Journal of General Plant Pathology

, Volume 79, Issue 2, pp 105–109 | Cite as

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

  • José Alfredo Samaniego-GaxiolaEmail author
  • Nagamani Balagurusamy
Fungal Diseases


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, 0 % survived. This fungus was thus susceptible to VFAs.


Biological soil disinfestation Phymatotrichopsis Root rot Volatile fatty acids 



We thank Dr. Momma for his suggestions and corrections of this paper.


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Copyright information

© The Phytopathological Society of Japan and Springer Japan 2013

Authors and Affiliations

  • José Alfredo Samaniego-Gaxiola
    • 1
    Email author
  • Nagamani Balagurusamy
    • 2
  1. 1.Campo Experimental La Laguna (INIFAP)MatamorosMexico
  2. 2.Escuela de Ciencias BiológicasUniversidad Autónoma de Coahuila ULTorreónMexico

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