摘要
用多种化合物的气味制激美洲大蠊(Periplaneza americana)触角,诱导、记录触角电位(EAG)反应。试验了各类化合物154种,其中53％能诱发出明显的EAG反应。绝大多数EAG反应是负相慢波,波幅多数为0.5—2mV,时程1.5—3秒。苯等少数化合物能诱发正相EAG反应。剂量-反应曲线大致呈“S”形,还可见适应现象。萜类化合物和挥发性植物油类诱发EAG反应的作用最强,其次是酮、醇、酯、胺类化合物。化合物的含氧功能基团和空间构型与EAG反应的诱发有一定的关系。可能是同一种化合物对不同种的感受器都可能诱发EAG反应。一般性化合物诱发雌、雄、成、幼虫EAG反应的差异不大,但雌虫类提取物仅对雄性成虫触角诱发较强的EAG反应。一些已知的驱、诱、杀虫剂也能诱发EAG反应,但仅表现为对一般化合物的反应特征。
The clectroantennogram (RAG) responses of American cockroach Periplaneta americana to various volatile chemicals were investigated Of the 154 chemicals tested, about 53% elicited conspicuous EAG responses, mostly as negative deflections about 0.5-2.0 mv in amplitude with a time course of 1.5-3.0 seconds. However, benzene and methylbenzene could elicit positive deflection EAG. The dosage-response curve roughly took a S shape. Adaptation could be caused by continuous stimulation on the antenna with the odour. Terpenoids and volatile plant oils elicited the greatest mean EAG responses, followed by ketones, alcohols, esters and amines. It seems that the spatial configuration and oxygen-containing functional groups of the chemical molecules were involved in the induction of E AG responses. However, it was demonstrated that one chemical odour could act on the different olfactory receptors and elicit their EAG responses. No obvious difference of the EAG responses to the general chemical odours was observed in the adult male, female and larval antennae. Only the adult male antennae, however, were highly responsive to the female fecal extract. Some conventional repellents, attractants and insecticides could also elicit EAG responses, with the repellents being more effective.
出处
《昆虫学报》
CAS
CSCD
北大核心
1992年第1期8-14,共7页
Acta Entomologica Sinica
基金
国家自然科学基金
关键词
美洲大蠊
触角电位
化合物气味
Periplaneta americana-electroantennogram-chemical odour
