|Budget Amount *help
¥25,870,000 (Direct Cost: ¥19,900,000、Indirect Cost: ¥5,970,000)
Fiscal Year 2020: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2019: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2018: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2017: ¥8,710,000 (Direct Cost: ¥6,700,000、Indirect Cost: ¥2,010,000)
|Outline of Final Research Achievements
Abscisic acid (ABA) receptors form a larger gene family than other phytohormone receptors. Although plants are exposed to various environmental stresses on land, the emergence of many ABA receptors is thought to have achieved the prosperity of angiosperms. ABA receptors are classified into monomeric types (subclasses I and II) with high affinity and dimeric types with low affinity (subclass III) for ABA. However, physiological functions of these abscisic acid (ABA) receptors have not been revealed well. Through the development of subtype-specific mutants and receptor-selective agonists, it was suggested that dimeric receptors play a major role in both drought stress response and growth regulation, whereas monomeric receptors support ABA action with dimeric receptors. Coordinate action of these receptors contributes to plant robustness in complex stress environments.