What benefits of Pseudomonas chlororaphis have been cited in the scientific literature?
Pseudomonas chlororaphis is a soil rhizobacterium with a broad disease-suppression profile cited in the peer-reviewed literature. Research links it to control of Rhizoctonia root rot, take-all of wheat, Fusarium crown rot, gray mold and leaf blight in tomato, and Phytophthora infection in pistachio — with mechanisms including production of phenazines, pyrrolnitrine, hydrogen cyanide, siderophores, and volatile organic compounds.
For growers researching Pseudomonas chlororaphis nematode control, the literature reports efficacy against root-knot nematodes (Meloidogyne spp.) in tomato at levels comparable to commercial chemical nematicides. Insect suppression via antibiotics and volatile organic compounds is also reported in the research.
1Potential claims from the literature
Reported to suppress multiple plant diseases including Rhizoctonia root rot, take-all of wheat, leaf blight and gray mold in tomato, Fusarium crown rot in wheat, and Phytophthora infection in pistachio, through production of antibiotics (phenazines, pyrrolnitrine, hydrogen cyanide), siderophores, and volatile organic compounds.
Reported to suppress plant pests including nematodes and insects through antibiotics and volatile organic compounds, with demonstrated control of root-knot nematodes (Meloidogyne spp.) in tomato at efficacy comparable to commercial chemical nematicides.
Reported to induce systemic resistance in plants via phenazine metabolites and volatile organic compounds.
Reported to solubilize phosphate.
Reported as a plant growth-promoting rhizobacterium; produces indole-3-acetic acid (IAA) and improves plant growth in greenhouse trials; also reported to increase plant biomass in Arabidopsis thaliana plants carrying mutations in certain immunity-related genes (fez, wrky70, cbp60g, pft1, rlp30), though not observed in wild-type plants.
Reported to produce siderophores (pyoverdine, achromobactine) that contribute to plant health and suppression of pathogens.
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