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Survey of plant-mite fauna in southeast area of the Continent of Asia.

亚洲大陆东南部地区植物螨动物区系调查。

基本信息

批准号：
13575021
负责人：
SAITO Yutaka
金额：
$ 7.49万
依托单位：
HOKKAIDO UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2001
资助国家：
日本
起止时间：
2001 至 2003
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-13575021/
关键词：
Tetranychidae Phytoseiidae rDNA Molecular Phylogeny Taxonomy Species diversity China Thailand 系統分類タイ国

项目摘要

In this project we have attempted to rearrange the taxonomy of mite species inhabiting Graminidae in southeast Asia in relation to Japanese fauna. Several surveys conducted in China and Thailand revealaled that there is a typical spider mite group which mainly occurs on Graminidae, i.e.celarius species group. After detailed inspection of many specimens and phylogenetic analyses by rDNA sequences, we have reached an important conclusion that this species group apparently form an independent genus. Then we proposed that the genus Stigmaeopsis Banks should be reinstated. Furthermore, 2 new species of Stigmaeopsis sahrai n.sp.and S.takahashi n sp are described Five species previously known as "celarius" species group in Schizotetranychus are then moved to Stigmaeopsis. Descriptions are supported by illustrations and scanning electron micrographs (Saito et al.2004).On the otehr hand, we studied on the migratory behavior of two tetranychid pest species, Aponychus corpuzae and Schizotetranychus nanjingensis, and one phytoseiid, Typhlodromus bambusae in several monocultural bamboo forests in Fujian Province, China. The results show that while the sticky barrier is particularly effective at disrupting the ambulatory immigration from the ground to new leaves of S.nanjingensis to 1-year-old shoots and of A.corpuzae to 3-year-old shoots, it has no significant effect on the immigration of the phytoseiid mite.We also found out another group which is very closely related with Stigmoeopsis in Thailand. Although this group is now belonging to the genus Schizotetranychus, we are now studying to determine appropriate taxonomy of this group.The otehr mite species such as Mesostigmata are now under observation in order to determine the relationship between Japan and southeast reagion of the Continent of Asia. These studies will be completed for a while and published in near future.

在这个项目中，我们试图重新安排与日本区系有关的东南亚禾本科蠕形动物种类的分类。在中国和泰国进行的几次调查表明，有一个典型的蜘蛛种群，主要发生在禾本科上，即竹叶蝉种群。经过对大量标本的详细观察和rDNA序列的系统发育分析，我们得出了一个重要的结论，该种群显然形成了一个独立的属。然后，我们建议恢复针茅属植物。此外，还记述了Stigmaeopsis Sahrai n.sp.和S.takahashi n sp.的2个新种，其中5个种以前被称为裂叶叉尾轮虫的“elarius”种群，并被转移到Stigmaeopsis。另一方面，我们研究了福建几种单一栽培竹林中两种四肢类害虫--无足类和南京裂尾类，以及一种竹类植物--竹节叉尾类--的迁徙行为。结果表明，虽然粘性屏障对南京金针茅从地上到新叶、从一年生新梢到三年生新梢的流动迁移具有特别有效的干扰作用，但对植粉螨的迁移没有显著影响。我们还发现了另一类与泰国针茅种群关系非常密切的种群。虽然这一群现在属于裂殖线虫属，但我们正在研究确定这一群的合适分类。为了确定日本与亚洲大陆东南部地区的关系，正在观察中的其他螨种。这些研究将在一段时间内完成并在不久的将来发表。