白僵菌Beauveria bassiana的几丁质酶

CHITINASE OF THE FUNGUS BEAUVERIA BASSIANA

把几丁质酶添加到苏云金杆菌(Bacillus thurigiensis Berlinen)制剂中,防治云杉卷叶蛾具有明显的增效作用,可提高杀虫率20％。 1974年,在加拿大魁北克省东部,梯密司考泰地区100公顷的香脂冷杉试验区,单独用苏云金杆菌制剂HPC进行飞机喷洒防治云杉卷叶蛾(Choristoneura fumi ferana Clemens),其幼虫死亡率为85％和54％。未受损的嫩芽保存率仅为4％和1％。而添加几丁质酶后,卷叶蛾幼虫死亡率提高到93％,嫩芽保存率为39％。

We classify chitinase of our No. 02, 017 strain of Beauveria bassiana as a constitutive enzyme and as a induced enzyme respectively. We believe that whether chitinase belongs to one group or the other depends on the specificity of the strain of the fungus Beauveria bassiana.