Laboratory of Animal Ecology, Course of Ecology and Systematics, Graduate School of Agriculture, Hokkaido University, Sapporo, Japan.
Exp Appl Acarol. 2010 Sep;52(1):11-7. doi: 10.1007/s10493-010-9342-3. Epub 2010 Feb 27.
I determined the difference in sensitivity of immature and adult mites to host plants with regard to diapause induction. I used immature and adult polyphagous spider mites, Tetranychus kanzawai Kishida (Acari: Tetranychidae), and two host plants, Orixa japonica Thunb. (Rutaceae) and Phaseolus vulgaris L. (Fabaceae). The diapause incidence was investigated in two adult mite-host and two immature mite-host combinations of treatments. The incidence of diapause induction was much higher in mites developing on O. japonica than those on P. vulgaris, whichever host plants they fed on in adulthood. The host plants affected adult mites to a much lesser extent than the immature mites, though the mites feeding on O. japonica showed a consistently higher diapause incidence. These results suggest that host plants affect diapause induction to a greater extent in immature mites than in adult mites.
我确定了未成熟和成熟螨虫对滞育诱导的宿主植物的敏感性差异。我使用了多足蜘蛛螨虫，Tetranychus kanzawai Kishida（蜱螨目：Tetranychidae），和两种宿主植物，山茶花（芸香科）和菜豆（豆科）。在两种成年螨-宿主和两种幼螨-宿主的处理组合中，调查了滞育的发生率。在成年期无论取食哪种宿主植物，在山茶花上发育的螨虫滞育诱导的发生率均明显高于在菜豆上发育的螨虫。宿主植物对成年螨虫的影响远小于对幼螨的影响，尽管取食山茶花的螨虫表现出更高的滞育发生率。这些结果表明，宿主植物对未成熟螨虫的滞育诱导的影响大于对成年螨虫的影响。
