Micromonospora from nitrogen fixing nodules of alfalfa (Medicago sativa L.). A new promising Plant Probiotic Bacteria

Micromonospora from nitrogen fixing nodules of alfalfa (Medicago sativa L.). A new promising Plant Probiotic Bacteria

10 p.: 3 figuras, 3 tablas

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Main Authors: Martínez Hidalgo, Pilar, Galindo Villardón, Purificación, Igual, José Mariano, Martínez Molina, Eustoquio
Format: artículo biblioteca
Language:English
Published: Nature Publishing Group
Online Access:http://hdl.handle.net/10261/103028
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spelling dig-irnasa-es-10261-1030282021-12-28T16:15:01Z Micromonospora from nitrogen fixing nodules of alfalfa (Medicago sativa L.). A new promising Plant Probiotic Bacteria Martínez Hidalgo, Pilar Galindo Villardón, Purificación Igual, José Mariano Martínez Molina, Eustoquio 10 p.: 3 figuras, 3 tablas Biotic interactions can improve agricultural productivity without costly and environmentally challenging inputs. Micromonospora strains have recently been reported as natural endophytes of legume nodules but their significance for plant development and productivity has not yet been established. The aim of this study was to determine the diversity and function of Micromonospora isolated from Medicago sativa root nodules. Micromonospora-like strains from field alfalfa nodules were characterized by BOX-PCR fingerprinting and 16S rRNA gene sequencing. The ecological role of the interaction of the 15 selected representative Micromonospora strains was tested in M. sativa. Nodulation, plant growth and nutrition parameters were analyzed. Alfalfa nodules naturally contain abundant and highly diverse populations of Micromonospora, both at the intra- and at interspecific level. Selected Micromonospora isolates significantly increase the nodulation of alfalfa by Ensifer meliloti 1021 and also the efficiency of the plant for nitrogen nutrition. Moreover, they promote aerial growth, the shoot-to-root ratio, and raise the level of essential nutrients. Our results indicate that Micromonospora acts as a Rhizobia Helper Bacteria (RHB) agent and has probiotic effects, promoting plant growth and increasing nutrition efficiency. Its ecological role, biotechnological potential and advantages as a plant probiotic bacterium (PPB) are also discussed. This work was supported by Junta de Castilla y León Grant SA306A11-2 and MICINN Grant AGL2010-17380. P.M.-H. was supported by a fellowship from CSIC JAE-PRE. Peer reviewed 2014-09-17 artículo http://purl.org/coar/resource_type/c_6501 Scientific Reports 4: 6389 (2014) http://hdl.handle.net/10261/103028 10.1038/srep06389 2045-2322 25227415 en Publisher's version http://dx.doi.org/10.1038/srep06389 Sí open Nature Publishing Group
institution IRNASA ES
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country España
countrycode ES
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libraryname Biblioteca del IRNASA España
language English
description 10 p.: 3 figuras, 3 tablas
format artículo
author Martínez Hidalgo, Pilar
Galindo Villardón, Purificación
Igual, José Mariano
Martínez Molina, Eustoquio
spellingShingle Martínez Hidalgo, Pilar
Galindo Villardón, Purificación
Igual, José Mariano
Martínez Molina, Eustoquio
Micromonospora from nitrogen fixing nodules of alfalfa (Medicago sativa L.). A new promising Plant Probiotic Bacteria
author_facet Martínez Hidalgo, Pilar
Galindo Villardón, Purificación
Igual, José Mariano
Martínez Molina, Eustoquio
author_sort Martínez Hidalgo, Pilar
title Micromonospora from nitrogen fixing nodules of alfalfa (Medicago sativa L.). A new promising Plant Probiotic Bacteria
title_short Micromonospora from nitrogen fixing nodules of alfalfa (Medicago sativa L.). A new promising Plant Probiotic Bacteria
title_full Micromonospora from nitrogen fixing nodules of alfalfa (Medicago sativa L.). A new promising Plant Probiotic Bacteria
title_fullStr Micromonospora from nitrogen fixing nodules of alfalfa (Medicago sativa L.). A new promising Plant Probiotic Bacteria
title_full_unstemmed Micromonospora from nitrogen fixing nodules of alfalfa (Medicago sativa L.). A new promising Plant Probiotic Bacteria
title_sort micromonospora from nitrogen fixing nodules of alfalfa (medicago sativa l.). a new promising plant probiotic bacteria
publisher Nature Publishing Group
url http://hdl.handle.net/10261/103028
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