Antifungal activity of chitosan on mycelial growth and sporulation of the Pyricularia grisea Sacc. fungus
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Abstract
Laboratory belonging to the Scientific and Technological Base
Unit Base Los Palacios. The aims of this research was to
evaluate the antifungal activity of four chitosan formulates Q
(100, 500, 1000 mg.L-1) y chitosan and copper (QCu-100 mg.L-1)
on the mycelial growth and in vitro sporulation rate of
Pyricularia grisea Sacc fungus. Results showed that
1000 mg.L-1 chitosan and QCu-100 mg.L-1 had the greatest
inhibitory effect on four day with 27 y 30 %, respectively.
However fungal sporulation was inhibited in 100 % by el QCu,
while Q 100 y Q 500 had inhibitory percentages between 80 y
96 % on center and peripheral zones respectively. In addition,
Q-l000 mg.L-1 chitosan had not a noticeable effect on fungal
sporulation.
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