Evidence of microbial rhodopsins in Antarctic Dry Valley edaphic systems
- Autores
- Guerrero, Leandro Demián; Vikram, Surendra; Makhalanyane, Thulani P.; Cowan, Don A.
- Año de publicación
- 2017
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Microorganisms able to synthesize rhodopsins have the capacity to translocate ions through their membranes, using solar energy to generate a proton motive force. Rhodopsins are the most abundant phototrophic proteins in oceanic surface waters and are key constituents in marine bacterial ecology. However, it remains unclear how rhodopsins are used in most microorganisms. Despite their abundance in marine and fresh-water systems, the presence of functional rhodopsin systems in edaphic habitats has never been reported. Here, we show the presence of several new putative H+, Na+ and Cl+ pumping rhodopsins identified by metagenomic analysis of Antarctic desert hypolithic communities. Reconstruction of two Proteobacteria genomes harboring xanthorhodopsin-like proteins and one Bacteroidetes genome with a Na-pumping-like rhodopsin indicated that these bacteria were aerobic heterotrophs possessing the apparent capacity for the functional expression of rhodopsins. The existence of these protein systems in hypolithic bacteria expands the known role of rhodopsins to include terrestrial environments and suggests a possible predominant function as heterotrophic energy supply proteins, a feasible microbial adaptation to the harsh conditions prevalent in Antarctic edaphic systems.
Fil: Guerrero, Leandro Demián. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular "Dr. Héctor N. Torres"; Argentina. University of Pretoria. Department of Genetics. Centre of Microbial Ecology and Genomics; Sudáfrica
Fil: Vikram, Surendra. University of Pretoria. Department of Genetics. Centre of Microbial Ecology and Genomics; Sudáfrica
Fil: Makhalanyane, Thulani P.. University of Pretoria. Department of Genetics. Centre of Microbial Ecology and Genomics; Sudáfrica
Fil: Cowan, Don A.. University of Pretoria. Department of Genetics. Centre of Microbial Ecology and Genomics; Sudáfrica - Materia
-
Rhodopsins
Antarctica
Metagenimics
Soil - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/72604
Ver los metadatos del registro completo
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Evidence of microbial rhodopsins in Antarctic Dry Valley edaphic systemsGuerrero, Leandro DemiánVikram, SurendraMakhalanyane, Thulani P.Cowan, Don A.RhodopsinsAntarcticaMetagenimicsSoilhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Microorganisms able to synthesize rhodopsins have the capacity to translocate ions through their membranes, using solar energy to generate a proton motive force. Rhodopsins are the most abundant phototrophic proteins in oceanic surface waters and are key constituents in marine bacterial ecology. However, it remains unclear how rhodopsins are used in most microorganisms. Despite their abundance in marine and fresh-water systems, the presence of functional rhodopsin systems in edaphic habitats has never been reported. Here, we show the presence of several new putative H+, Na+ and Cl+ pumping rhodopsins identified by metagenomic analysis of Antarctic desert hypolithic communities. Reconstruction of two Proteobacteria genomes harboring xanthorhodopsin-like proteins and one Bacteroidetes genome with a Na-pumping-like rhodopsin indicated that these bacteria were aerobic heterotrophs possessing the apparent capacity for the functional expression of rhodopsins. The existence of these protein systems in hypolithic bacteria expands the known role of rhodopsins to include terrestrial environments and suggests a possible predominant function as heterotrophic energy supply proteins, a feasible microbial adaptation to the harsh conditions prevalent in Antarctic edaphic systems.Fil: Guerrero, Leandro Demián. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular "Dr. Héctor N. Torres"; Argentina. University of Pretoria. Department of Genetics. Centre of Microbial Ecology and Genomics; SudáfricaFil: Vikram, Surendra. University of Pretoria. Department of Genetics. Centre of Microbial Ecology and Genomics; SudáfricaFil: Makhalanyane, Thulani P.. University of Pretoria. Department of Genetics. Centre of Microbial Ecology and Genomics; SudáfricaFil: Cowan, Don A.. University of Pretoria. Department of Genetics. Centre of Microbial Ecology and Genomics; SudáfricaWiley Blackwell Publishing, Inc2017-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/72604Guerrero, Leandro Demián; Vikram, Surendra; Makhalanyane, Thulani P.; Cowan, Don A.; Evidence of microbial rhodopsins in Antarctic Dry Valley edaphic systems; Wiley Blackwell Publishing, Inc; Environmental Microbiology; 19; 9; 9-2017; 3755-37671462-2912CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/1462-2920.13877info:eu-repo/semantics/altIdentifier/doi/10.1111/1462-2920.13877info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:55:35Zoai:ri.conicet.gov.ar:11336/72604instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:55:35.269CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Evidence of microbial rhodopsins in Antarctic Dry Valley edaphic systems |
title |
Evidence of microbial rhodopsins in Antarctic Dry Valley edaphic systems |
spellingShingle |
Evidence of microbial rhodopsins in Antarctic Dry Valley edaphic systems Guerrero, Leandro Demián Rhodopsins Antarctica Metagenimics Soil |
title_short |
Evidence of microbial rhodopsins in Antarctic Dry Valley edaphic systems |
title_full |
Evidence of microbial rhodopsins in Antarctic Dry Valley edaphic systems |
title_fullStr |
Evidence of microbial rhodopsins in Antarctic Dry Valley edaphic systems |
title_full_unstemmed |
Evidence of microbial rhodopsins in Antarctic Dry Valley edaphic systems |
title_sort |
Evidence of microbial rhodopsins in Antarctic Dry Valley edaphic systems |
dc.creator.none.fl_str_mv |
Guerrero, Leandro Demián Vikram, Surendra Makhalanyane, Thulani P. Cowan, Don A. |
author |
Guerrero, Leandro Demián |
author_facet |
Guerrero, Leandro Demián Vikram, Surendra Makhalanyane, Thulani P. Cowan, Don A. |
author_role |
author |
author2 |
Vikram, Surendra Makhalanyane, Thulani P. Cowan, Don A. |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
Rhodopsins Antarctica Metagenimics Soil |
topic |
Rhodopsins Antarctica Metagenimics Soil |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Microorganisms able to synthesize rhodopsins have the capacity to translocate ions through their membranes, using solar energy to generate a proton motive force. Rhodopsins are the most abundant phototrophic proteins in oceanic surface waters and are key constituents in marine bacterial ecology. However, it remains unclear how rhodopsins are used in most microorganisms. Despite their abundance in marine and fresh-water systems, the presence of functional rhodopsin systems in edaphic habitats has never been reported. Here, we show the presence of several new putative H+, Na+ and Cl+ pumping rhodopsins identified by metagenomic analysis of Antarctic desert hypolithic communities. Reconstruction of two Proteobacteria genomes harboring xanthorhodopsin-like proteins and one Bacteroidetes genome with a Na-pumping-like rhodopsin indicated that these bacteria were aerobic heterotrophs possessing the apparent capacity for the functional expression of rhodopsins. The existence of these protein systems in hypolithic bacteria expands the known role of rhodopsins to include terrestrial environments and suggests a possible predominant function as heterotrophic energy supply proteins, a feasible microbial adaptation to the harsh conditions prevalent in Antarctic edaphic systems. Fil: Guerrero, Leandro Demián. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular "Dr. Héctor N. Torres"; Argentina. University of Pretoria. Department of Genetics. Centre of Microbial Ecology and Genomics; Sudáfrica Fil: Vikram, Surendra. University of Pretoria. Department of Genetics. Centre of Microbial Ecology and Genomics; Sudáfrica Fil: Makhalanyane, Thulani P.. University of Pretoria. Department of Genetics. Centre of Microbial Ecology and Genomics; Sudáfrica Fil: Cowan, Don A.. University of Pretoria. Department of Genetics. Centre of Microbial Ecology and Genomics; Sudáfrica |
description |
Microorganisms able to synthesize rhodopsins have the capacity to translocate ions through their membranes, using solar energy to generate a proton motive force. Rhodopsins are the most abundant phototrophic proteins in oceanic surface waters and are key constituents in marine bacterial ecology. However, it remains unclear how rhodopsins are used in most microorganisms. Despite their abundance in marine and fresh-water systems, the presence of functional rhodopsin systems in edaphic habitats has never been reported. Here, we show the presence of several new putative H+, Na+ and Cl+ pumping rhodopsins identified by metagenomic analysis of Antarctic desert hypolithic communities. Reconstruction of two Proteobacteria genomes harboring xanthorhodopsin-like proteins and one Bacteroidetes genome with a Na-pumping-like rhodopsin indicated that these bacteria were aerobic heterotrophs possessing the apparent capacity for the functional expression of rhodopsins. The existence of these protein systems in hypolithic bacteria expands the known role of rhodopsins to include terrestrial environments and suggests a possible predominant function as heterotrophic energy supply proteins, a feasible microbial adaptation to the harsh conditions prevalent in Antarctic edaphic systems. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-09 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/72604 Guerrero, Leandro Demián; Vikram, Surendra; Makhalanyane, Thulani P.; Cowan, Don A.; Evidence of microbial rhodopsins in Antarctic Dry Valley edaphic systems; Wiley Blackwell Publishing, Inc; Environmental Microbiology; 19; 9; 9-2017; 3755-3767 1462-2912 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/72604 |
identifier_str_mv |
Guerrero, Leandro Demián; Vikram, Surendra; Makhalanyane, Thulani P.; Cowan, Don A.; Evidence of microbial rhodopsins in Antarctic Dry Valley edaphic systems; Wiley Blackwell Publishing, Inc; Environmental Microbiology; 19; 9; 9-2017; 3755-3767 1462-2912 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/1462-2920.13877 info:eu-repo/semantics/altIdentifier/doi/10.1111/1462-2920.13877 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Wiley Blackwell Publishing, Inc |
publisher.none.fl_str_mv |
Wiley Blackwell Publishing, Inc |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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