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Phytohormones and induction of plant-stress tolerance and defense genes by seed and foliar inoculation with Azospirillum brasilense cells and metabolites promote maize growth

Opened Access Phytohormones and induction of plant-stress tolerance and defense genes by seed and foliar inoculation with Azospirillum brasilense cells and metabolites promote maize growth

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Autor: Fukami, Josiane
Ollero Márquez, Francisco Javier
Megías Guijo, Manuel
Hungria, Mariangela
Departamento: Universidad de Sevilla. Departamento de Microbiología
Fecha: 2017
Publicado en: AMB Express, 7 (153), 1-13.
Tipo de documento: Artículo
Resumen: Azospirillum spp. are plant-growth-promoting bacteria used worldwide as inoculants for a variety of crops. Among the beneficial mechanisms associated with Azospirillum inoculation, emphasis has been given to the biological nitrogen fixation process and to the synthesis of phytohormones. In Brazil, the application of inoculants containing A. brasilense strains Ab-V5 and Ab-V6 to cereals is exponentially growing and in this study we investigated the effects of maize inoculation with these two strains applied on seeds or by leaf spray at the V2.5 stage growth—a strategy to relieve incompatibility with pesticides used for seed treatment. We also investigate the effects of spraying the metabolites of these two strains at V2.5. Maize growth was promoted by the inoculation of bacteria and their metabolites. When applied via foliar spray, although A. brasilense survival on leaves was confirmed by confocal microscopy and cell recovery, few cells were detected after 24 h, indicating that the ef...
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Cita: Fukami, J., Ollero Márquez, F.J., Megías Guijo, M. y Hungria, M. (2017). Phytohormones and induction of plant-stress tolerance and defense genes by seed and foliar inoculation with Azospirillum brasilense cells and metabolites promote maize growth. AMB Express, 7 (153), 1-13.
Tamaño: 1.319Mb
Formato: PDF

URI: https://hdl.handle.net/11441/70216

DOI: 10.1186/s13568-017-0453-7

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