Antagonistic activity among 2,4-diacetylphloroglucinol-producing fluorescentPseudomonasspp.
Open Access
- 1 January 2005
- journal article
- Published by Oxford University Press (OUP) in FEMS Microbiology Letters
- Vol. 242 (2) , 249-256
- https://doi.org/10.1016/j.femsle.2004.11.013
Abstract
Strains of fluorescent Pseudomonas spp. that produce 2,4-diacetylphloroglucinol (2,4-DAPG) differ in their ability to colonize roots. In this study, we screened 47 2,4-DAPG-producing strains representing17 distinct genotypes for antagonistic activity associated with the production of bacteriocins. Upon induction, over 70% of the strains inhibited the growth of other isolates in vitro. Greenhouse assays indicated that populations of sensitive strains in wheat rhizosphere soil declined more rapidly in the presence of antagonists than when introduced alone. Antagonism can influence the ability of biocontrol agents to establish and maintain effective population densities in situ.Keywords
This publication has 20 references indexed in Scilit:
- Bacteriocins: Evolution, Ecology, and ApplicationAnnual Review of Microbiology, 2002
- Identification of Differences in Genome Content among phlD -Positive Pseudomonas fluorescens Strains by Using PCR-Based Subtractive HybridizationApplied and Environmental Microbiology, 2002
- MICROBIALPOPULATIONSRESPONSIBLE FORSPECIFICSOILSUPPRESSIVENESS TOPLANTPATHOGENSAnnual Review of Phytopathology, 2002
- Bacteria killing their own kind: novel bacteriocins of Pseudomonas and other γ-proteobacteriaTrends in Microbiology, 2002
- Comparison of Three Methods for Monitoring Populations of Different Genotypes of 2,4-Diacetylphloroglucinol-Producing Pseudomonas fluorescens in the RhizospherePhytopathology®, 2002
- Exploiting Genotypic Diversity of 2,4-Diacetylphloroglucinol-Producing Pseudomonas spp.: Characterization of Superior Root-Colonizing P. fluorescens Strain Q8r1-96Applied and Environmental Microbiology, 2001
- Genetic Diversity of phlD from 2,4-Diacetylphloroglucinol-Producing Fluorescent Pseudomonas spp.Phytopathology®, 2001
- Genotypic and Phenotypic Diversity of phlD -Containing Pseudomonas Strains Isolated from the Rhizosphere of WheatApplied and Environmental Microbiology, 2000
- Role of Fluorescent Siderophore Production in Biological Control ofPythium ultimumby aPseudomonas fluorescensStrainPhytopathology®, 1987
- Chapter III Pyocin Typing of Pseudornonas aeruginosaPublished by Elsevier ,1978