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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

Abstract

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.

Keywords

Biological soil disinfestation Phymatotrichopsis Root rot Volatile fatty acids 

Notes

Acknowledgments

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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