Transmission and operation mechanisms of nutrients, caste reguatory substances and symbionts in incipient colony of pedestlian social insects

主要开展了以下研究工作：(1)以冲绳县伊洛莫特岛为研究对象。5月中旬采集竹叶白蚁，供八岛、鹿儿岛之用。在5月下旬采集日本玉米象。我们还去了兵库县的川西。调查了种级调节物质(信息素)和士兵基因在白蚁体内的传递情况。通过差异显示的方法确定士兵特异基因的表达。(3)研究了日本血吸虫幼虫的生长发育和个体间的营养差异。从营养生态学的角度分析了食用菌白蚁(Odontotermes Formosanus)与白蚁(Hsidivu)的共生系统。(6)研究了取食木质蟑螂(Salganea spp.)营养物质从成虫向若虫的回流传递。(7)研究了大头潜蝇幼虫群体的种级分化。(8)发表了上述研究的10篇论文。

The following researches were carried out.(1) We traveled for lriomote island, Okinawa pref. in middle May to collect Nasutitermes takasagoensis, for Yakushima island , Kagoshima pref. in late May to collect Hodotermopsis japonica. And also we traveled for Kawanishi, Hyogo pref. to collect Zootermopsis nevadensis.(2) Transmission of caste regulatory substances (pheromone) and gene expression of soldier in termites : were investigated. The expression of soldier specific gene is determined by Differential display method.(3) Trophallaxis btween individuals and growth of larvae in H.japonica were investigated. Analysis of gut content, accumulation of uric acid in fat body, and frequency of trophallaxis from adults to larvae were carried out.(4) Pattern of caste diffrentiatin in incipient colony of Nasutitermes takasagoensis was investigated.(5) The symboitic system in the fungus growing termite (Odontotermes formosanus)and hasidivu Was investigated on the aspect of nutritional ecology.(6) Transmission of nutritional substances by regurgitation from adults to nymphs in the wood feeding cockroaches (Salganea spp.)was investigated.(7) Caste differentiation in incipient colony of Pheidde megacephaus was investigated.(8) We published 10 papers on above studies.