Revista: | Tropical and subtropical agroecosystems |
Base de datos: | PERIÓDICA |
Número de sistema: | 000372748 |
ISSN: | 1870-0462 |
Autores: | Otadoh, Jane A1 Okoth, Sheila A2 Ochanda, James2 Kahindi, James P3 |
Instituciones: | 1University of Nairobi, School of Biological Sciences, Nairobi. Kenia 2University of Nairobi, Center of Biotechnology and Bioinformatics, Nairobi. Kenia 3United States International University, Nairobi. Kenia |
Año: | 2011 |
Volumen: | 13 |
Número: | 1 |
País: | México |
Idioma: | Inglés |
Tipo de documento: | Artículo |
Enfoque: | Experimental, analítico |
Resumen en inglés | Trichoderma has been widely studied for their biocontrol ability, but their use as biocontrol agents in agriculture is limited due to the unpredictable efficiency which is affected by biotic and abiotic factors in soil. Isolates of Trichoderma from Embu soils were evaluated for their ability to control Fusarium oxysporum f. sp. phaseoli., in vitro and promote seedling growth in the greenhouse. Bioassays were run using dual cultures and diffusible compound production analysis. The Trichoderma isolates significantly (p ≤ 0.01) reduced the mycelial growth of the pathogen. The principle mechanisms of niche competition, mycoparasitism, and antibiosis were observed in growth of the pathogen mycelium in the presence of Trichoderma spp., through development of inhibition zones. There was coiling of hyphae around the pathogen mycelium coupled by lysising of cell wall Trichoderma spp., where T. reesei and T. koningii were the most effective isolates. Studies were indicative of the synergistic ability of Trichoderma spp., being an effective biocontrol of bean seedlings against Fusarium wilt while also promoting plant growth |
Disciplinas: | Agrociencias, Biología |
Palabras clave: | Fitopatología, Leguminosas, Hongos, Trichoderma, Fusarium oxysporum, Biofungicidas, Frijol |
Keyword: | Agricultural sciences, Biology, Legumes, Phytopathology, Fungi, Trichoderma, Fusarium oxysporum, Biofungicides, Bean |
Texto completo: | Texto completo (Ver HTML) |