| Title: | "A volatile relationship: profiling an inter-kingdom dialogue between two plant pathogens, Ralstonia Solanacearum and Aspergillus Flavus" |
| Author(s): | Spraker JE; Jewell K; Roze LV; Scherf J; Ndagano D; Beaudry R; Linz JE; Allen C; Keller NP; |
| Address: | "Department of Plant Pathology, University of Wisconsin-Madison, 53706, Madison, WI, USA" |
| DOI: | 10.1007/s10886-014-0432-2 |
| ISSN/ISBN: | 1573-1561 (Electronic) 0098-0331 (Linking) |
| 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" |
| Keywords: | "Aflatoxins/metabolism Arachis/*microbiology Aspergillus flavus/*physiology *Microbial Interactions Plant Diseases/*microbiology Polysaccharides, Bacterial/metabolism Ralstonia solanacearum/*physiology Volatile Organic Compounds/metabolism;" |
| Notes: | "MedlineSpraker, Joseph E Jewell, Kelsea Roze, Ludmila V Scherf, Jacob Ndagano, Dora Beaudry, Randolph Linz, John E Allen, Caitilyn Keller, Nancy P eng Research Support, U.S. Gov't, Non-P.H.S. 2014/05/08 J Chem Ecol. 2014 May; 40(5):502-13. doi: 10.1007/s10886-014-0432-2. Epub 2014 May 7" |
