| Budget Amount *help |
¥17,160,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥3,960,000)
Fiscal Year 2022: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2021: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2020: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2019: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2018: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
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| Outline of Final Research Achievements |
In this study, we aimed to elucidate the molecular mechanisms underlying the interspecific incompatibility mechanism in plants. As a result, we identified a new factor, an acetylation enzyme of the cell wall called TBL, and found that chemical modification of the cell wall may function as a reproductive barrier between different species. We also conducted a functional analysis of the SPRI1 protein, which is involved in interspecific incompatibility, and revealed that intra- or intermolecular disulfide bonds play an important role. Furthermore, we showed that the SPRI1 protein is localized in a complex containing its own homomultimer. These findings are expected to further advance our understanding of the mechanisms of interspecific pollen rejection.
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