Isolation of <i>Pseudomonas</i> Strains with Potential for Protection of Soybean Plants against Saline Stress

Salinity is a major detrimental factor for plant growth and crop productivity that could be alleviated by the use of plant growth promoting bacteria (PGPB) with a protective role in such stressful conditions. In this study, four native strains of the genus <i>Pseudomonas</i> were isolate...

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Autores principales:	Stefanie Bernardette Costa-Gutierrez, María Carolina del Valle Caram-Di Santo, Ana María Zenoff, Manuel Espinosa-Urgel, Ricardo Ezequiel de Cristóbal, Paula Andrea Vincent
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	plant-growth-promoting bacteria salinity rhizosphere sustainable agriculture Agriculture S
Acceso en línea:	https://doaj.org/article/f986629b8ced40d58cca9e3093316aa6
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spelling	oai:doaj.org-article:f986629b8ced40d58cca9e3093316aa62021-11-25T16:07:59ZIsolation of <i>Pseudomonas</i> Strains with Potential for Protection of Soybean Plants against Saline Stress10.3390/agronomy111122362073-4395https://doaj.org/article/f986629b8ced40d58cca9e3093316aa62021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4395/11/11/2236https://doaj.org/toc/2073-4395Salinity is a major detrimental factor for plant growth and crop productivity that could be alleviated by the use of plant growth promoting bacteria (PGPB) with a protective role in such stressful conditions. In this study, four native strains of the genus <i>Pseudomonas</i> were isolated from both a strongly saline soil and the rhizosphere of soybean plants grown in a slightly saline soil. These isolates were able to tolerate high NaCl concentration, showed efficient adhesion to biotic and abiotic surfaces and efficiently colonized the rhizosphere of soybean grown in slightly saline soil. In these conditions, the four strains outperformed <i>Pseudomonas putida</i> KT2440, a strain known as a good root colonizer of different plants. Inoculation with all the isolates improved seed germination and vigor index, particularly in saline conditions, and one of them also had a positive effect on shoot length and phenological state of soybean plants grown in slightly saline soil. Our results suggest that the search for classical plant growth promotion traits may not be mandatory for selecting putative PGPB. Instead, characteristics such as stress tolerance, adhesion, competitive colonization, and plant growth promotion should be tested using the soil types and crops in which the bacteria will be used.Stefanie Bernardette Costa-GutierrezMaría Carolina del Valle Caram-Di SantoAna María ZenoffManuel Espinosa-UrgelRicardo Ezequiel de CristóbalPaula Andrea VincentMDPI AGarticleplant-growth-promoting bacteriasalinityrhizospheresustainable agricultureAgricultureSENAgronomy, Vol 11, Iss 2236, p 2236 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	plant-growth-promoting bacteria salinity rhizosphere sustainable agriculture Agriculture S
spellingShingle	plant-growth-promoting bacteria salinity rhizosphere sustainable agriculture Agriculture S Stefanie Bernardette Costa-Gutierrez María Carolina del Valle Caram-Di Santo Ana María Zenoff Manuel Espinosa-Urgel Ricardo Ezequiel de Cristóbal Paula Andrea Vincent Isolation of <i>Pseudomonas</i> Strains with Potential for Protection of Soybean Plants against Saline Stress
description	Salinity is a major detrimental factor for plant growth and crop productivity that could be alleviated by the use of plant growth promoting bacteria (PGPB) with a protective role in such stressful conditions. In this study, four native strains of the genus <i>Pseudomonas</i> were isolated from both a strongly saline soil and the rhizosphere of soybean plants grown in a slightly saline soil. These isolates were able to tolerate high NaCl concentration, showed efficient adhesion to biotic and abiotic surfaces and efficiently colonized the rhizosphere of soybean grown in slightly saline soil. In these conditions, the four strains outperformed <i>Pseudomonas putida</i> KT2440, a strain known as a good root colonizer of different plants. Inoculation with all the isolates improved seed germination and vigor index, particularly in saline conditions, and one of them also had a positive effect on shoot length and phenological state of soybean plants grown in slightly saline soil. Our results suggest that the search for classical plant growth promotion traits may not be mandatory for selecting putative PGPB. Instead, characteristics such as stress tolerance, adhesion, competitive colonization, and plant growth promotion should be tested using the soil types and crops in which the bacteria will be used.
format	article
author	Stefanie Bernardette Costa-Gutierrez María Carolina del Valle Caram-Di Santo Ana María Zenoff Manuel Espinosa-Urgel Ricardo Ezequiel de Cristóbal Paula Andrea Vincent
author_facet	Stefanie Bernardette Costa-Gutierrez María Carolina del Valle Caram-Di Santo Ana María Zenoff Manuel Espinosa-Urgel Ricardo Ezequiel de Cristóbal Paula Andrea Vincent
author_sort	Stefanie Bernardette Costa-Gutierrez
title	Isolation of <i>Pseudomonas</i> Strains with Potential for Protection of Soybean Plants against Saline Stress
title_short	Isolation of <i>Pseudomonas</i> Strains with Potential for Protection of Soybean Plants against Saline Stress
title_full	Isolation of <i>Pseudomonas</i> Strains with Potential for Protection of Soybean Plants against Saline Stress
title_fullStr	Isolation of <i>Pseudomonas</i> Strains with Potential for Protection of Soybean Plants against Saline Stress
title_full_unstemmed	Isolation of <i>Pseudomonas</i> Strains with Potential for Protection of Soybean Plants against Saline Stress
title_sort	isolation of <i>pseudomonas</i> strains with potential for protection of soybean plants against saline stress
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/f986629b8ced40d58cca9e3093316aa6
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Isolation of <i>Pseudomonas</i> Strains with Potential for Protection of Soybean Plants against Saline Stress

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