Deletion of the Nonribosomal Peptide Synthetase Gene nps1 in the Fungus Clonostachys rosea Attenuates Antagonism and Biocontrol of Plant Pathogenic Fusarium and Nematodes

Abstract

Secondary metabolites produced by biological control agents may influence the outcome of their interactions with plant pathogenic microorganisms and plants. In the present study, we investigated the role of the nonribosomal peptide synthetase gene nps1 expressed by the biocontrol fungus Clonostachys rosea. A gene expression analysis showed that nps1 was induced during confrontations with the plant pathogenic fungus Botrytis cinerea. Gene deletion strains of nps1 displayed increased growth rates and conidiation. However, the nematicidal activity of culture filtrates from C. rosea Delta nps1 strains was significantly weaker than that from wild-type filtrates (P

Keywords

antagonism; plant growth; wheat

Published in

Phytopathology
2019, volume: 109, number: 10, pages: 1698-1709
Publisher: AMER PHYTOPATHOLOGICAL SOC

SLU Authors

• Iqbal, Mudassir

  • Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences
    

• Dubey, Mukesh

  • Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences
    

• Broberg, Anders

  • Department of Molecular Sciences, Swedish University of Agricultural Sciences
    

• Viketoft, Maria

  • Department of Ecology, Swedish University of Agricultural Sciences
    

• Jensen, Dan Funck

  • Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences
    

• Karlsson, Magnus

  • Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences
    

Associated SLU-program

SLU Plant Protection Network

UKÄ Subject classification

Microbiology
Agricultural Science

Publication identifier

• DOI: https://doi.org/10.1094/PHYTO-02-19-0042-R

Permanent link to this page (URI)

https://res.slu.se/id/publ/102290