Physiological and biochemical characterization of Azospirillum brasilense strains commonly used as plant growth-promoting rhizobacteria
Azospirillum is a plant growth-promoting rhizobacteria [PGPR] genus vastly studied and utilized as agriculture inoculants. Isolation of new strains under different environmental conditions allows the access to the genetic diversity and improves the success of inoculation procedures. Historically, the isolation of this genus has been performed by the use of some traditional culture media. In this work we characterized the physiology and biochemistry of five different A. brasilense strains, commonly used as cereal inoculants. The aim of this work is to contribute to pose into revision some concepts concerning the most used protocols to isolate and characterize this bacterium. We characterized their growth in different traditional and non-traditional culture media, evaluated some PGPR mechanisms and characterized their profiles of fatty acid methyl esters and carbon-source utilization. This work shows, for the first time, differences in both profiles, and ACC deaminase activity of A. brasilense strains. Also, we show unexpected results obtained in some of the evaluated culture media. Results obtained here and an exhaustive knowledge revision revealed that it is not appropriate to conclude about bacterial species without analyzing several strains. Also, it is necessary to continue developing studies and laboratory techniques to improve the isolation and characterization protocols.
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Subjects: | AGRICULTURE SUSTAINABILITY, AZOSPIRILLUM BRASILENSE, BIOLOGICAL NITROGEN FIXATION, FATTY ACID METHYL ESTERS ANALYSIS, PHYSIOLOGICAL PROFILES, PLANT GROWTH PROMOTION MECHANISMS PGPR, RHIZOBIALES, , |
Online Access: | http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=47106 http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber= http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber= |
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KOHA-OAI-AGRO:471062022-10-27T14:50:08Zhttp://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=47106http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=AAGPhysiological and biochemical characterization of Azospirillum brasilense strains commonly used as plant growth-promoting rhizobacteriaDi Salvo, Luciana PaulaSilva, EsdrasTeixeira, Kátia R. S.Cote, Rosalba EsquivelPereyra, María AlejandraGarcía de Salamone, Inés Eugeniatextengapplication/pdfAzospirillum is a plant growth-promoting rhizobacteria [PGPR] genus vastly studied and utilized as agriculture inoculants. Isolation of new strains under different environmental conditions allows the access to the genetic diversity and improves the success of inoculation procedures. Historically, the isolation of this genus has been performed by the use of some traditional culture media. In this work we characterized the physiology and biochemistry of five different A. brasilense strains, commonly used as cereal inoculants. The aim of this work is to contribute to pose into revision some concepts concerning the most used protocols to isolate and characterize this bacterium. We characterized their growth in different traditional and non-traditional culture media, evaluated some PGPR mechanisms and characterized their profiles of fatty acid methyl esters and carbon-source utilization. This work shows, for the first time, differences in both profiles, and ACC deaminase activity of A. brasilense strains. Also, we show unexpected results obtained in some of the evaluated culture media. Results obtained here and an exhaustive knowledge revision revealed that it is not appropriate to conclude about bacterial species without analyzing several strains. Also, it is necessary to continue developing studies and laboratory techniques to improve the isolation and characterization protocols.Azospirillum is a plant growth-promoting rhizobacteria [PGPR] genus vastly studied and utilized as agriculture inoculants. Isolation of new strains under different environmental conditions allows the access to the genetic diversity and improves the success of inoculation procedures. Historically, the isolation of this genus has been performed by the use of some traditional culture media. In this work we characterized the physiology and biochemistry of five different A. brasilense strains, commonly used as cereal inoculants. The aim of this work is to contribute to pose into revision some concepts concerning the most used protocols to isolate and characterize this bacterium. We characterized their growth in different traditional and non-traditional culture media, evaluated some PGPR mechanisms and characterized their profiles of fatty acid methyl esters and carbon-source utilization. This work shows, for the first time, differences in both profiles, and ACC deaminase activity of A. brasilense strains. Also, we show unexpected results obtained in some of the evaluated culture media. Results obtained here and an exhaustive knowledge revision revealed that it is not appropriate to conclude about bacterial species without analyzing several strains. Also, it is necessary to continue developing studies and laboratory techniques to improve the isolation and characterization protocols.AGRICULTURE SUSTAINABILITYAZOSPIRILLUM BRASILENSEBIOLOGICAL NITROGEN FIXATIONFATTY ACID METHYL ESTERS ANALYSISPHYSIOLOGICAL PROFILESPLANT GROWTH PROMOTION MECHANISMS PGPRRHIZOBIALESJournal of Basic Microbiology |
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AGRICULTURE SUSTAINABILITY AZOSPIRILLUM BRASILENSE BIOLOGICAL NITROGEN FIXATION FATTY ACID METHYL ESTERS ANALYSIS PHYSIOLOGICAL PROFILES PLANT GROWTH PROMOTION MECHANISMS PGPR RHIZOBIALES AGRICULTURE SUSTAINABILITY AZOSPIRILLUM BRASILENSE BIOLOGICAL NITROGEN FIXATION FATTY ACID METHYL ESTERS ANALYSIS PHYSIOLOGICAL PROFILES PLANT GROWTH PROMOTION MECHANISMS PGPR RHIZOBIALES |
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AGRICULTURE SUSTAINABILITY AZOSPIRILLUM BRASILENSE BIOLOGICAL NITROGEN FIXATION FATTY ACID METHYL ESTERS ANALYSIS PHYSIOLOGICAL PROFILES PLANT GROWTH PROMOTION MECHANISMS PGPR RHIZOBIALES AGRICULTURE SUSTAINABILITY AZOSPIRILLUM BRASILENSE BIOLOGICAL NITROGEN FIXATION FATTY ACID METHYL ESTERS ANALYSIS PHYSIOLOGICAL PROFILES PLANT GROWTH PROMOTION MECHANISMS PGPR RHIZOBIALES Di Salvo, Luciana Paula Silva, Esdras Teixeira, Kátia R. S. Cote, Rosalba Esquivel Pereyra, María Alejandra García de Salamone, Inés Eugenia Physiological and biochemical characterization of Azospirillum brasilense strains commonly used as plant growth-promoting rhizobacteria |
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Azospirillum is a plant growth-promoting rhizobacteria [PGPR] genus vastly studied and utilized as agriculture inoculants. Isolation of new strains under different environmental conditions allows the access to the genetic diversity and improves the success of inoculation procedures. Historically, the isolation of this genus has been performed by the use of some traditional culture media. In this work we characterized the physiology and biochemistry of five different A. brasilense strains, commonly used as cereal inoculants. The aim of this work is to contribute to pose into revision some concepts concerning the most used protocols to isolate and characterize this bacterium. We characterized their growth in different traditional and non-traditional culture media, evaluated some PGPR mechanisms and characterized their profiles of fatty acid methyl esters and carbon-source utilization. This work shows, for the first time, differences in both profiles, and ACC deaminase activity of A. brasilense strains. Also, we show unexpected results obtained in some of the evaluated culture media. Results obtained here and an exhaustive knowledge revision revealed that it is not appropriate to conclude about bacterial species without analyzing several strains. Also, it is necessary to continue developing studies and laboratory techniques to improve the isolation and characterization protocols. |
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Texto |
topic_facet |
AGRICULTURE SUSTAINABILITY AZOSPIRILLUM BRASILENSE BIOLOGICAL NITROGEN FIXATION FATTY ACID METHYL ESTERS ANALYSIS PHYSIOLOGICAL PROFILES PLANT GROWTH PROMOTION MECHANISMS PGPR RHIZOBIALES |
author |
Di Salvo, Luciana Paula Silva, Esdras Teixeira, Kátia R. S. Cote, Rosalba Esquivel Pereyra, María Alejandra García de Salamone, Inés Eugenia |
author_facet |
Di Salvo, Luciana Paula Silva, Esdras Teixeira, Kátia R. S. Cote, Rosalba Esquivel Pereyra, María Alejandra García de Salamone, Inés Eugenia |
author_sort |
Di Salvo, Luciana Paula |
title |
Physiological and biochemical characterization of Azospirillum brasilense strains commonly used as plant growth-promoting rhizobacteria |
title_short |
Physiological and biochemical characterization of Azospirillum brasilense strains commonly used as plant growth-promoting rhizobacteria |
title_full |
Physiological and biochemical characterization of Azospirillum brasilense strains commonly used as plant growth-promoting rhizobacteria |
title_fullStr |
Physiological and biochemical characterization of Azospirillum brasilense strains commonly used as plant growth-promoting rhizobacteria |
title_full_unstemmed |
Physiological and biochemical characterization of Azospirillum brasilense strains commonly used as plant growth-promoting rhizobacteria |
title_sort |
physiological and biochemical characterization of azospirillum brasilense strains commonly used as plant growth-promoting rhizobacteria |
url |
http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=47106 http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber= http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber= |
work_keys_str_mv |
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