Effect of Bacillus pumilus CCIBP-C5 on Musa-Pseudocercospora fijiensis interaction

Tipo de material: Texto

TextoSeries ; 3 Biotech, 8, p.9-10, 2018Trabajos contenidos:

Cruz-Martín, Mileidy
Acosta-Suárez, Mayra
Mena, Eilyn
Roque, Berkis
Pichardo, Tatiana
Alvarado-Capó, Yelenys

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Resumen: The effect of antifungal activity of culture filtrate (CF)of Bacillus pumilus strain CCIBP-C5, an isolate from a phyllosphere of banana (Musa)leaves, was determined on Pseudocercospora fijiensis challenged banana plants. The CF was shown to decrease the fungal biomass and induce changes in banana plant. In this sense, at 70 days post inoculation (dpi), a lower infection index as well as a decrease in fungal biomass after 6 dpi was obtained in treated plants with respect to control ones. At the same time, changes in the activities of several enzymes related to plant defense responses, such as phenylalanine ammonia lyase, chitinases, ß-1,3-glucanases and peroxidases were observed. These results indicate that B. pumilus CCIBP-C5 has a potential role for biological control of P. fijiensis possibly due to the production of antifungal metabolites.

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The effect of antifungal activity of culture filtrate (CF)of Bacillus pumilus strain CCIBP-C5, an isolate from a phyllosphere of banana (Musa)leaves, was determined on Pseudocercospora fijiensis challenged banana plants. The CF was shown to decrease the fungal biomass and induce changes in banana plant. In this sense, at 70 days post inoculation (dpi), a lower infection index as well as a decrease in fungal biomass after 6 dpi was obtained in treated plants with respect to control ones. At the same time, changes in the activities of several enzymes related to plant defense responses, such as phenylalanine ammonia lyase, chitinases, ß-1,3-glucanases and peroxidases were observed. These results indicate that B. pumilus CCIBP-C5 has a potential role for biological control of P. fijiensis possibly due to the production of antifungal metabolites.

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