| Budget Amount *help |
¥128,440,000 (Direct Cost: ¥98,800,000、Indirect Cost: ¥29,640,000)
Fiscal Year 2020: ¥25,870,000 (Direct Cost: ¥19,900,000、Indirect Cost: ¥5,970,000)
Fiscal Year 2019: ¥27,300,000 (Direct Cost: ¥21,000,000、Indirect Cost: ¥6,300,000)
Fiscal Year 2018: ¥26,910,000 (Direct Cost: ¥20,700,000、Indirect Cost: ¥6,210,000)
Fiscal Year 2017: ¥24,830,000 (Direct Cost: ¥19,100,000、Indirect Cost: ¥5,730,000)
Fiscal Year 2016: ¥23,530,000 (Direct Cost: ¥18,100,000、Indirect Cost: ¥5,430,000)
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| Outline of Final Research Achievements |
We aimed to elucidate two major interspecific barriers (two sets of critical keys and keyholes) in the stages of plant fertilization. We succeeded in demonstrating the interaction and co-crystal structures of one of them of Arabidopsis, the pollen tube attractant LURE peptides secreted from the two synergid cells on the side of the egg cell for fertilization, and the receptor kinase PRK6, which is required for LURE sensing. We have also succeeded in visualizing the differences in species recognition in pollen tube reception by the synergid cell (pollen tube bursting control) in real time.
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