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解析 Shewanella oneidensis MR-1 还原氧化石墨烯的电子传递途径。

Deciphering the electron transport pathway for graphene oxide reduction by Shewanella oneidensis MR-1.

机构信息

Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, USA.

出版信息

J Bacteriol. 2011 Jul;193(14):3662-5. doi: 10.1128/JB.00201-11. Epub 2011 May 20.

DOI:10.1128/JB.00201-11
PMID:21602337
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3133310/
Abstract

We determined that graphene oxide reduction by Shewanella oneidensis MR-1 requires the Mtr respiratory pathway by analyzing a range of mutants lacking these proteins. Electron shuttling compounds increased the graphene oxide reduction rate 3- to 5-fold. These results may help facilitate the use of bacteria for large-scale graphene production.

摘要

我们通过分析一系列缺乏这些蛋白质的突变体,确定希瓦氏菌 MR-1 通过 Mtr 呼吸途径还原氧化石墨烯。电子穿梭化合物将氧化石墨烯的还原速率提高了 3-5 倍。这些结果可能有助于促进细菌在大规模生产石墨烯中的应用。

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本文引用的文献

1
Partial functional replacement of CymA by SirCD in Shewanella oneidensis MR-1.在希瓦氏菌属(Shewanella oneidensis)MR-1 中,SirCD 对 CymA 进行部分功能替代。
J Bacteriol. 2011 May;193(9):2312-21. doi: 10.1128/JB.01355-10. Epub 2011 Mar 4.
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Reduction of graphene oxide via bacterial respiration.细菌呼吸还原氧化石墨烯。
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Modularity of the Mtr respiratory pathway of Shewanella oneidensis strain MR-1.嗜铁素还原菌MR-1菌株Mtr呼吸途径的模块化
Mol Microbiol. 2010 Aug;77(4):995-1008. doi: 10.1111/j.1365-2958.2010.07266.x. Epub 2010 Jun 28.
4
Involvement and specificity of Shewanella oneidensis outer membrane cytochromes in the reduction of soluble and solid-phase terminal electron acceptors.希瓦氏菌属外膜细胞色素在还原可溶性和固相末端电子受体中的作用和特异性。
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5
Characterization of an electron conduit between bacteria and the extracellular environment.细菌与细胞外环境之间电子导管的特性。
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The Mtr respiratory pathway is essential for reducing flavins and electrodes in Shewanella oneidensis.Mtr 呼吸途径对于减少希瓦氏菌中的黄素和电极是必不可少的。
J Bacteriol. 2010 Jan;192(2):467-74. doi: 10.1128/JB.00925-09. Epub 2009 Nov 6.
7
Mechanism and Consequences of anaerobic respiration of cobalt by Shewanella oneidensis strain MR-1.嗜铁素还原地杆菌MR-1菌株对钴进行厌氧呼吸的机制及后果
Appl Environ Microbiol. 2008 Nov;74(22):6880-6. doi: 10.1128/AEM.00840-08. Epub 2008 Oct 3.
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Shewanella secretes flavins that mediate extracellular electron transfer.希瓦氏菌分泌介导细胞外电子转移的黄素。
Proc Natl Acad Sci U S A. 2008 Mar 11;105(10):3968-73. doi: 10.1073/pnas.0710525105. Epub 2008 Mar 3.
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Secretion of flavins by Shewanella species and their role in extracellular electron transfer.希瓦氏菌属细菌分泌黄素及其在细胞外电子传递中的作用。
Appl Environ Microbiol. 2008 Feb;74(3):615-23. doi: 10.1128/AEM.01387-07. Epub 2007 Dec 7.
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Ecology and biotechnology of the genus Shewanella.希瓦氏菌属的生态学与生物技术
Annu Rev Microbiol. 2007;61:237-58. doi: 10.1146/annurev.micro.61.080706.093257.