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Studies on lipid metabolism of the rice planthoppers migrating to the Japanese Islands

迁徙到日本列岛的稻飞虱脂质代谢研究

基本信息

批准号：
62560037
负责人：
IKESHOJI Toshiaki
金额：
$ 1.34万
依托单位：
University of Tokyo
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1987
资助国家：
日本
起止时间：
1987 至 1988
项目状态：
已结题

项目摘要

The objectives of this research is to determine the newly immigrated rice planthoppers,their ratios in samples and the originated locales in the South East Asia.(1) WBPH,Sogatella furcifera lost dry body weights,lipids,Ca and Mg contents on distance flight,but recovered within 4 days in triglyceride and 1 day in metal contents by feeding rice plants on arrival to the Japanese Islands in June and July 1986 and 1987. Comparison of these variables between those caught on the East China Sea and landed on the Islands by calculating their discriminant functions enabled us to discriminate newly immigrated ones.They were counted as 4.2 to 4.5 out of 12 analyzed in each sample from Nagasaki and elsewhere, and found always in association with the synoptical frontal systems developed over the Islands.Significant differences of the variables among the ECS populations suggested variable emigrating locales.(2) The preliminary isozymic analysis of 9 enzymes of 6 BPH strains, Nilaparvata lugens collected from the SEA by a flat polyacrylamide ion-focusing electrophoresis revealed the differences of malic enzymes and esterases between the Indonesian and Malyasian strains, and the Philippines and Taiwan strains. More extensive studies may show the geographical differences of BPH isozymes.

本研究的目的是确定新迁入的稻飞虱，它们在样本中的比例和起源地在东南亚。(1)白背飞虱（Sogatellafurcifera）在长途飞行中损失了干体重、脂质、钙和镁含量，但在1986年和1987年6月和7月到达日本列岛后，通过饲喂水稻植株，在4天内甘油三酯和1天内金属含量恢复。通过计算这些变量的判别函数，将在东海捕获的鱼与在岛上登陆的鱼进行比较，使我们能够区分新移民。在来自长崎和其他地方的每个样本中分析的12个样本中，它们被计数为4.2到4.5。各要素间的差异显著，各要素间的差异显著，各要素间的差异显著人口建议变量移民地点。(2)采用聚丙烯酰胺离子聚焦平板电泳对采自东南亚的褐飞虱（Nilaparvatalugens）6个品系的9种同工酶进行了初步分析，结果表明，印度尼西亚品系和马来品系与菲律宾品系和台湾品系的苹果酸酶和酯酶存在差异。更广泛的研究可能会显示BPH同工酶的地理差异。