Late blight on potato is suppressed by the biosurfactant-producing strain Pseudomonas koreensis 2.74 and its biosurfactant

Abstract

Potato late blight disease caused by the zoospore-producing pathogen Phytophthora infestans (Mont.) de Bary is one of the most destructive plant diseases world-wide and currently its management mainly relies on the frequent use of fungicides. This study investigated the possibility to reduce potato late blight through biocontrol with the biosurfactant-producing strain Pseudomonas koreensis 2.74. A significant disease reduction with the biosurfactant-producing strain and its biosurfactant was observed in greenhouse trials using a detached leaf assay. A direct effect of the biosurfactant on zoospores of P. infestans was also observed, while the biosurfactant only caused a minor reduction in mycelial growth rate and had no effect on the rate of sporangia production in pure culture

Keywords

Biocontrol; Biosurfactants; Phytophthora infestans; Potato late blight

Published in

BioControl
2010, volume: 55, number: 4, pages: 543-550
Publisher: Springer

SLU Authors

• Hultberg, Malin

  • Horticulture, Swedish University of Agricultural Sciences
    

• Bengtsson, Therese

  • Department of Plant Protection Biology, Swedish University of Agricultural Sciences
    

• Liljeroth, Erland

  • Department of Plant Protection Biology, Swedish University of Agricultural Sciences
    

UKÄ Subject classification

Environmental Sciences and Nature Conservation
Agricultural Science
Food Science

Publication identifier

• DOI: https://doi.org/10.1007/s10526-010-9289-7

Permanent link to this page (URI)

https://res.slu.se/id/publ/29668