| Budget Amount *help |
¥20,020,000 (Direct Cost: ¥15,400,000、Indirect Cost: ¥4,620,000)
Fiscal Year 2010: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2009: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2008: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2007: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
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| Research Abstract |
Various aspects of intracellular symbionts, Wolbachia and Cardinium, were studied, with special reference to distribution among arthropods, cultivation in insect cell lines, gene expression profile of host cells, and classification of Cardinium. Cytoplasmic incompatibility was caused independently by Wolbachia and Cardinium in white-backed planthopper, Sogatella furcifera. The bacteria of the planthopper were successfully cultivated in insect cell lines. Immune response of host cells against bacteria was examined using microarrays. Caridinium induced immune response in the host cells whereas Wolbachia did not. Infection of Cardinium was surveyed in planthoppers, spider mites, and biting midges, which resulted in reclassification of the order Cardinium.
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