Proteorhodopsin phototrophy promotes survival of marine bacteria during starvation.

Proteorhodopsins are globally abundant photoproteins found in bacteria in the photic zone of the ocean. Although their function as proton pumps with energy-yielding potential has been demonstrated, the ecological role of proteorhodopsins remains largely unexplored. Here, we report the presence and f...

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Autores principales:	Laura Gómez-Consarnau, Neelam Akram, Kristoffer Lindell, Anders Pedersen, Richard Neutze, Debra L Milton, José M González, Jarone Pinhassi
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2010
Materias:	Biology (General) QH301-705.5
Acceso en línea:	https://doaj.org/article/1d87aa2bbdf14b3ca680581c1de630ed
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spelling	oai:doaj.org-article:1d87aa2bbdf14b3ca680581c1de630ed2021-12-02T19:54:52ZProteorhodopsin phototrophy promotes survival of marine bacteria during starvation.1544-91731545-788510.1371/journal.pbio.1000358https://doaj.org/article/1d87aa2bbdf14b3ca680581c1de630ed2010-04-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/20436956/?tool=EBIhttps://doaj.org/toc/1544-9173https://doaj.org/toc/1545-7885Proteorhodopsins are globally abundant photoproteins found in bacteria in the photic zone of the ocean. Although their function as proton pumps with energy-yielding potential has been demonstrated, the ecological role of proteorhodopsins remains largely unexplored. Here, we report the presence and function of proteorhodopsin in a member of the widespread genus Vibrio, uncovered through whole-genome analysis. Phylogenetic analysis suggests that the Vibrio strain AND4 obtained proteorhodopsin through lateral gene transfer, which could have modified the ecology of this marine bacterium. We demonstrate an increased long-term survival of AND4 when starved in seawater exposed to light rather than held in darkness. Furthermore, mutational analysis provides the first direct evidence, to our knowledge, linking the proteorhodopsin gene and its biological function in marine bacteria. Thus, proteorhodopsin phototrophy confers a fitness advantage to marine bacteria, representing a novel mechanism for bacterioplankton to endure frequent periods of resource deprivation at the ocean's surface.Laura Gómez-ConsarnauNeelam AkramKristoffer LindellAnders PedersenRichard NeutzeDebra L MiltonJosé M GonzálezJarone PinhassiPublic Library of Science (PLoS)articleBiology (General)QH301-705.5ENPLoS Biology, Vol 8, Iss 4, p e1000358 (2010)
institution	DOAJ
collection	DOAJ
language	EN
topic	Biology (General) QH301-705.5
spellingShingle	Biology (General) QH301-705.5 Laura Gómez-Consarnau Neelam Akram Kristoffer Lindell Anders Pedersen Richard Neutze Debra L Milton José M González Jarone Pinhassi Proteorhodopsin phototrophy promotes survival of marine bacteria during starvation.
description	Proteorhodopsins are globally abundant photoproteins found in bacteria in the photic zone of the ocean. Although their function as proton pumps with energy-yielding potential has been demonstrated, the ecological role of proteorhodopsins remains largely unexplored. Here, we report the presence and function of proteorhodopsin in a member of the widespread genus Vibrio, uncovered through whole-genome analysis. Phylogenetic analysis suggests that the Vibrio strain AND4 obtained proteorhodopsin through lateral gene transfer, which could have modified the ecology of this marine bacterium. We demonstrate an increased long-term survival of AND4 when starved in seawater exposed to light rather than held in darkness. Furthermore, mutational analysis provides the first direct evidence, to our knowledge, linking the proteorhodopsin gene and its biological function in marine bacteria. Thus, proteorhodopsin phototrophy confers a fitness advantage to marine bacteria, representing a novel mechanism for bacterioplankton to endure frequent periods of resource deprivation at the ocean's surface.
format	article
author	Laura Gómez-Consarnau Neelam Akram Kristoffer Lindell Anders Pedersen Richard Neutze Debra L Milton José M González Jarone Pinhassi
author_facet	Laura Gómez-Consarnau Neelam Akram Kristoffer Lindell Anders Pedersen Richard Neutze Debra L Milton José M González Jarone Pinhassi
author_sort	Laura Gómez-Consarnau
title	Proteorhodopsin phototrophy promotes survival of marine bacteria during starvation.
title_short	Proteorhodopsin phototrophy promotes survival of marine bacteria during starvation.
title_full	Proteorhodopsin phototrophy promotes survival of marine bacteria during starvation.
title_fullStr	Proteorhodopsin phototrophy promotes survival of marine bacteria during starvation.
title_full_unstemmed	Proteorhodopsin phototrophy promotes survival of marine bacteria during starvation.
title_sort	proteorhodopsin phototrophy promotes survival of marine bacteria during starvation.
publisher	Public Library of Science (PLoS)
publishDate	2010
url	https://doaj.org/article/1d87aa2bbdf14b3ca680581c1de630ed
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Proteorhodopsin phototrophy promotes survival of marine bacteria during starvation.

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