Actividad antifúngica de Bacillus amyloliquefaciens contra Fusarium oxysporum f. sp. cubense raza 1



Título del documento: Actividad antifúngica de Bacillus amyloliquefaciens contra Fusarium oxysporum f. sp. cubense raza 1
Revista: Agronomía Mesoamericana
Base de datos: PERIÓDICA
Número de sistema: 000453048
ISSN: 1659-1321
Autores: 1
1
1
1
1
1
Instituciones: 1Universidad Central "Marta Abreu" de Las Villas, Instituto de Biotecnología de las Plantas, Santa Clara, Villa Clara. Cuba
Año:
Periodo: May-Ago
Volumen: 32
Número: 2
Paginación: 466-478
País: Costa Rica
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, analítico
Resumen en español Debido a la ausencia de agentes químicos totalmente efectivos o económicamente viables para el control del marchitamiento por Fusarium, el uso de microorganismos antagonistas es de gran interés ya que podrí
Resumen en inglés Due to the absence of totally effective either economically viable chemical agents for the control of Fusarium wilt, the use of antagonistic microorganisms is of great interest since it could represent a more economically and ecologically sustainable alternative. Objective. To analyze the antifungal effect of the Bacillus amyloliquefaciens CCIBP-A5 strain against Fusarium oxysporum. Materials and methods. The work was carried out in the Laboratory of Applied Microbiology of the Instituto de Biotecnología de las Plantas, Cuba, between September 2017 and June, 2018. The in vitro and in vivo antifungal activity of its culture filtrate and cell against F. oxysporum has been assayed. Results. The results indicated that the metabolites present in the culture filtrate of B. amyloliquefaciens CCIBP-A5 significantly influenced the growth and morphology of the mycelium and the conidia. They also caused oxidative damage to the lipid molecules of F. oxysporum. In addition, this strain showed inhibitory effects on the development of the disease under controlled conditions. These aspects are key when selecting a bacterial candidate as a biological control agent. Conclusions. The results showed that the B. amyloliquefaciens CCIBP-A5 strain, isolated from Musa sp., had an in vitro antifungal effect against the vegetative and reproductive structures of Foc race 1 as well as on the Musa spp.-F. oxysporum interaction. This strain is suggested for the development of a bioproduct for Fusarium wilt managemen
Disciplinas: Agrociencias,
Biología
Palabras clave: Bacterias,
Hongos,
Fitopatología,
Bacillus amyloliquefaciens,
Fusarium oxysporum,
Actividad antifúngica,
Control biológico
Keyword: Bacteria,
Fungi,
Phytopathology,
Bacillus amyloliquefaciens,
Fusarium oxysporum,
Antifungal activity,
Biological control
Texto completo: https://www.scielo.sa.cr/pdf/am/v32n2/2215-3608-am-32-02-00466.pdf