Isolation and Screening of Dominant Antagonistic Yeasts of Banana Anthracnose
Yeast strains were separated and purified from 8 banana species through pour plate and streak plate methods,and dominant antagonistic yeasts were obtained by culturing them with the banana anthrax pathogen through confront culture method and in-vitro test.The result showed that there were 329 yeast strains purified from the banana fruits.The 3 yeast strains which had obvious antagonism to the banana anthrax pathogen were screened out.Finally,The yeast strain Z-BR-16 wich had the best and the most stable antagonistic effect was screened out.Compared with sterile water,the inhibition rate of the yeast strain Z-BR-16 in 1.0×108 CFU/ml to the banana anthracnose was up to 75.94% after 7 days after vaccination.