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Electroactivity across the cell wall of Gram-positive bacteria
The growing interest on sustainable biotechnological processes for the production of energy and industrial relevant organic compounds have increased the discovery of electroactive organisms (i.e. organisms that are able to exchange electrons with an electrode) and the characterization of their extra...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Research Network of Computational and Structural Biotechnology
2020
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7720022/ https://www.ncbi.nlm.nih.gov/pubmed/33335679 http://dx.doi.org/10.1016/j.csbj.2020.11.021 |
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author | Paquete, Catarina M. |
author_facet | Paquete, Catarina M. |
author_sort | Paquete, Catarina M. |
collection | PubMed |
description | The growing interest on sustainable biotechnological processes for the production of energy and industrial relevant organic compounds have increased the discovery of electroactive organisms (i.e. organisms that are able to exchange electrons with an electrode) and the characterization of their extracellular electron transfer mechanisms. While most of the knowledge on extracellular electron transfer processes came from studies on Gram-negative bacteria, less is known about the processes performed by Gram-positive bacteria. In contrast to Gram-negative bacteria, Gram-positive bacteria lack an outer-membrane and contain a thick cell wall, which were thought to prevent extracellular electron transfer. However, in the last decade, an increased number of Gram-positive bacteria have been found to perform extracellular electron transfer, and exchange electrons with an electrode. In this mini-review the current knowledge on the extracellular electron transfer processes performed by Gram-positive bacteria is introduced, emphasising their electroactive role in bioelectrochemical systems. Also, the existent information of the molecular processes by which these bacteria exchange electrons with an electrode is highlighted. This understanding is fundamental to advance the implementation of these organisms in sustainable biotechnological processes, either through modification of the systems or through genetic engineering, where the organisms can be optimized to become better catalysts. |
format | Online Article Text |
id | pubmed-7720022 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Research Network of Computational and Structural Biotechnology |
record_format | MEDLINE/PubMed |
spelling | pubmed-77200222020-12-16 Electroactivity across the cell wall of Gram-positive bacteria Paquete, Catarina M. Comput Struct Biotechnol J Review Article The growing interest on sustainable biotechnological processes for the production of energy and industrial relevant organic compounds have increased the discovery of electroactive organisms (i.e. organisms that are able to exchange electrons with an electrode) and the characterization of their extracellular electron transfer mechanisms. While most of the knowledge on extracellular electron transfer processes came from studies on Gram-negative bacteria, less is known about the processes performed by Gram-positive bacteria. In contrast to Gram-negative bacteria, Gram-positive bacteria lack an outer-membrane and contain a thick cell wall, which were thought to prevent extracellular electron transfer. However, in the last decade, an increased number of Gram-positive bacteria have been found to perform extracellular electron transfer, and exchange electrons with an electrode. In this mini-review the current knowledge on the extracellular electron transfer processes performed by Gram-positive bacteria is introduced, emphasising their electroactive role in bioelectrochemical systems. Also, the existent information of the molecular processes by which these bacteria exchange electrons with an electrode is highlighted. This understanding is fundamental to advance the implementation of these organisms in sustainable biotechnological processes, either through modification of the systems or through genetic engineering, where the organisms can be optimized to become better catalysts. Research Network of Computational and Structural Biotechnology 2020-11-21 /pmc/articles/PMC7720022/ /pubmed/33335679 http://dx.doi.org/10.1016/j.csbj.2020.11.021 Text en © 2020 The Author(s) http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Review Article Paquete, Catarina M. Electroactivity across the cell wall of Gram-positive bacteria |
title | Electroactivity across the cell wall of Gram-positive bacteria |
title_full | Electroactivity across the cell wall of Gram-positive bacteria |
title_fullStr | Electroactivity across the cell wall of Gram-positive bacteria |
title_full_unstemmed | Electroactivity across the cell wall of Gram-positive bacteria |
title_short | Electroactivity across the cell wall of Gram-positive bacteria |
title_sort | electroactivity across the cell wall of gram-positive bacteria |
topic | Review Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7720022/ https://www.ncbi.nlm.nih.gov/pubmed/33335679 http://dx.doi.org/10.1016/j.csbj.2020.11.021 |
work_keys_str_mv | AT paquetecatarinam electroactivityacrossthecellwallofgrampositivebacteria |