Publication: Evaluación del biocontrol de Phytophthora capsici en pimiento (Capsicum annuum L.) por tratamiento con Burkholderia cepacia
Authors
Ezziyyani, Mohammed ; Pérez Sánchez, María Consuelo ; Requena, María Emilia ; Sid Ahmed, Ahmed ; Candela Castillo, María Emilia
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Facultad de Biología
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Publisher
Murcia: Universidad de Murcia, Servicio de Publicaciones
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DOI
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info:eu-repo/semantics/article
Description
Abstract
Se ha estudiado la capacidad antagónica de la bacteria Burkholderia Cepacia, para controlar la enfermedad que el Oomiceto patógeno Phytophotora Capsici causa en plantas de pimiento. Las evaluaciones antagónicas de B. cepacia se han realizado in vitro mediante confrontaciones de la bacteria y P. capsici. Se ha analizado su incidencia sobre semillas, hojas y raíces midiendo la reducción de las «manchas foliares » y la «pudrición de la raíz» causada por el patógeno y su repercusión en la germinación y el crecimiento de las plántulas. Se ha asegurado la inocuidad de la bacteria al dicionarse a semillas y plántulas de pimiento in vivo. La adición del preparado de la bacteria a plantas inoculadas con el patógeno, redujo la podredumbre causada por P. capsici en un 37% en condiciones de campo y en un 55,6% en pimientos cultivados en condiciones controladas en macetas crecidas en invernaderos. Los resultados favorables obtenidos nos permiten considerar a la bacteria B. cepacia, uno de los microorganismos utilizables en el biocontrol de hongos telúricos, patógenos del pimiento.
The antagonistic capacity of the bacterium Burkholderia cepacia for controlling diseases caused by the Oomicete pathogen Phytophthora capsici in pepper plants was studied. Its effect on seed, leaves and roots was evaluated by measuring the reduction in leaf spot and root rot caused by the pathogen and its influence on plantlet germination and growth. The antagonistic capacity of B. cepacia was assessed in vitro by confronting the bacterium and P. capsici, while its innocuous ness was confirmed by adding to seeds and plantlets in in vivo trials. When the bacteria preparation was added to plants inoculated with the pathogen, it reduced root rot by 37% in field conditions and by 55,6% in the controlled conditions of greenhouse. The results obtained suggest that B. cepacia may be considered for use as an antagonist for the biocontrol of the soil fungi which attack peppers.
The antagonistic capacity of the bacterium Burkholderia cepacia for controlling diseases caused by the Oomicete pathogen Phytophthora capsici in pepper plants was studied. Its effect on seed, leaves and roots was evaluated by measuring the reduction in leaf spot and root rot caused by the pathogen and its influence on plantlet germination and growth. The antagonistic capacity of B. cepacia was assessed in vitro by confronting the bacterium and P. capsici, while its innocuous ness was confirmed by adding to seeds and plantlets in in vivo trials. When the bacteria preparation was added to plants inoculated with the pathogen, it reduced root rot by 37% in field conditions and by 55,6% in the controlled conditions of greenhouse. The results obtained suggest that B. cepacia may be considered for use as an antagonist for the biocontrol of the soil fungi which attack peppers.
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Citation
Ezziyyani, M., Pérez Sánchez, C., Requena, M. E., Sid Ahmed, A., & Candela Castillo, M. E. (2004). EVALUACIÓN DEL BIOCONTROL DE PHYTOPHTHORA CAPSICI EN PIMIENTO (CAPSICUM ANNUUM L.) POR TRATAMIENTO CON BURKHOLDERIA CEPACIA. Anales De Biología, (26), 47–59.
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