An overview of recent genomic research on biocontrol pseudomonad strains isolated from the field in Japan

Japan Agricultural Research Quarterly
ISSN 00213551
NII recode ID (NCID) AA0068709X
Full text
Many root-colonizing Pseudomonas spp. exhibiting biocontrol activities produce a wide variety of secondary metabolites with antibiotic activity against plant pathogens in the rhizosphere. Among these metabolites, 2,4-diacetylphloroglucinol (DAPG) is one of the most typical antibiotics in model biocontrol strains of Pseudomonas protegens. We screened DAPG-producing strains among 2,800 fluorescent pseudomonads isolated from the field in Japan. In addition to P. protegens, several other strains close to, but different from, P. protegens have been identified and found to exhibit biocontrol activity. Recent advances in genomic research on these strains revealed that they build up strain-specific genomic repertoires for the biosynthesis of secondary metabolites and niche adaptation. In this mini-review, we introduced our recent genome-based characterization of P. protegens and related strains. Comparative genome analyses in combination with different bioassays have become a powerful tool for the identification of novel biocontrol factors of potentially beneficial strains.
Date of issued
Creator Takeuchi Kasumi Someya Nobutaka
Subject biocontrol genome analysis pseudomonads rhizosphere secondary metabolites
Publisher Japan International Research Center for Agricultural Sciences
Received Date 2018-03-23
Accepted Date 2018-09-10
Volume 53
Issue 2
spage 87
epage 91
DOI 10.6090/jarq.53.87
Language eng

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