Physiological and morphological properties of interneurones in the deutocerebrum of male cockroaches which respond to female pheromone

摘要: Interneurones in the deutocerebrum of male cockroaches were characterised according to their intracellularly recorded responses odours females and selected food odours. Following physiological characterization interneurones stained by intracellular injection dye. Some characterized extracellular recording staining. The electrodes either placed somata or more usually neurites between deutocerebral glomeruli. Such recordings reveal a continuous background synaptic potentials, spikes at variable but low frequency depending upon individual interneurone. odours, which blown over one antenna, whole female extract two purified components this; Fraction A second identical Periplanone B. Sixteen other also tested. revealed fell into four main groups responded to: components, preferentially, neither components. Other inhibited excited some with these characteristics stained, principal cell bodies lateral cluster deutocerebrum, branches within confined macroglomerulus (an enlarged glomerulus found only adult males), an axon projecting calyces lobus lateralis protocerebralis protocerebrum. responding preferentially B had throughout macroglomerulus, those restricted pattern branching macroglomerulus.