Regulation of production of the antifungal metabolite 2,4-diacetylphloroglucinol in Pseudomonas fluorescens F113: genetic analysis of phlF as a transcriptional repressor
Article Abstract:
Research has been conducted on the antifungal metabolite 2,4-diacetylphloroglucinol. The role of this metabolite in biocontrol capabilities of Pseudomonas fluorescence is discussed.
Publication Name: Microbiology
Subject: Biological sciences
ISSN: 1350-0872
Year: 2000
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Mutational disruption of the biosynthesis genes coding for the antifungal metabolite 2,4-diacetylphloroglucinol does not influence the ecological fitness of Pseudomonas fluorescens F113 in the rhizosphere of sugarbeets
Article Abstract:
Biosynthesis of the antibiotic 2,4-diacetylphloroglucinol (DAPG) does not appear to be necessary for the colonization and survival of Pseudomonas fluorescens F113 in the rhizosphere of sugarbeets. Comparison of F113 strains that either could or could not produce DAPG revealed no difference in persistence after 27 days in the rhizosphere in a soil microcosm. In addition, no differences were observed after nine subsequent growth-harvest cycles in the same soil.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1995
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Role of 2,4-diacetylphloroglucinol in the interactions of the biocontrol pseudomonad strain F113 with the potato cyst nematode Globodera rostochiensis
Article Abstract:
Pseudomonas fluorescens F113, which produces 2,4-diacetylphloroglucinol (DAPG), was studied as a possible control agent against the potato cyst nematode Globodera rostochiensis. Exposure of nematode cysts to the pseudomonad almost doubled the capacity of the eggs to hatch. The number of mobile juveniles dropped by threefold after incubation in the presence of the pseudomonad. Findings with a transposon-induced DAPG-negative biosynthetic mutant of F113 and its complemented derivative with restored DAPG synthesis revealed that the capacity of strain F113 to produce DAPG was the cause of the increase in hatch ability and the decrease in juvenile mobility.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1997
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