A volatile relationship: profiling an inter-kingdom dialogue between two plant pathogens, Ralstonia Solanacearum and Aspergillus Flavus.
J Chem Ecol
; 40(5): 502-13, 2014 May.
Article
en En
| MEDLINE
| ID: mdl-24801606
ABSTRACT
Microbes in the rhizosphere have a suite of extracellular compounds, both primary and secondary, that communicate with other organisms in their immediate environment. Here, we describe a two-way volatile interaction between two widespread and economically important soil-borne pathogens of peanut, Aspergillus flavus and Ralstonia solanacearum, a fungus and bacterium, respectively. In response to A. flavus volatiles, R. solanacearum reduced production of the major virulence factor extracellular polysaccharide (EPS). In parallel, A. flavus responded to R. solanacearum volatiles by reducing conidia production, both on plates and on peanut seeds and by increasing aflatoxin production on peanut. Volatile profiling of these organisms using solid-phase micro-extraction gas chromatography mass spectroscopy (SPME-GCMS) provided a first glimpse at the compounds that may drive these interactions.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Arachis
/
Enfermedades de las Plantas
/
Aspergillus flavus
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Ralstonia solanacearum
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Interacciones Microbianas
Idioma:
En
Revista:
J Chem Ecol
Año:
2014
Tipo del documento:
Article
País de afiliación:
Estados Unidos