| Budget Amount *help |
¥16,510,000 (Direct Cost: ¥12,700,000、Indirect Cost: ¥3,810,000)
Fiscal Year 2019: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2018: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2017: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2016: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
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| Outline of Final Research Achievements |
Phytoplasma is a phytopathogenic bacterium that spreads infection by host-switching horizontally translocating between plant and insect hosts. In this study, we analyzed the host switching mechanism of phytoplasma. First, we analyzed transcriptional regulation of sigma factor RpoD involved in host switching, identified the promoter sequence, and clarified that it is involved in transcriptional regulation of various genes. Next, to analyze host-host interaction in trees, we identified phytoplasma that causes yellowing diseases of Elaeocarpus zollingeri. Furthermore, we analyzed the crystal structure of the secreted protein PHYL1 that functions during plant infection and identified the amino acid sequences important for its function.
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