Antagonismo de cepas nativas de Trichoderma sp. aisladas en la Comarca Lagunera contra Phymatotrichum omnivorum (Shear) Duggar
DOI:
https://doi.org/10.59741/agraria.v7i1-2-3.436Keywords:
Bioregulator, antagonistic, Texas root rotAbstract
The Phymatotrichum omnivorum fungus, is a soilborne pathogen that causes one of the most destructive, and hard to control diseases; the rotting of the root of the cotton, or Texas root rot. Biological control is an alternative for the handling of the disease. Trichoderma spp., a fungus that is a natural inhabitant of the ground, is used like antagonistic of several phytopathogen fungi. This work consisted of evaluating the antagonistic action of native isolations of Trichoderma at the Comarca Lagunera, México, against a strain of P. omnivorum, and identifying the species of these isolations. Dual confrontations were performed in laboratory to determine the degree of antagonism of 13 isolations of Trichoderma against the phytopathogen. The 13 isolations, and a witness with four replications, were evaluated out doors, in flowerpots; using sclerotiums of P. omnivorum and bean plants to evaluate the Trichoderma’s antagonistic activity. All the isolations showed an effective antagonistic activity against P. omnivorum. The identified species of Trichoderma were T. harzianum, T. koningii, T. pseudokoningii. Trichoderma showed an effective control of P. omnivorum, that is why it may be concluded that Texas root rot can be used as a rotting bioregulator.
Downloads
References
Agudelo, P., Orduz, S., Hoyos, I. 2001. Aislamientos de Trichoderma y Gliocadium estimulantes de la germinación y el crecimiento de fríjol (Phaseolus vul garis) en: Memorias XXII Congreso de la Sociedad Colombiana de Fitopatología. Medellín.
Alippi, H. y Mónaco C. 1990. Antagonismo de hongos fitopatógenos y saprobios en suelos hortícolas. Rev. Argent. Microbiol. 22: 90-93.
Bell, D., Wells, H. and Markman, C. 1982. In vitro an tagonism of Trichoderma species against six fungal plant pathogens. Phytopathol. 72: 379-382. DOI: https://doi.org/10.1094/Phyto-72-379
Cook, J.R. and Baker, K.F. 1983. The nature and practice of biological control of plant pathogens. APS Press. St. Paul, Minnesota. 539 p.
Hernández, H. V. 2002. Manejo integrado de enfermedades en el cultivo del algodonero. Memorias del IV curso regional de aprobación en el control de plagas del algodonero. Universidad Autónoma Agraria Antonio Narro, Unidad Laguna. Departamento de Parasitología. Comisión Nacional de Sanidad Agropecuaria. Dirección General de Sanidad Vegetal. Sistema Nacional de aprobación Fitosanitaria. Torreón, Coahuila, México.
Hernández H., V. 1987. Effects of cultivar, seed quality, pathogen virulence, inoculum density, and to see depth on host resistance to the seed-seedling disease com plex of cotton. A Dissertation Submitted to the Gradu ate College of Texas A&M University in partial fulfilment of the requirements for the degree of Doctor of Physolophy. December 1987. 179 pp. College Sta tion, Texas, U.S.A.
Herrera, P. T. y Samaniego, G.J.A. 2002. Enfermedades del nogal. pp. 177-206. In: CELALA. 2002. Tecnologia de producción en nogal pecanero. SAGADERPA. INIFAP. CIRNOC. CELALA. Matamoros, Coahuila, México. Noviembre de 2002.
Lyda, S. D. and Kenerley, C.M. 1992. Phymatotrichum In: Methods for research on soilborne phytopathogenic fungi. APS press, St. Paul, Minessota. pp 145-148.
Samaniego-Gaxiola, J.A., Ulloa-Sosa, M. y Herrera-Pérez, T. 1989. Hongos del suelo antagónicos de Phymatotrichum omnivorum. Rev. Mex. de Fitopatol. 8: 86-95.
Streets, R.B. and Bloss, H. E. 1973. Phymatotrichum root rot. Monograph No. 8. The American Phytopathologi cal Society. St. Paul, Minnesota. U.S.A. 38 p.
Villegas, M. A. 2005. Trichoderma Pers caracteristicas generales y su potencial biológico en la agricultura sostenible.Villavicencio, Colombia. http:// www. or iu sb iot ecnologia . com/ t ecnica / 12 8 - trichoderma-pers-caracteristicas-generales-y-su potencial-biologico-en-la-agricultura-sostenible (10 de Octubre de 2007).
Downloads
Published
Issue
Section
License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
How to Cite
PLUMX Metrics
