Survival of soil-borne fungus Phymatotrichopsis omnivora after exposure to volatile fatty acids

  title={Survival of soil-borne fungus Phymatotrichopsis omnivora after exposure to volatile fatty acids},
  author={J. A. Samaniego-Gaxiola and N. Balagurusamy},
  journal={Journal of General Plant Pathology},
Control of plant-pathogenic Phymatotrichopsis omnivora is difficult. In tests of volatile fatty acids (VFAs), mycelia in empty 9-cm Petri dishes with 3 or 6 μL of acetic, butyric, formic or propionic acid did not grow, but 37–67 % grew on potato dextrose agar with 6 μL VFA. Survival of sclerotia was <20 % on water agar with 154 μg/mL of a VFA or 12–40 % in sandy soil with 616 μg/mL. Survivability after 2-h immersion in 17 mmol/L varied greatly (0–100 %) depending on the VFA, but in 33–50 mmol/L… Expand
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