| Budget Amount *help |
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2020: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2019: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2018: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2017: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
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| Outline of Final Research Achievements |
This study was conducted with the aim of gaining comprehensive understanding on how plants perceive temperature and light signals, transmit them intracellularly, and then acquire freeze tolerance under complex environmental conditions. The results using the wild type Arabidopsis thaliana and its photoreceptor mutants show that the acquisition of freeze tolerance differs depending on the wavelength of the light given during cold acclimation period, and the interactions between the light having different wavelengths in addition to the temperature and light were clearly observed. We also comprehensively elucidated the dynamics of protein phosphorylation that occurs in a short period of time after low-temperature exposure. In addition to the other physiological and proteomic findings obtained in association with the process of cold acclimation and deacclimation, we were able to advance the understanding of the complex mechanism of acquiring freeze tolerance in plants.
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