David M Weller

Summary

Affiliation: Washington State University
Country: USA

Publications

  1. ncbi request reprint Microbial populations responsible for specific soil suppressiveness to plant pathogens
    David M Weller
    USDA, Agricultural Research Service, Root Disease and Biological Control Research Unit, Washington State University, Pullman 99164 6430, USA
    Annu Rev Phytopathol 40:309-48. 2002
  2. pmc Diversity and evolution of the phenazine biosynthesis pathway
    Dmitri V Mavrodi
    Department of Plant Pathology, Washington State University, Pullman, WA 99164 6430, USA
    Appl Environ Microbiol 76:866-79. 2010
  3. pmc Quantification of 2,4-diacetylphloroglucinol-producing Pseudomonas fluorescens strains in the plant rhizosphere by real-time PCR
    Olga V Mavrodi
    Department of Plant Pathology, Washington State University, Pullman, Washington 99164 6430, USA
    Appl Environ Microbiol 73:5531-8. 2007
  4. pmc Accumulation of the antibiotic phenazine-1-carboxylic acid in the rhizosphere of dryland cereals
    Dmitri V Mavrodi
    Department of Plant Pathology, Washington State University, Pullman, Washington, USA
    Appl Environ Microbiol 78:804-12. 2012
  5. pmc Role of ptsP, orfT, and sss recombinase genes in root colonization by Pseudomonas fluorescens Q8r1-96
    Olga V Mavrodi
    Department of Plant Pathology, Washington State University, Pullman, WA 99164 6430, USA
    Appl Environ Microbiol 72:7111-22. 2006
  6. pmc Irrigation differentially impacts populations of indigenous antibiotic-producing pseudomonas spp. in the rhizosphere of wheat
    Olga V Mavrodi
    Department of Plant Pathology, Washington State University, Pullman, Washington, USA
    Appl Environ Microbiol 78:3214-20. 2012
  7. pmc Structural and functional analysis of the type III secretion system from Pseudomonas fluorescens Q8r1-96
    Dmitri V Mavrodi
    Department of Plant Pathology, Washington State University, Pullman, Washington 99164 6430, USA
    J Bacteriol 193:177-89. 2011
  8. doi request reprint Isolation, characterization, and sensitivity to 2,4-diacetylphloroglucinol of isolates of Phialophora spp. from Washington wheat fields
    Youn Sig Kwak
    Department of Plant Pathology, Washington State University, Pullman, WA 99164 6430, USA
    Phytopathology 100:404-14. 2010
  9. doi request reprint Population structure and diversity of phenazine-1-carboxylic acid producing fluorescent Pseudomonas spp. from dryland cereal fields of central Washington State (USA)
    James A Parejko
    School of Molecular Biosciences, Washington State University, Pullman, WA 99164 4234, USA
    Microb Ecol 64:226-41. 2012
  10. ncbi request reprint phlD-based genetic diversity and detection of genotypes of 2,4-diacetylphloroglucinol-producing Pseudomonas fluorescens
    Leonardo De La Fuente
    Department of Plant Pathology, Washington State University, Pullman, WA, USA
    FEMS Microbiol Ecol 56:64-78. 2006

Collaborators

Detail Information

Publications19

  1. ncbi request reprint Microbial populations responsible for specific soil suppressiveness to plant pathogens
    David M Weller
    USDA, Agricultural Research Service, Root Disease and Biological Control Research Unit, Washington State University, Pullman 99164 6430, USA
    Annu Rev Phytopathol 40:309-48. 2002
    ..By coupling molecular technologies with traditional approaches used in plant pathology and microbiology, it is possible to dissect the microbial composition and complex interactions in suppressive soils...
  2. pmc Diversity and evolution of the phenazine biosynthesis pathway
    Dmitri V Mavrodi
    Department of Plant Pathology, Washington State University, Pullman, WA 99164 6430, USA
    Appl Environ Microbiol 76:866-79. 2010
    ....
  3. pmc Quantification of 2,4-diacetylphloroglucinol-producing Pseudomonas fluorescens strains in the plant rhizosphere by real-time PCR
    Olga V Mavrodi
    Department of Plant Pathology, Washington State University, Pullman, Washington 99164 6430, USA
    Appl Environ Microbiol 73:5531-8. 2007
    ..The greatest advantage of the developed real-time PCR is culture independence, which allows determination of population densities and the genotype composition of 2,4-DAPG producers directly from the plant rhizospheres and soil...
  4. pmc Accumulation of the antibiotic phenazine-1-carboxylic acid in the rhizosphere of dryland cereals
    Dmitri V Mavrodi
    Department of Plant Pathology, Washington State University, Pullman, Washington, USA
    Appl Environ Microbiol 78:804-12. 2012
    ..Our results strongly suggest that natural antibiotics can transiently accumulate in the plant rhizosphere in amounts sufficient not only for inter- and intraspecies signaling but also for the direct inhibition of sensitive organisms...
  5. pmc Role of ptsP, orfT, and sss recombinase genes in root colonization by Pseudomonas fluorescens Q8r1-96
    Olga V Mavrodi
    Department of Plant Pathology, Washington State University, Pullman, WA 99164 6430, USA
    Appl Environ Microbiol 72:7111-22. 2006
    ..However, all three mutants were less competitive than wild-type P. fluorescens Q8r1-96 in the wheat rhizosphere when they were introduced into the soil by paired inoculation with the parental strain...
  6. pmc Irrigation differentially impacts populations of indigenous antibiotic-producing pseudomonas spp. in the rhizosphere of wheat
    Olga V Mavrodi
    Department of Plant Pathology, Washington State University, Pullman, Washington, USA
    Appl Environ Microbiol 78:3214-20. 2012
    ..These results demonstrate how crop management practices can influence indigenous populations of antibiotic-producing pseudomonads with the capacity to suppress soilborne diseases of wheat...
  7. pmc Structural and functional analysis of the type III secretion system from Pseudomonas fluorescens Q8r1-96
    Dmitri V Mavrodi
    Department of Plant Pathology, Washington State University, Pullman, Washington 99164 6430, USA
    J Bacteriol 193:177-89. 2011
    ..The Q8r1-96 type III effectors RopAA, RopB, and RopM were capable of suppressing the hypersensitive response and production of reactive oxygen species, two plant immune responses...
  8. doi request reprint Isolation, characterization, and sensitivity to 2,4-diacetylphloroglucinol of isolates of Phialophora spp. from Washington wheat fields
    Youn Sig Kwak
    Department of Plant Pathology, Washington State University, Pullman, WA 99164 6430, USA
    Phytopathology 100:404-14. 2010
    ..tritici. To our knowledge, this study provides the first report of an avenacinase-like gene in Phialophora spp. and demonstrated that the fungus is significantly less sensitive to 2,4-DAPG than G. graminis var. tritici...
  9. doi request reprint Population structure and diversity of phenazine-1-carboxylic acid producing fluorescent Pseudomonas spp. from dryland cereal fields of central Washington State (USA)
    James A Parejko
    School of Molecular Biosciences, Washington State University, Pullman, WA 99164 4234, USA
    Microb Ecol 64:226-41. 2012
    ..In summary, this study revealed a genotypically and phenotypically diverse group of phenazine producers with a population structure not seen before in indigenous rhizosphere-inhabiting Phz(+) Pseudomonas spp...
  10. ncbi request reprint phlD-based genetic diversity and detection of genotypes of 2,4-diacetylphloroglucinol-producing Pseudomonas fluorescens
    Leonardo De La Fuente
    Department of Plant Pathology, Washington State University, Pullman, WA, USA
    FEMS Microbiol Ecol 56:64-78. 2006
    ..The allele-specific primer-based technique is a rapid method for studies of the interactions between genotypes of 2,4-diacetylphloroglucinol producers in natural environments...
  11. ncbi request reprint Enrichment and genotypic diversity of phlD-containing fluorescent Pseudomonas spp. in two soils after a century of wheat and flax monoculture
    Blanca B Landa
    Department of Plant Pathology, Washington State University, Pullman, WA 99164 6430, USA
    FEMS Microbiol Ecol 55:351-68. 2006
    ....
  12. doi request reprint Recent insights into the diversity, frequency and ecological roles of phenazines in fluorescent Pseudomonas spp
    Dmitri V Mavrodi
    Department of Plant Pathology, Washington State University, Pullman, WA 99164 6430, USA
    Environ Microbiol 15:675-86. 2013
    ..This minireview highlights some recent and exciting insights into the diversity, frequency and ecological roles of phenazines produced by fluorescent Pseudomonas spp...
  13. doi request reprint Diversity, virulence, and 2,4-diacetylphloroglucinol sensitivity of Gaeumannomyces graminis var. tritici isolates from Washington state
    Youn Sig Kwak
    Department of Plant Pathology, Washington State University, Pullman, WA 99164 6430, USA
    Phytopathology 99:472-9. 2009
    ..These results indicate that G. graminis var. tritici does not become less sensitive to 2,4-DAPG during extended wheat monoculture...
  14. pmc Saccharomyces cerevisiae genome-wide mutant screen for sensitivity to 2,4-diacetylphloroglucinol, an antibiotic produced by Pseudomonas fluorescens
    Youn Sig Kwak
    P O Box 646430, 367 Johnson Hall, Washington State University, Pullman, WA 99164 6430, USA
    Appl Environ Microbiol 77:1770-6. 2011
    ..Collectively, these findings indicate that 2,4-DAPG acts on multiple basic cellular processes...
  15. ncbi request reprint The role of dsbA in colonization of the wheat rhizosphere by Pseudomonas fluorescens Q8r1-96
    Olga V Mavrodi
    Department of Plant Pathology, Washington State University, Pullman, WA, USA
    Microbiology 152:863-72. 2006
    ..The results also suggest that exoenzymes and multimeric cell surface structures are unlikely to have a critical role in root colonization by this strain...
  16. pmc Taxonomy and distribution of phenazine-producing Pseudomonas spp. in the dryland agroecosystem of the Inland Pacific Northwest, United States
    James A Parejko
    School of Molecular Biosciences, Washington State University, Pullman, WA, USA
    Appl Environ Microbiol 79:3887-91. 2013
    ..Five distinct species were identified, two of which were provisionally considered to be new. Agroclimatic zone and soil silt content affected the species diversity across the region...
  17. doi request reprint Induced systemic resistance in arabidopsis thaliana against Pseudomonas syringae pv. tomato by 2,4-diacetylphloroglucinol-producing Pseudomonas fluorescens
    David M Weller
    United States Department of Agriculture Agricultural Research Service, Root Disease and Biological Control Research Unit, Pullman, WA 99164 6430, USA
    Phytopathology 102:403-12. 2012
    ..fluorescens, that the genotype of the strain does not affect its ISR activity, and that the activity induced by these bacteria operates through the ethylene- and jasmonic acid-dependent signal transduction pathway...
  18. pmc Differential ability of genotypes of 2,4-diacetylphloroglucinol-producing Pseudomonas fluorescens strains to colonize the roots of pea plants
    Blanca B Landa
    Root Disease and Biological Control Research Unit, Agricultural Research Service, U S Department of Agriculture, Pullman, WA 99164 6430, USA
    Appl Environ Microbiol 68:3226-37. 2002
    ..Genetic profiles generated by rep-PCR or restriction fragment length polymorphism analysis of the 2,4-DAPG biosynthetic gene phlD were predictive of the rhizosphere competence of the introduced 2,4-DAPG-producing strains...
  19. pmc Identification and manipulation of soil properties to improve the biological control performance of phenazine-producing Pseudomonas fluorescens
    Bonnie H Ownley
    Department of Entomology and Plant Pathology, The University of Tennessee, Knoxville, Tennessee 37996, USA
    Appl Environ Microbiol 69:3333-43. 2003
    ..We then investigated the negative correlation of OM with disease suppression and found that addition of OM (as wheat straw) at rates typical of high-OM soils significantly reduced biocontrol activity of 2-79RN(10)...