ANTIFUNGAL ACTIVITY OF CHITOSAN AND ONE OF ITS HYDROLYSATES ON Pyricularia grisea, Sacc. FUNGUS

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Aida T. Rodríguez

Abstract

Chitosan and its derivatives considerably reduce mycelial growth of several fungi with a higher inhibitory effect in high concentrations. The in vitro fungal and fungicidal effect of chitosan and chitosan hydrolysate was analyzed on Pyricularia grisea fungus. The experiment was carried out in the Microbiology Laboratory from the Crop Physiology and Biochemistry Department, at the National Institute of Agricultural Sciences (INCA). Results showed that the two products reduce the radial growth of fungus mycelia, with significant differences between the treatments. The best concentrations were 1000 mg.L-1 for chitosan, as well as 500 and 100 mg.L-1 for chitosan hydrolysate, due to the full inhibition observed in all evaluations. The biocide effect of these concentrations was also proved.

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Rodríguez, A. T. (2013). ANTIFUNGAL ACTIVITY OF CHITOSAN AND ONE OF ITS HYDROLYSATES ON Pyricularia grisea, Sacc. FUNGUS. Cultivos Tropicales, 24(2), 85–88. Retrieved from https://ediciones.inca.edu.cu/index.php/ediciones/article/view/583
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