Mi SciELO
Servicios Personalizados
Revista
Articulo
Indicadores
- Citado por SciELO
Links relacionados
- Similares en SciELO
Compartir
Fitosanidad
versión impresa ISSN 1562-3009versión On-line ISSN 1818-1686
Resumen
RIVERO GONZALEZ, Deyanira et al. Antifugal Activity in vitroof Chitosan Sigma on Patogen Fungi that Cause Spotted Grain in Rice (Oryza sativa L.). Fitosanidad [online]. 2009, vol.13, n.2, pp.101-108. ISSN 1562-3009.
The antifungal activity of commercial chitosan Sigma at concentrations of 300, 500, 700 and 1000 mg/L on mycelial growth and sporulation of the rice spotted grain pathogen fungi Alternaria padwickii (Ganguly) Ellis, Bipolaris oryzae (Breda de Haan) Shoemaker, Curvularia lunata (Wakker) Boedijn, Fusarium verticillioides (Saccardo) Nirenberg, Phoma sp. Saccardo and Sarocladium oryzae (Sawada) Gams & Hawksworth was determined in vitro through the poisoning Potato-Dextrose-Agar media. Chitosan showed specificity in its inhibitory activity on fungi mycelial growth, and it was highest at concentration of 1000 mg/L, except for Phoma sp. Fungicidal action of the polymer on A. padwickii and B. oryzae was observed also and fungistatic action on the rest of fungi, with delayed growth on F. verticillioides. Fungal sporulation reduction while the concentration product increased was obtained. That is why chitosan Sigma is considered a promising alternative for the disease management
Palabras clave : chitosan; pathogen fungi; spotted grain; rice.