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七、白僵菌白僵菌属于白僵菌属(Beauvaria),孢梗密聚成丛,基部膨大,顶端细弱聚伞状小柄,分生孢子顶生于成丛的孢梗上,无色球形,直径1.8～2.5微米。当分生孢子附着在蚕体以后,如有一定的温度和湿度,孢子即发芽,分泌几丁酶、解朊酶、脂酶,溶解蚕体表皮的所有组成分,然后形成菌丝,穿入体内各细胞间。菌丝在体内大量形成,绒毛状成簇,从寄主躯体的节间穿出,逐渐覆盖寄主的全部躯体,后变成白色粉末状,干后逐渐变为乳黄色。
Beauveria bassiana Beauveria belongs to the genus Beauvaria, and the termites are clustered into plexuses. The basal part is swollen and the top is faintly cymothroid. , Diameter 1.8 ~ 2.5 microns. When the conidia attached to the silkworm body, if a certain temperature and humidity, spore germination, secretion of chitinase, proteolytic enzyme, lipase, dissolve all components of silkworm epidermis, and then form mycelium, into the body Between the cells. Mycelium formed in large numbers in the body, clustered villi, from the host of the body out through the internals, and gradually cover all the host body, after becoming white powder, dried gradually become milk yellow.