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Extracellular Electron Transfer Mediated by Flavins in Gram-positive Bacillus sp WS-XY1 and Yeast Pichia stipitis

Wu, S, Xiao, Y, Wang, L, Zheng, Y, Chang, K, Zheng, Z, Yang, Z, Varcoe, JR and Zhao, F (2014) Extracellular Electron Transfer Mediated by Flavins in Gram-positive Bacillus sp WS-XY1 and Yeast Pichia stipitis ELECTROCHIMICA ACTA, 146. pp. 564-567.

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Abstract

Extracellular electron transfer (EET) of microorganisms represents a communicative bridge between the interior and exterior of the cells. Most prior EET studies have focused on Gram-negative bacteria. However, fungi and Gram-positive bacteria, that contain dense cellular walls, have rarely been reported. Herein, two model dense cell wall microorganisms (Bacillus sp. WS-XY1 and the yeast Pichia stipitis) were identified to be electrochemically active. Further analysis indicated that the two microorganisms were able to secrete flavins to mediate their EET. The discovery, that dense cell wall containing microorganisms can undertake mediated EET, adds to the body of knowledge towards building a comprehensive understanding of biogeochemical and bioelectrical processes.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Chemistry
Authors :
AuthorsEmailORCID
Wu, SUNSPECIFIEDUNSPECIFIED
Xiao, YUNSPECIFIEDUNSPECIFIED
Wang, LUNSPECIFIEDUNSPECIFIED
Zheng, YUNSPECIFIEDUNSPECIFIED
Chang, KUNSPECIFIEDUNSPECIFIED
Zheng, ZUNSPECIFIEDUNSPECIFIED
Yang, ZUNSPECIFIEDUNSPECIFIED
Varcoe, JRUNSPECIFIEDUNSPECIFIED
Zhao, FUNSPECIFIEDUNSPECIFIED
Date : 10 November 2014
Identification Number : 10.1016/j.electacta.2014.09.096
Uncontrolled Keywords : Science & Technology, Physical Sciences, Electrochemistry, extracellular electron transfer, flavins, Gram-positive bacteria, bioelectrochemical systems, yeast, SHEWANELLA-ONEIDENSIS MR-1, MICROBIAL FUEL-CELLS, PERFORMANCE, RIBOFLAVIN, BACTERIA, MICROORGANISMS, IDENTIFICATION, NUCLEOTIDES, REDUCTION, SECRETION
Related URLs :
Additional Information : NOTICE: this is the author’s version of a work that was accepted for publication in ELECTROCHIMICA ACTA. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in ELECTROCHIMICA ACTA, 146, November 2014, DOI 10.1016/j.electacta.2014.09.096.
Depositing User : Symplectic Elements
Date Deposited : 03 Feb 2015 13:58
Last Modified : 03 Feb 2015 13:58
URI: http://epubs.surrey.ac.uk/id/eprint/806699

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