Anditalea andensis ANESC-ST - An Alkaliphilic Halotolerant Bacterium Capable of Electricity Generation under Alkaline-Saline Conditions

A great challenge in wastewater bioremediation is the sustained activity of viable microorganisms, which can contribute to the breakdown of waste contaminants, especially in alkaline pH conditions. Identification of extremophiles with bioremediation capability can improve the efficiency of wastewate...

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Main Authors: Shi, Wei, Wang, Victor Bochuan, Zhao, Cui-E, Zhang, Qichun, Loo, Say Chye Joachim, Yang, Liang, Xu, Chenjie
Other Authors: Zhang, Jin-Song
Format: Article
Language:English
Published: 2015
Online Access:https://hdl.handle.net/10356/103030
http://hdl.handle.net/10220/38701
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1030302022-02-16T16:26:54Z Anditalea andensis ANESC-ST - An Alkaliphilic Halotolerant Bacterium Capable of Electricity Generation under Alkaline-Saline Conditions Shi, Wei Wang, Victor Bochuan Zhao, Cui-E Zhang, Qichun Loo, Say Chye Joachim Yang, Liang Xu, Chenjie Zhang, Jin-Song School of Chemical and Biomedical Engineering School of Materials Science & Engineering School of Biological Sciences Singapore Centre for Environmental Life Sciences Engineering A great challenge in wastewater bioremediation is the sustained activity of viable microorganisms, which can contribute to the breakdown of waste contaminants, especially in alkaline pH conditions. Identification of extremophiles with bioremediation capability can improve the efficiency of wastewater treatment. Here, we report the discovery of an electrochemically active alkaliphilic halotolerant bacterium, Anditalea andensis ANESC-ST (=CICC10485T=NCCB 100412T), which is capable of generating bioelectricity in alkaline–saline conditions. A. andensis ANESC-ST was shown to grow in alkaline conditions between pH 7.0–11.0 and also under high salt condition (up to 4 wt% NaCl). Electrical output was further demonstrated in microbial fuel cells (MFCs) with an average current density of ~0.5 µA/cm2, even under the harsh condition of 4 wt% NaCl and pH 9.0. Subsequent introduction of secreted extracellular metabolites into MFCs inoculated with Escherichia coli or Pseudomonas aeruginosa yielded enhanced electrical output. The ability of A. andensis ANESC-ST to generate energy under alkaline–saline conditions points towards a solution for bioelectricity recovery from alkaline–saline wastewater. This is the first report of A.andensis ANESC-ST producing bioelectricity at high salt concentration and pH. Published version 2015-09-17T04:58:29Z 2019-12-06T21:04:12Z 2015-09-17T04:58:29Z 2019-12-06T21:04:12Z 2015 2015 Journal Article Shi, W., Wang, V. B., Zhao, C. E., Zhang, Q., Loo, S. C. J., Yang, L., et al. (2015). Anditalea andensis ANESC-ST - An Alkaliphilic Halotolerant Bacterium Capable of Electricity Generation under Alkaline-Saline Conditions. PLOS ONE, 10(7), e0132766-. 1932-6203 https://hdl.handle.net/10356/103030 http://hdl.handle.net/10220/38701 10.1371/journal.pone.0132766 26171779 en PLOS ONE © 2015 Shi et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
description A great challenge in wastewater bioremediation is the sustained activity of viable microorganisms, which can contribute to the breakdown of waste contaminants, especially in alkaline pH conditions. Identification of extremophiles with bioremediation capability can improve the efficiency of wastewater treatment. Here, we report the discovery of an electrochemically active alkaliphilic halotolerant bacterium, Anditalea andensis ANESC-ST (=CICC10485T=NCCB 100412T), which is capable of generating bioelectricity in alkaline–saline conditions. A. andensis ANESC-ST was shown to grow in alkaline conditions between pH 7.0–11.0 and also under high salt condition (up to 4 wt% NaCl). Electrical output was further demonstrated in microbial fuel cells (MFCs) with an average current density of ~0.5 µA/cm2, even under the harsh condition of 4 wt% NaCl and pH 9.0. Subsequent introduction of secreted extracellular metabolites into MFCs inoculated with Escherichia coli or Pseudomonas aeruginosa yielded enhanced electrical output. The ability of A. andensis ANESC-ST to generate energy under alkaline–saline conditions points towards a solution for bioelectricity recovery from alkaline–saline wastewater. This is the first report of A.andensis ANESC-ST producing bioelectricity at high salt concentration and pH.
author2 Zhang, Jin-Song
author_facet Zhang, Jin-Song
Shi, Wei
Wang, Victor Bochuan
Zhao, Cui-E
Zhang, Qichun
Loo, Say Chye Joachim
Yang, Liang
Xu, Chenjie
format Article
author Shi, Wei
Wang, Victor Bochuan
Zhao, Cui-E
Zhang, Qichun
Loo, Say Chye Joachim
Yang, Liang
Xu, Chenjie
spellingShingle Shi, Wei
Wang, Victor Bochuan
Zhao, Cui-E
Zhang, Qichun
Loo, Say Chye Joachim
Yang, Liang
Xu, Chenjie
Anditalea andensis ANESC-ST - An Alkaliphilic Halotolerant Bacterium Capable of Electricity Generation under Alkaline-Saline Conditions
author_sort Shi, Wei
title Anditalea andensis ANESC-ST - An Alkaliphilic Halotolerant Bacterium Capable of Electricity Generation under Alkaline-Saline Conditions
title_short Anditalea andensis ANESC-ST - An Alkaliphilic Halotolerant Bacterium Capable of Electricity Generation under Alkaline-Saline Conditions
title_full Anditalea andensis ANESC-ST - An Alkaliphilic Halotolerant Bacterium Capable of Electricity Generation under Alkaline-Saline Conditions
title_fullStr Anditalea andensis ANESC-ST - An Alkaliphilic Halotolerant Bacterium Capable of Electricity Generation under Alkaline-Saline Conditions
title_full_unstemmed Anditalea andensis ANESC-ST - An Alkaliphilic Halotolerant Bacterium Capable of Electricity Generation under Alkaline-Saline Conditions
title_sort anditalea andensis anesc-st - an alkaliphilic halotolerant bacterium capable of electricity generation under alkaline-saline conditions
publishDate 2015
url https://hdl.handle.net/10356/103030
http://hdl.handle.net/10220/38701
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