African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6578

Full Length Research Paper

In vitro antifungal activity of “Gobernadora” (Larrea tridentata (D.C.) Coville) against Phytophthora capsici Leo.

  Virgilio Mojica-Marín1*, Hugo A. Luna-Olvera2, Carlos Fco. Sandoval-Coronado2, Lilia H. Morales-Ramos2, Nancy A. González-Aguilar2, Benito Pereyra-Alférez2, Estela Ruiz-Baca1 and Myriam Elías-Santos2        
  1Facultad de Ciencias Químicas. Universidad Juárez del Estado de Durango (UJED), Av. Veterinaria s/n, Circuito Universitario, Col. Valle Del Sur. CP. 34120. Durango, Dgo. México. 2Instituto de Biotecnología, Facultad de Ciencias Biológicas (UANL). Apdo. Postal 38F, Pedro de Alba, s/n, Cd. Universitaria, San Nicolás de los Garza, N.L. México, CP. 66450.
Email: [email protected], [email protected]

  •  Accepted: 12 January 2011
  •  Published: 31 March 2011

Abstract

 

In recent years, there has been an increased interest in using herbal extracts and their phytocomponents as an alternative to control plant pathogenic microorganisms, and promote alternative uses of plants from desertic environments. In the present study, the biofungicide activity from extracts of leaves of Larrea tridentata collected from different locations of the Chihuahuan Desert, was evaluated against Phytophthora capsici. The four methods of preparation of the extracts of Ltridentata exert an inhibiting action on Pcapsici. A greater activity (P≤0.05) was observed in the alcoholic extract in comparison with the powder, followed by decoction and the crude one. The methods used in this study to obtain data in a period of 48 to 72 h for the in vitro selection of the extracts with fungicide effect were considered to be very short when compared with field studies. The results showed an existing potential as an alternative for the control of P. capsici by using different extracts from L. tridentata., which turns out to be a great convenience due to the abundant availability of L. tridentata in Mexican desertic environments. Also, its low cost of handling and the simple techniques of preparation and application promoted therefore a diversification in the use of the biotic resources of desertic ecosystems.

 

Key words: Vegetal extracts, creosote bush, biological control, capsicum, Chihuahuan desert.