Actinobacteria with antagonistic potential in vitro to phytopathogenic fungi and promotion of growth in chili plants

Authors

  • Bertha María Sánchez-García , Instituto Tecnológico de Roque. Carretera Celaya-Juventino Rosas km 8, Celaya, Guanajuato. AP. 508. CP. 39110
  • Juan Gabriel Ramírez-Pimentel , Instituto Tecnológico de Roque. Carretera Celaya-Juventino Rosas km 8, Celaya, Guanajuato. AP. 508. CP. 39110
  • Luis Patricio Guevara-Acevedo , Instituto Tecnológico de Roque. Carretera Celaya-Juventino Rosas km 8, Celaya, Guanajuato. AP. 508. CP. 39110
  • Juan Carlos Raya-Pérez , Instituto Tecnológico de Roque. Carretera Celaya-Juventino Rosas km 8, Celaya, Guanajuato. AP. 508. CP. 39110
  • Jorge Covarrubias-Prieto , Instituto Tecnológico de Roque. Carretera Celaya-Juventino Rosas km 8, Celaya, Guanajuato. AP. 508. CP. 39110.
  • María Alejandra Mora-Avilés , Campo Experimental Bajío-INIFAP. Carretera Celaya-San Miguel de Allende km 6.5, Celaya, Guanajuato, México. CP. 38110

DOI:

https://doi.org/10.29312/remexca.v0i23.2033

Keywords:

Rhizobacteria, fungal inhibition, growth promotion

Abstract

The inhibitory potential of three strains of actinobacteria (B21, B22 and B37) against phytopathogens: Rhizoctonia solani, Phytophthora capsici and Fusarium oxysporum was evaluated in vitro using the technique of aperados culture, where at 72 h after confrontation the percentage of radial growth inhibition (PICR) by actinobacteria was evaluated. The results showed a variable PICR between 67.54 and 93.84% depending on the pathogen. Strain B22 was the one that showed an average PICR of 98.73% for the three phytopathogens. In the in vivo scrutiny, the chili plants inoculated with the actinobacteria showed higher plant height and greater dry weight of the fruits with respect to the control, which suggests that actinobacteria promote the growth of chili plants.

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Published

2019-09-17

Issue

No. 23 (2019): Especial

Section

Investigation notes

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How to Cite

Sánchez-García, Bertha María, Juan Gabriel Ramírez-Pimentel, Luis Patricio Guevara-Acevedo, Juan Carlos Raya-Pérez, Jorge Covarrubias-Prieto, and María Alejandra Mora-Avilés. 2019. “Actinobacteria With Antagonistic Potential in Vitro to Phytopathogenic Fungi and Promotion of Growth in Chili Plants”. Revista Mexicana De Ciencias Agrícolas, no. 23 (September): 339-44. https://doi.org/10.29312/remexca.v0i23.2033.

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