【摘要】 将桑粒肩天牛唾腺匀浆、肠道分段冰冻切片后抽提 ,测定各部分内切 β 1 ,4 葡聚糖酶 (Cx) ,纤维二糖水解酶 (CHB) ,β 1 ,4 葡萄糖苷酶在肠道及唾腺中的酶活与分布。结果发现 97 1 3 %的CX 酶 ,95 7%的 β 1 ,4 葡萄糖苷酶的 97 0 3 %的CHB酶存在于桑粒肩天牛中肠 ,唾腺中没有检测到酶活性 ,结合天牛消化道形态和组织学特征 ,证明桑粒肩天牛纤维素酶的主要来源是内源性的更多还原

【Abstract】 The distribution of the cellulolytic enzymes namely Endo\|β\|1,4\|glucanase (C X),cellobiohydrolase (CBH) and β\|1,4\|glucosidase activities in gut and salivery glands of Apriona germari (Hope) was measured.97.13% C X,95.7% β\|1,4\|glucosidase and 97.03% CBH activities were found in the midgut and not detected in salivary glands.This showed that the major origin of cellulases were endogeneous.更多还原