Artículo
Melatonin production by rhizobacteria native strains: Towards sustainable plant growth promotion strategies
Jofré, María Florencia
; Mammana, Sabrina Belén
; Lopez Appiolaza, Carlos Martìn
; Silva, María Fernanda
; Gomez, Federico Jose Vicente
; Cohen, Ana Carmen
Fecha de publicación:
01/2023
Editorial:
John Wiley & Sons
Revista:
Physiologia Plantarum
ISSN:
0031-9317
e-ISSN:
1399-3054
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
In the current context of climate change and water deficit, the selection of native beneficial microorganisms, such as plant growth-promoting rhizobacteria (PGPR), has become a trend for sustainable agriculture due to their ability to improve plant?bacteria interaction with a minimal adverse effect on the soil microbiota compared to commercial PGPR. Until now, the production of phytohormones like melatonin (MT) by native PGPR and their effect on endogenous MT levels in plants have been poorly studied. MT is a ubiquitous phytohormone that protects plants against biotic and abiotic stress by improving the tolerance of stressed plants. In this work, the production of MT by two native PGPR, Enterobacter 64S1 and Pseudomonas 42P4, was evaluated and both PGPR were applied in Arabidopsis thaliana plants grown under drought conditions to assess the inoculation effects. Parameters such as plant growth, leaf cellular membrane damage, leaf protective compounds, and endogenous MT levels under drought and irrigation conditions were evaluated. The results demonstrated that the native strains Pseudomonas 42P4 and Enterobacter 64S1 produce MT and increase the content of endogenous MT in A. thaliana plants under drought. These native strains improved the tolerance of arabidopsis plants to drought by preventing oxidative and membrane damages and improving plant growth. To the best of our knowledge, this is the first report on MT production by native PGPR and their effects on endogenous MT levels in arabidopsis plants, setting the bases to elucidate the role of native PGPR on water deficit conditions.
Palabras clave:
MELATONIN PRODUCTION
,
PGPR
,
ARABIDOPSIS THALIANA
,
DROUGHT STRESS
,
DROUGHT STRESS
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Identificadores
Colecciones
Articulos(IBAM)
Articulos de INST.DE BIOLOGIA AGRICOLA DE MENDOZA
Articulos de INST.DE BIOLOGIA AGRICOLA DE MENDOZA
Citación
Jofré, María Florencia; Mammana, Sabrina Belén; Lopez Appiolaza, Carlos Martìn; Silva, María Fernanda; Gomez, Federico Jose Vicente; et al.; Melatonin production by rhizobacteria native strains: Towards sustainable plant growth promotion strategies; John Wiley & Sons; Physiologia Plantarum; 175; 1; 1-2023; 1-10
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