Título

Inoculation of nitrogen-fixing halobacteria in the contribution to tolerance to salt stress in bean tepary

Autor

PRABHAHARAN RENGANATHAN

Jesús Borboa Flores

EMA CARINA ROSAS BURGOS

JOSE LUIS CARDENAS LOPEZ

Bernardo Murillo Amador

Jesús Ortega García

Edgar Omar Rueda Puente

Nivel de Acceso

Acceso Abierto

Licencia

http://creativecommons.org/licenses/by-nc-nd/4.0

Referencia de publicación

ISSN/ISSN: 2007-0934

doi: https://cienciasagricolas.inifap.gob.mx/index.php/busqueda

Materias

Azospirillum halopraeferens, Bacillus amyloliquefaciens, Phaseolus acutifolius, nitrogen fixation, saline stress - (AUTOR) BIOLOGÍA Y QUÍMICA - (CTI) CIENCIAS DE LA VIDA - (CTI) BIOLOGÍA VEGETAL (BOTÁNICA) - (CTI) FIJACIÓN BIOLÓGICA DEL NITRÓGENO - (CTI) FIJACIÓN BIOLÓGICA DEL NITRÓGENO - (CTI)

Resumen o descripción

"Drought tolerant tepary bean (Phaseolus acutifolius A. Gray) is a microbiologically unexplored culture in arid regions of Mexico where it is consumed as a source of dietary protein. However, soil salinity hinders the productivity of this crop. The isolation of specific halotolerant nitrogen-fixing bacteria (BFN) could be a novel practice to improve salt tolerance and improve crop productivity. In the present study, 24 BFN were isolated from seeds of three tepary ecotypes exposed to high salinities (0, 0.25 and 0.5 M NaCl) in vitro. Nitrogen-fixing halotolerant strains were characterized. Among the halotolerant isolates, only one showed high nitrogenous activity of 6.97 ±1.1 nmol of culture h-1. From the 16S analysis of rRNA, the halotolerant microorganism exhibited 99% sequence homology with the known bacterium Bacillus amyloliquefaciens. The results show that the inoculation with the identified halotolerant isolate had stimulating effects on growth parameters, seed germination, seed emergence, shoot length, root length, biomass, foliar chlorophyll and protein content, ash and crude fibers."

Editor

Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias

Fecha de publicación

2018

Tipo de publicación

Artículo

Versión de la publicación

Versión publicada

Recurso de información

http://cibnor.repositorioinstitucional.mx/jspui/handle/1001/1634

Formato

application/pdf

Fuente

Revista Mexicana de Ciencias Agrícolas

Idioma

Inglés

Repositorio Orígen

Repositorio Institucional CIBNOR

Descargas

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