoxide production by aerobes in the environment is a crucial question yet not fully solved. Here, we showed that iron-starving Arthrobacter sp. QXT-31 (A. QXT-31) secreted a type of siderophore [deferoxamine (DFO)], which provoked extracellular superoxide production by A. QXT-31 during carbon sources-level fluctuation. Several other siderophores also demonstrated similar effects to A. QXT-31. RNA-Seq data hinted that DFO stripped iron from iron-bearing proteins in electron transfer chain (ETC) of metabolically active A. QXT-31, resulting in electron leakage from the electron-rich (resulting from carbon sources metabolism by A. QXT-31) ETC and superoxide production. Considering that most aerobes secrete siderophore(s) and undergo carbon sources-level fluctuation, the superoxide-generation pathway is likely a common pathway by which aerobes produce extracellular superoxide in the environment, thus influencing the microbial community and cycling of elements. Our results pointed that the ubiquitous siderophore might be the potential driving force for the microbial generation of superoxide and other ROS and revealed the important role of iron physiology in microbial ROS generation. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/47901]  |
| 专题 | 生态环境研究中心_中国科学院饮用水科学与技术重点实验室 |
| 作者单位 | 1.Tsinghua Univ, Ctr Water & Ecol, Beijing 100084, Peoples R China 2.Harbin Inst Technol, Sch Civil & Environm Engn, Shenzhen 518055, Peoples R China 3.Univ Calif Riverside, Dept Chem & Environm Engn, Riverside, CA 92521 USA 4.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Drinking Water Sci & Technol, Beijing 100085, Peoples R China 5.Univ Hong Kong, Environm Microbiome Engn & Biotechnol Lab, Hong Kong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ning, Xue,Liang, Jinsong,Men, Yujie,et al. Siderophores provoke extracellular superoxide production by Arthrobacter strains during carbon sources-level fluctuation[J]. ENVIRONMENTAL MICROBIOLOGY,2022,24(2):894-904. |
| APA | Ning, Xue.,Liang, Jinsong.,Men, Yujie.,Wang, Yuhan.,Chang, Yangyang.,...&Qu, Jiuhui.(2022).Siderophores provoke extracellular superoxide production by Arthrobacter strains during carbon sources-level fluctuation.ENVIRONMENTAL MICROBIOLOGY,24(2),894-904. |
| MLA | Ning, Xue,et al."Siderophores provoke extracellular superoxide production by Arthrobacter strains during carbon sources-level fluctuation".ENVIRONMENTAL MICROBIOLOGY 24.2(2022):894-904. |
入库方式： OAI收割
来源：生态环境研究中心
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