兰州大学机构库
Enhanced mechanism of extracellular electron transfer between semiconducting minerals anatase and Pseudomonas aeruginosa PAO1 in euphotic zone
Liu, Jia1; Liu, Xi2; Ding, Hongrui1; Ren, Guiping3; Sun, Yuan1; Liu, Ying1; Ji, Xiang1; Ma, Luyan Z.2,4; Li, Yan1; Lu, Anhuai1
2021-10
Source PublicationBIOELECTROCHEMISTRY
ISSN1567-5394
Volume141
AbstractFocusing the marine euphotic zone, which is the pivotal region for interaction of solar light-mineral microorganism and the elements cycle, we have conducted the research on the mechanism of semiconducting minerals promoting extracellular electron transfer with microorganisms in depth. Therein, anatase which is one of the most representative semiconducting minerals in marine euphotic zone was selected. The mineralogical characterization of anatase was identified by ESEM, AFM, EDS, Raman, XRD, and its semiconducting characteristics was determined by UV-Vis and Mott-Schottky plots. Determined by the electrochemical measurement of I-t curves, the photocurrent density of anatase was more prominent than dark current density. Pseudomonas aeruginosa PAO1 was widely distributed in the euphotic zone, and its mutants of operons deficient in biosynthesis pyocyanin (Dphz1Dphz2) and pili deficient (DpilA) were employed in this study. I-t curves indicated that both direct and indirect extracellular electron transfer processes occurred between anatase and PAO1. The indirect electron transfer depending on pyocyanin secreted by PAO1 was the main electron transfer mode. This work demonstrated the light-driven extracellular electron transfer and further revealed the photo-catalyzed mechanisms between anatase and PAO1 in marine euphotic zone. (c) 2021 Elsevier B.V. All rights reserved.
KeywordAnatase Pseudomonas aeruginosa PAO1 Gene knockout Extracellular electron transfer Marine euphotic zone
PublisherELSEVIER SCIENCE SA
DOI10.1016/j.bioelechem.2021.107849
Indexed ByEI ; SCOPUS ; SCIE
Language英语
WOS Research AreaBiochemistry & Molecular Biology ; Life Sciences & Biomedicine - Other Topics ; Biophysics ; Electrochemistry
WOS SubjectBiochemistry & Molecular Biology ; Biology ; Biophysics ; Electrochemistry
WOS IDWOS:000680452600001
Original Document TypeArticle
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.lzu.edu.cn/handle/262010/452460
Collection兰州大学
Corresponding AuthorDing, Hongrui
Affiliation1.Peking Univ, Sch Earth & Space Sci, Key Lab Orogen Belts & Crustal Evolut, Beijing Key Lab Mineral Environm Funct, Beijing 100871, Peoples R China;
2.Chinese Acad Sci, Inst Microbiol, State Key Lab Microbial Resources, Beijing 100101, Peoples R China;
3.Lanzhou Univ, Lanzhou 730000, Peoples R China;
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Liu, Jia,Liu, Xi,Ding, Hongrui,et al. Enhanced mechanism of extracellular electron transfer between semiconducting minerals anatase and Pseudomonas aeruginosa PAO1 in euphotic zone[J]. BIOELECTROCHEMISTRY,2021,141.
APA Liu, Jia.,Liu, Xi.,Ding, Hongrui.,Ren, Guiping.,Sun, Yuan.,...&Lu, Anhuai.(2021).Enhanced mechanism of extracellular electron transfer between semiconducting minerals anatase and Pseudomonas aeruginosa PAO1 in euphotic zone.BIOELECTROCHEMISTRY,141.
MLA Liu, Jia,et al."Enhanced mechanism of extracellular electron transfer between semiconducting minerals anatase and Pseudomonas aeruginosa PAO1 in euphotic zone".BIOELECTROCHEMISTRY 141(2021).
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