Antifungal activity of B44 against Trichoderma in mushroom

Taking antagonistic bacterium with significant antagonism against Trichoderma as material，the antifungal activity of heat-treated liquid fermentation of B44 was analyzed. The results showed that the antagonistic bacterium B44 had strong inhibitory effect on mycelium growth，sporulation and spore germination of the three strains of Trichoderma. With the concentration of bacterial fermentation increasing，its inhibition gradually increased. When the concentration of bacterial fermentation was 40%，the inhibition rate to the three strains of Trichoderma were 79.74%，91.19%，and 73.37% respectively，while the inhibition rate to the two mushrooms were 33.80% and 55.46% respectively. It was suggested that strain B44 had the potential biological control in mushroom cultivation