Diversity and stress tolerance in rhizobia from Parque Chaqueño region of Argentina nodulating Prosopis alba

The aim of this work was to investigate the genetic diversity, symbiotic effectiveness, drought tolerance, and indole acetic acid production of indigenous rhizobial populations in the Parque Chaqueño of Argentina able to nodulate Prosopis alba, the dominant forest tree of this region. The population...

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Autores principales: Chávez Díaz, L., González, P., Rubio, E., Melchiorre, M.
Formato: JOUR
Lenguaje:English
Materias:
Parque Chaqueño
Prosopis alba
Rhizobial diversity
Symbiosis
acetic acid
drought
growth rate
nodulation
rhizobacterium
species diversity
stress
symbiosis
tree
Argentina
Bradyrhizobium
Ensifer
Mesorhizobium
Mesorhizobium chacoense
Prosopis
Rhizobiaceae
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_01782762_v49_n8_p1153_ChavezDiaz
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_01782762_v49_n8_p1153_ChavezDiaz
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spelling todo:paper_01782762_v49_n8_p1153_ChavezDiaz2023-10-03T15:08:16Z Diversity and stress tolerance in rhizobia from Parque Chaqueño region of Argentina nodulating Prosopis alba Chávez Díaz, L. González, P. Rubio, E. Melchiorre, M. Parque Chaqueño Prosopis alba Rhizobial diversity Symbiosis acetic acid drought growth rate nodulation rhizobacterium species diversity stress symbiosis tree Argentina Bradyrhizobium Ensifer Mesorhizobium Mesorhizobium chacoense Prosopis Prosopis alba Rhizobiaceae The aim of this work was to investigate the genetic diversity, symbiotic effectiveness, drought tolerance, and indole acetic acid production of indigenous rhizobial populations in the Parque Chaqueño of Argentina able to nodulate Prosopis alba, the dominant forest tree of this region. The populations were sampled at five locations from the Arid, Semi-arid, and Humid Chaco in the Parque Chaqueño region. A set of rhizobial strains able to nodulate P. alba was obtained and selected based on their molecular diversity. Data obtained by BOX-PCR indicated that the highest molecular variability was observed in rhizobial isolates from Semi-arid Chaco. High level of indolic compound production and tolerance to osmotic treatment were significantly (p ≤ 0.05) correlated with water restrictions of the environments where the strains belonged. A small set of rhizobial strains that stimulate P. alba growth was selected from a large group of strains. The strains were identified by 16S rDNA sequencing as belonging to the genera Mesorhizobium, Bradyrhizobium, and Ensifer. To our knowledge, this is the first report of P. alba nodulation by strains other than Mesorhizobium chacoense, which was already described for the Parque Chaqueño. © 2013 Springer-Verlag Berlin Heidelberg. JOUR English info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_01782762_v49_n8_p1153_ChavezDiaz
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
language English
orig_language_str_mv English
topic Parque Chaqueño
Prosopis alba
Rhizobial diversity
Symbiosis
acetic acid
drought
growth rate
nodulation
rhizobacterium
species diversity
stress
symbiosis
tree
Argentina
Bradyrhizobium
Ensifer
Mesorhizobium
Mesorhizobium chacoense
Prosopis
Prosopis alba
Rhizobiaceae
spellingShingle Parque Chaqueño
Prosopis alba
Rhizobial diversity
Symbiosis
acetic acid
drought
growth rate
nodulation
rhizobacterium
species diversity
stress
symbiosis
tree
Argentina
Bradyrhizobium
Ensifer
Mesorhizobium
Mesorhizobium chacoense
Prosopis
Prosopis alba
Rhizobiaceae
Chávez Díaz, L.
González, P.
Rubio, E.
Melchiorre, M.
Diversity and stress tolerance in rhizobia from Parque Chaqueño region of Argentina nodulating Prosopis alba
topic_facet Parque Chaqueño
Prosopis alba
Rhizobial diversity
Symbiosis
acetic acid
drought
growth rate
nodulation
rhizobacterium
species diversity
stress
symbiosis
tree
Argentina
Bradyrhizobium
Ensifer
Mesorhizobium
Mesorhizobium chacoense
Prosopis
Prosopis alba
Rhizobiaceae
description The aim of this work was to investigate the genetic diversity, symbiotic effectiveness, drought tolerance, and indole acetic acid production of indigenous rhizobial populations in the Parque Chaqueño of Argentina able to nodulate Prosopis alba, the dominant forest tree of this region. The populations were sampled at five locations from the Arid, Semi-arid, and Humid Chaco in the Parque Chaqueño region. A set of rhizobial strains able to nodulate P. alba was obtained and selected based on their molecular diversity. Data obtained by BOX-PCR indicated that the highest molecular variability was observed in rhizobial isolates from Semi-arid Chaco. High level of indolic compound production and tolerance to osmotic treatment were significantly (p ≤ 0.05) correlated with water restrictions of the environments where the strains belonged. A small set of rhizobial strains that stimulate P. alba growth was selected from a large group of strains. The strains were identified by 16S rDNA sequencing as belonging to the genera Mesorhizobium, Bradyrhizobium, and Ensifer. To our knowledge, this is the first report of P. alba nodulation by strains other than Mesorhizobium chacoense, which was already described for the Parque Chaqueño. © 2013 Springer-Verlag Berlin Heidelberg.
format JOUR
author Chávez Díaz, L.
González, P.
Rubio, E.
Melchiorre, M.
author_facet Chávez Díaz, L.
González, P.
Rubio, E.
Melchiorre, M.
author_sort Chávez Díaz, L.
title Diversity and stress tolerance in rhizobia from Parque Chaqueño region of Argentina nodulating Prosopis alba
title_short Diversity and stress tolerance in rhizobia from Parque Chaqueño region of Argentina nodulating Prosopis alba
title_full Diversity and stress tolerance in rhizobia from Parque Chaqueño region of Argentina nodulating Prosopis alba
title_fullStr Diversity and stress tolerance in rhizobia from Parque Chaqueño region of Argentina nodulating Prosopis alba
title_full_unstemmed Diversity and stress tolerance in rhizobia from Parque Chaqueño region of Argentina nodulating Prosopis alba
title_sort diversity and stress tolerance in rhizobia from parque chaqueño region of argentina nodulating prosopis alba
url http://hdl.handle.net/20.500.12110/paper_01782762_v49_n8_p1153_ChavezDiaz
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