Antagonistic actinomycetes against phytopathogenic fungi of agricultural importance

Authors

  • Miriam Desireé Dávila Medina Universidad Autónoma Agraria Antonio Narro-Departamento de Parasitología. Buenavista, Saltillo, Coahuila. Bosques de Echegaray Núm. 2139, Fracc. El Olmo, Saltillo Coahuila, C. P. 25280
  • Gabriel Gallegos Morales Universidad Autónoma Agraria Antonio Narro-Departamento de Parasitología. Buenavista, Saltillo, Coahuila. Bosques de Echegaray Núm. 2139, Fracc. El Olmo, Saltillo Coahuila, C. P. 25280
  • Francisco Daniel Hernández Castillo Universidad Autónoma Agraria Antonio Narro-Departamento de Parasitología. Buenavista, Saltillo, Coahuila. Bosques de Echegaray Núm. 2139, Fracc. El Olmo, Saltillo Coahuila, C. P. 25280
  • Yisa María Ochoa Fuente Universidad Autónoma Agraria Antonio Narro-Departamento de Parasitología. Buenavista, Saltillo, Coahuila. Bosques de Echegaray Núm. 2139, Fracc. El Olmo, Saltillo Coahuila, C. P. 25280
  • Alberto Flores Olivas Universidad Autónoma Agraria Antonio Narro-Departamento de Parasitología. Buenavista, Saltillo, Coahuila. Bosques de Echegaray Núm. 2139, Fracc. El Olmo, Saltillo Coahuila, C. P. 25280

DOI:

https://doi.org/10.29312/remexca.v4i8.1132

Keywords:

antibiosis, antagonism, confrontation, biological control

Abstract

The work was carried out during 2008 in Saltillo, Coahuila with the aim of isolating actinomycetes in different culture media and assess their in vitro antagonistic effect against plant pathogenic fungi of economic importance. For the isolation of actinomycetes we sampled rhizosphere of plants, soil, ant larvae and adults, the samples were treated with water and seeded phenolized diffusion in artificial culturemedia:PotatoDextroseAgar(PDA),StarchCasein Agar (ACA), Actinomycetes agar (AA) and Czapek Dox Agar (CDA). The isolates obtained were evaluated preliminarily by confrontation and observation. 70 isolates were obtained mainly from actinomycetes in soil; 25 showed antagonistic effects, four of tem APA2, AASH48, AAH53 and APC70 were selected for their inhibitory activity and permanence over time. In vitro bioassays antibiosis against phytopathogenic fungi such as Alternaria sp., Rhizoctonia sp., Fusarium sp. and Colletotrichum sp. on PDA and ACD mediums, the antagonistic effects (%-inhibition) were statistically different (p= 0.05). The best results were obtained with inhibition of Streptomyces spp., APC70 against (57.6%); while Streptomyces spp., AAH53 was for Rhizoctonia, Fusarium and Colletotrichum in 53.08%, 49.36% and 61.57%, respectively. The saprophytic actinomycetes showed antagonistic potential and inhibitory activity against phytopathogenic fungi.

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Vol. 4, Núm. 8

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Published

2018-04-23

How to Cite

Dávila Medina Miriam Desireé, Gabriel Gallegos Morales, Hernández Castillo Francisco Daniel, Ochoa Fuente Yisa María, and Alberto Flores Olivas. 2018. “Antagonistic Actinomycetes Against Phytopathogenic Fungi of Agricultural Importance”. Revista Mexicana De Ciencias Agrícolas 4 (8). México, ME:1187-96. https://doi.org/10.29312/remexca.v4i8.1132.

Issue

Vol. 4 No. 8 (2013)

Section

Articles

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