Modulatory effects of Mesorhizobium tianshanense and Glomus intraradices on plant proline and polyamine levels during early plant response of Lotus tenuis to salinity

Aims: The study aims (1) to evaluate the effect of Mesorhizobium tianshanense on plant proline and polyamine levels of Lotus tenuis and its modulatory effect during plant response to short-term salt stress and (2) to compare these effects with those caused by mycorrhizal symbiosis. Methods: Experime...

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Autores principales: Echeverria, M., Sannazzaro, A.I., Ruiz, O.A., Menéndez, A.B.
Formato: JOUR
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Acceso en línea:http://hdl.handle.net/20.500.12110/paper_0032079X_v364_n1-2_p69_Echeverria
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spelling todo:paper_0032079X_v364_n1-2_p69_Echeverria2023-10-03T14:44:52Z Modulatory effects of Mesorhizobium tianshanense and Glomus intraradices on plant proline and polyamine levels during early plant response of Lotus tenuis to salinity Echeverria, M. Sannazzaro, A.I. Ruiz, O.A. Menéndez, A.B. Glomus intraradices Lotus tenuis Mesorhizobium tianshanense Polyamines Proline amino acid divergence dose-response relationship experimental study metabolism nodulation plant community rhizobacterium root salinity salinization symbiosis Glomus intraradices Lotus tenuis Mesorhizobium Mesorhizobium tianshanense Aims: The study aims (1) to evaluate the effect of Mesorhizobium tianshanense on plant proline and polyamine levels of Lotus tenuis and its modulatory effect during plant response to short-term salt stress and (2) to compare these effects with those caused by mycorrhizal symbiosis. Methods: Experiments consisted of a randomized factorial design of two factors: salinity (two levels, 0 and 150 mM NaCl) and symbiosis (three levels, uninoculated, Glomus intraradices, and M. tianshanense). Results: Salinization led to increased proline levels regardless of plant organ and symbiotic status, excepting mycorrhizal L. tenuis roots. Salinity diminished the total polyamine level of control and rhizobial plants but not in mycorrhizal ones. Variations in the pattern response of the three individual polyamines (putrescine, spermidine, and spermine) differed in accordance with the symbiotic status of the plant, highlighting a divergence on proline and polyamine metabolisms between rhizobial and mycorrhizal symbiosis. Conclusions: Spermidine and spermine contributed the most with the salt-induced root polyamine increment observed upon salinization in roots of nodulated plants, suggesting that these polyamines might mediate an adaptive role of the plant-M. tianshanense symbiosis in L. tenuis plants growing in a saline environment. © 2012 Springer Science+Business Media B.V. Fil:Echeverria, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Menéndez, A.B. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_0032079X_v364_n1-2_p69_Echeverria
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Glomus intraradices
Lotus tenuis
Mesorhizobium tianshanense
Polyamines
Proline
amino acid
divergence
dose-response relationship
experimental study
metabolism
nodulation
plant community
rhizobacterium
root
salinity
salinization
symbiosis
Glomus intraradices
Lotus tenuis
Mesorhizobium
Mesorhizobium tianshanense
spellingShingle Glomus intraradices
Lotus tenuis
Mesorhizobium tianshanense
Polyamines
Proline
amino acid
divergence
dose-response relationship
experimental study
metabolism
nodulation
plant community
rhizobacterium
root
salinity
salinization
symbiosis
Glomus intraradices
Lotus tenuis
Mesorhizobium
Mesorhizobium tianshanense
Echeverria, M.
Sannazzaro, A.I.
Ruiz, O.A.
Menéndez, A.B.
Modulatory effects of Mesorhizobium tianshanense and Glomus intraradices on plant proline and polyamine levels during early plant response of Lotus tenuis to salinity
topic_facet Glomus intraradices
Lotus tenuis
Mesorhizobium tianshanense
Polyamines
Proline
amino acid
divergence
dose-response relationship
experimental study
metabolism
nodulation
plant community
rhizobacterium
root
salinity
salinization
symbiosis
Glomus intraradices
Lotus tenuis
Mesorhizobium
Mesorhizobium tianshanense
description Aims: The study aims (1) to evaluate the effect of Mesorhizobium tianshanense on plant proline and polyamine levels of Lotus tenuis and its modulatory effect during plant response to short-term salt stress and (2) to compare these effects with those caused by mycorrhizal symbiosis. Methods: Experiments consisted of a randomized factorial design of two factors: salinity (two levels, 0 and 150 mM NaCl) and symbiosis (three levels, uninoculated, Glomus intraradices, and M. tianshanense). Results: Salinization led to increased proline levels regardless of plant organ and symbiotic status, excepting mycorrhizal L. tenuis roots. Salinity diminished the total polyamine level of control and rhizobial plants but not in mycorrhizal ones. Variations in the pattern response of the three individual polyamines (putrescine, spermidine, and spermine) differed in accordance with the symbiotic status of the plant, highlighting a divergence on proline and polyamine metabolisms between rhizobial and mycorrhizal symbiosis. Conclusions: Spermidine and spermine contributed the most with the salt-induced root polyamine increment observed upon salinization in roots of nodulated plants, suggesting that these polyamines might mediate an adaptive role of the plant-M. tianshanense symbiosis in L. tenuis plants growing in a saline environment. © 2012 Springer Science+Business Media B.V.
format JOUR
author Echeverria, M.
Sannazzaro, A.I.
Ruiz, O.A.
Menéndez, A.B.
author_facet Echeverria, M.
Sannazzaro, A.I.
Ruiz, O.A.
Menéndez, A.B.
author_sort Echeverria, M.
title Modulatory effects of Mesorhizobium tianshanense and Glomus intraradices on plant proline and polyamine levels during early plant response of Lotus tenuis to salinity
title_short Modulatory effects of Mesorhizobium tianshanense and Glomus intraradices on plant proline and polyamine levels during early plant response of Lotus tenuis to salinity
title_full Modulatory effects of Mesorhizobium tianshanense and Glomus intraradices on plant proline and polyamine levels during early plant response of Lotus tenuis to salinity
title_fullStr Modulatory effects of Mesorhizobium tianshanense and Glomus intraradices on plant proline and polyamine levels during early plant response of Lotus tenuis to salinity
title_full_unstemmed Modulatory effects of Mesorhizobium tianshanense and Glomus intraradices on plant proline and polyamine levels during early plant response of Lotus tenuis to salinity
title_sort modulatory effects of mesorhizobium tianshanense and glomus intraradices on plant proline and polyamine levels during early plant response of lotus tenuis to salinity
url http://hdl.handle.net/20.500.12110/paper_0032079X_v364_n1-2_p69_Echeverria
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