Pilin and Flavin Enhance Interspecies Electron Transfer between Microcystis and Bacteria

doi:10.2139/ssrn.4565700

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室

	Pilin and Flavin Enhance Interspecies Electron Transfer between Microcystis and Bacteria
	Wang, Wenjing 1,2; Sheng, Yanqing 2
刊名	SSRN
	2023
关键词	Electrodes Electron transitions Electron transport properties Gene expression Microbial fuel cells
ISSN号	15565068
DOI	10.2139/ssrn.4565700
英文摘要	Cyanobacteria Microcystis is found as a colony with bacteria embedded in the mucilage and always proliferates in eutrophic water. The character of extracellular electron transfer of Microcystis and bacteria can translate bioenergy to electric energy by constructing photosynthetic microbial fuel cells (PMFCs). A remarkable current density was detected in the coculture of Microcystis and bacteria than that of pure cyanobacteria or bacteria. Transcriptome analyses showed that light reaction of Microcystis was upregulated and may cause more electron release. Gene transcripts of Calvin cycles were inhibited and the electron consumptions were reduced. Although there was no significant change of oxidative phosphorylation in Microcystis, this pathway of associated bacteria was enhanced in the coculture of Microcystis and bacteria. More electrons were stimulated to be transferred out of bacterial cell membranes though enhancing the copies of VgrG and IcmF in the type II bacterial secretion system. Observing anode electrode and increased pilin copies, Microcystis/bacteria and electrodes linked together although pilin structure or attaching each other tightly as direct electron transfer channels. Corresponding with the upregulated gene expression of flavin production, the more flavins released by Microcystis but not bacteria enhanced electron transfer rates of bacteria. These results of interspecies electron transfer process between Microcystis and bacteria enlarge knowledge for activities of Microcystis colonies, and provide a better understanding for energy transformation. © 2023, The Authors. All rights reserved.
语种	英语
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/34294]
专题	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.Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, China 2.CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Shandong, Yantai; 264003, China;
推荐引用方式 GB/T 7714	Wang, Wenjing,Sheng, Yanqing. Pilin and Flavin Enhance Interspecies Electron Transfer between Microcystis and Bacteria[J]. SSRN,2023.
APA	Wang, Wenjing,&Sheng, Yanqing.(2023).Pilin and Flavin Enhance Interspecies Electron Transfer between Microcystis and Bacteria.SSRN.
MLA	Wang, Wenjing,et al."Pilin and Flavin Enhance Interspecies Electron Transfer between Microcystis and Bacteria".SSRN (2023).