Response of Pseudomonas tolaasii, the causal agent of mushroom brown blotch disease to the volatile compounds produced by endofungal bacteria
Type de document
journalArticle
Langue source
Anglais
Titre français
Titre anglais
Response of Pseudomonas tolaasii, the causal agent of mushroom brown blotch disease to the volatile compounds produced by endofungal bacteria
Auteur(s)
- GHASEMI Samira
- HARIGHI Behrouz
- MOJARRAB Mahdi
- AZIZI Abdolbaset
Editeur(s)
Autre(s)
Id
KDL8TGZ4
Version
2346
Date ajout
15 janvier 2021 23:33
Date modification
15 janvier 2021 23:33
Résumé anglais
Volatile organic compounds (VOCs) produced by bacteria have significant potential to control phytopathogens. In this study, the VOCs produced by endofungal bacteria Pseudomonas sp. Bi1, Bacillus sp. De3, Pantoea sp. Ma3 and Pseudomonas sp. De1 isolated from wild growing mushrooms were evaluated in vitro for their antagonistic activity against Pseudomonas tolaasii Pt18, the causal agent of mushroom brown blotch disease. The gas chromatography–mass spectrometry (GC–MS) analysis revealed that strains Pseudomonas sp. Bi1, Pseudomonas sp. De1, Bacillus sp. De3 and Pantoea sp. Ma3 produced eight, sixteen, nine, and twelve VOCs, respectively. All antagonistic endofungal bacteria produced VOCs which significantly reduced brown blotch symptoms on mushroom caps and inhibited the growth of P. tolaasii Pt18 at the varying levels. Scanning electron microscopy revealed severe morphological changes in cells of P. tolaasii Pt18 following exposure to the VOCs of Pseudomonas sp. Bi1 and De1. Furthermore, The VOCs produced by endofungal bacteria significantly reduced swarming, swimming, twitching, chemotaxis motility and biofilm formation by P. tolaasii Pt18 cells, which are essential contributors to pathogenicity. This is to first report about the inhibition effects of VOCs produced by antagonistic bacteria on virulence traits of P. tolaasii. Our findings provide new insights regarding the potential of antibacterial VOCs as a safe fumigant to control mushroom brown blotch disease.
Note
None
CRAW tags
- AB - Utile à l'AB
- FREDO lutte
- FREDO santé végétale
- GEO Iran
- biocontrol
- légume
- mushroom
WEB tags
Titre de la publication
BioControl
Date caractères
2021-01-03
Date publication
3 janvier 2021
Doi
10.1007/s10526-020-10071-6
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Issn
1573-8248
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