Oxygen-sensitive global regulator, anr, is involved in the biosynthesis of poly(3-Hydroxybutyrate) in pseudomonas extremaustralis

Autores
Tribelli, Paula Maria; Mendez, Beatriz Silvia; López, Nancy Irene
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We analyzed the influence of the redox global regulator Anr on the accumulation of poly(3-hydroxybutyrate) (PHB) in Pseudomonas extremaustralis. Anr regulates a set of genes in the aerobic-anaerobic transition including genes involved in nitrate reduction and arginine fermentation. An anr mutant was constructed using PCR-based strategies. The wild-type strain was able to grow in both microaerobic and anaerobic conditions using nitrate as the terminal electron acceptor while the mutant strain was unable to grow under anaerobic conditions. In bioreactor cultures, PHB content in the wild-type strain was higher in microaerobic and anaerobic cultures compared with highly aerated cultures. The mutant strain showed decreased PHB levels in both aerobic and microaerobic conditions compared with the wild-type strain. Inactivation of anr led to decreased expression of phaC and phaR genes as demonstrated in real-time RT-PCR experiments. Associated with the PHB gene region, two putative binding sites for Anr were found that, in line with the phenotype observed in bioreactor cultures, suggest a role of this regulator in PHB biosynthesis. copyright © 2010 S. Karger AG, Basel.
Fil: Tribelli, Paula Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Mendez, Beatriz Silvia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales; Argentina
Fil: López, Nancy Irene. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales; Argentina
Materia
Anr
Microaerobiosis
Poly(3-Hydroxybutyrate)
Pseudomonas
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/66779
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/66779
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Oxygen-sensitive global regulator, anr, is involved in the biosynthesis of poly(3-Hydroxybutyrate) in pseudomonas extremaustralisTribelli, Paula MariaMendez, Beatriz SilviaLópez, Nancy IreneAnrMicroaerobiosisPoly(3-Hydroxybutyrate)Pseudomonashttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1We analyzed the influence of the redox global regulator Anr on the accumulation of poly(3-hydroxybutyrate) (PHB) in Pseudomonas extremaustralis. Anr regulates a set of genes in the aerobic-anaerobic transition including genes involved in nitrate reduction and arginine fermentation. An anr mutant was constructed using PCR-based strategies. The wild-type strain was able to grow in both microaerobic and anaerobic conditions using nitrate as the terminal electron acceptor while the mutant strain was unable to grow under anaerobic conditions. In bioreactor cultures, PHB content in the wild-type strain was higher in microaerobic and anaerobic cultures compared with highly aerated cultures. The mutant strain showed decreased PHB levels in both aerobic and microaerobic conditions compared with the wild-type strain. Inactivation of anr led to decreased expression of phaC and phaR genes as demonstrated in real-time RT-PCR experiments. Associated with the PHB gene region, two putative binding sites for Anr were found that, in line with the phenotype observed in bioreactor cultures, suggest a role of this regulator in PHB biosynthesis. copyright © 2010 S. Karger AG, Basel.Fil: Tribelli, Paula Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales; ArgentinaFil: Mendez, Beatriz Silvia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales; ArgentinaFil: López, Nancy Irene. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales; ArgentinaKarger2011-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/66779Tribelli, Paula Maria; Mendez, Beatriz Silvia; López, Nancy Irene; Oxygen-sensitive global regulator, anr, is involved in the biosynthesis of poly(3-Hydroxybutyrate) in pseudomonas extremaustralis; Karger; Journal of Molecular Microbiology and Biotechnology; 19; 4; 1-2011; 180-1881464-1801CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1159/000320261info:eu-repo/semantics/altIdentifier/url/https://www.karger.com/Article/Abstract/320261info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:26:19Zoai:ri.conicet.gov.ar:11336/66779instacron: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 10:26:19.98CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Oxygen-sensitive global regulator, anr, is involved in the biosynthesis of poly(3-Hydroxybutyrate) in pseudomonas extremaustralis
title Oxygen-sensitive global regulator, anr, is involved in the biosynthesis of poly(3-Hydroxybutyrate) in pseudomonas extremaustralis
spellingShingle Oxygen-sensitive global regulator, anr, is involved in the biosynthesis of poly(3-Hydroxybutyrate) in pseudomonas extremaustralis
Tribelli, Paula Maria
Anr
Microaerobiosis
Poly(3-Hydroxybutyrate)
Pseudomonas
title_short Oxygen-sensitive global regulator, anr, is involved in the biosynthesis of poly(3-Hydroxybutyrate) in pseudomonas extremaustralis
title_full Oxygen-sensitive global regulator, anr, is involved in the biosynthesis of poly(3-Hydroxybutyrate) in pseudomonas extremaustralis
title_fullStr Oxygen-sensitive global regulator, anr, is involved in the biosynthesis of poly(3-Hydroxybutyrate) in pseudomonas extremaustralis
title_full_unstemmed Oxygen-sensitive global regulator, anr, is involved in the biosynthesis of poly(3-Hydroxybutyrate) in pseudomonas extremaustralis
title_sort Oxygen-sensitive global regulator, anr, is involved in the biosynthesis of poly(3-Hydroxybutyrate) in pseudomonas extremaustralis
dc.creator.none.fl_str_mv Tribelli, Paula Maria
Mendez, Beatriz Silvia
López, Nancy Irene
author Tribelli, Paula Maria
author_facet Tribelli, Paula Maria
Mendez, Beatriz Silvia
López, Nancy Irene
author_role author
author2 Mendez, Beatriz Silvia
López, Nancy Irene
author2_role author
author
dc.subject.none.fl_str_mv Anr
Microaerobiosis
Poly(3-Hydroxybutyrate)
Pseudomonas
topic Anr
Microaerobiosis
Poly(3-Hydroxybutyrate)
Pseudomonas
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We analyzed the influence of the redox global regulator Anr on the accumulation of poly(3-hydroxybutyrate) (PHB) in Pseudomonas extremaustralis. Anr regulates a set of genes in the aerobic-anaerobic transition including genes involved in nitrate reduction and arginine fermentation. An anr mutant was constructed using PCR-based strategies. The wild-type strain was able to grow in both microaerobic and anaerobic conditions using nitrate as the terminal electron acceptor while the mutant strain was unable to grow under anaerobic conditions. In bioreactor cultures, PHB content in the wild-type strain was higher in microaerobic and anaerobic cultures compared with highly aerated cultures. The mutant strain showed decreased PHB levels in both aerobic and microaerobic conditions compared with the wild-type strain. Inactivation of anr led to decreased expression of phaC and phaR genes as demonstrated in real-time RT-PCR experiments. Associated with the PHB gene region, two putative binding sites for Anr were found that, in line with the phenotype observed in bioreactor cultures, suggest a role of this regulator in PHB biosynthesis. copyright © 2010 S. Karger AG, Basel.
Fil: Tribelli, Paula Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Mendez, Beatriz Silvia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales; Argentina
Fil: López, Nancy Irene. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales; Argentina
description We analyzed the influence of the redox global regulator Anr on the accumulation of poly(3-hydroxybutyrate) (PHB) in Pseudomonas extremaustralis. Anr regulates a set of genes in the aerobic-anaerobic transition including genes involved in nitrate reduction and arginine fermentation. An anr mutant was constructed using PCR-based strategies. The wild-type strain was able to grow in both microaerobic and anaerobic conditions using nitrate as the terminal electron acceptor while the mutant strain was unable to grow under anaerobic conditions. In bioreactor cultures, PHB content in the wild-type strain was higher in microaerobic and anaerobic cultures compared with highly aerated cultures. The mutant strain showed decreased PHB levels in both aerobic and microaerobic conditions compared with the wild-type strain. Inactivation of anr led to decreased expression of phaC and phaR genes as demonstrated in real-time RT-PCR experiments. Associated with the PHB gene region, two putative binding sites for Anr were found that, in line with the phenotype observed in bioreactor cultures, suggest a role of this regulator in PHB biosynthesis. copyright © 2010 S. Karger AG, Basel.
publishDate 2011
dc.date.none.fl_str_mv 2011-01
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/11336/66779
Tribelli, Paula Maria; Mendez, Beatriz Silvia; López, Nancy Irene; Oxygen-sensitive global regulator, anr, is involved in the biosynthesis of poly(3-Hydroxybutyrate) in pseudomonas extremaustralis; Karger; Journal of Molecular Microbiology and Biotechnology; 19; 4; 1-2011; 180-188
1464-1801
CONICET Digital
CONICET
url http://hdl.handle.net/11336/66779
identifier_str_mv Tribelli, Paula Maria; Mendez, Beatriz Silvia; López, Nancy Irene; Oxygen-sensitive global regulator, anr, is involved in the biosynthesis of poly(3-Hydroxybutyrate) in pseudomonas extremaustralis; Karger; Journal of Molecular Microbiology and Biotechnology; 19; 4; 1-2011; 180-188
1464-1801
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1159/000320261
info:eu-repo/semantics/altIdentifier/url/https://www.karger.com/Article/Abstract/320261
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
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Karger
publisher.none.fl_str_mv Karger
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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score 13.070432

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