【摘要】 正常玉米螟血淋巴内游离氮基酸总量为２２．３２ｍｇ／ｍｌ。当幼虫短时间（四龄未至五龄第二天）和长时间（三龄初至五龄第二天）取食慈菇蛋白酶抑制剂（ＡＨＩ）后，游离氮基酸总量分别为对照的７３．９％和３３．３％，大多数氮基酸含量明显低于对照；血液蛋白质浓度下降２０－5２％；幼虫体内γ—谷氨酰转肽酶（γ—ＧＴＰ）活力也明显下降，但体外不被ＡＨＩ抑制。这些结果表明：ＡＨＩ能有效地抑制幼虫蛋白水解酶，并间接地影响其他酶和蛋白质的生物合成，最终导致幼虫生长不良。更多还原

【Abstract】 The total amount of amino acid in the haemolymph of normal larvae of A sian cornborer,Ostrinia furnacalis was 22.32 mg/ml.When the larvae acutely and chronically were in- gested with artificial diets containing AHI,the amount of free amino acids in haemolymph was73.9%and 33.3%of that of control respectively,and the content of overwhelming majority ofall aniino acids to two treatments was lower than that in control,especially in chronic treatment.AHI decreased in vivo the level of γ-glutamyl transpeptidase(γ-GTP),but the in vitro effectof AHl on γ-GTP activities in the larval preparations was not significantly different compared tothat of control.These results indicate that AHI effectiyely affects the larval synthesising otherproteins and enzymes,resulting in insects abnormal growth.更多还原