| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Outline of Final Research Achievements |
When Arabidopsis kam2 mutants are germinated on a sucrose-free solid medium, a certain percentage of individuals fail to develop true leaves after cotyledon expansion (this phenotype is called sucrose-requiring). This study revealed that the kam2 mutant phenotype was more prone to accumulation of excess water in the body and growth arrest (so-called vitrification) than the wild type, indicating an apparent sucrose requirement. The addition of sucrose to the medium may act to compensate for the defects caused by abnormal transport in kam2. Apparent sucrose requirement was also observed in wild-type Arabidopsis, suggesting that it may be an environmental response in which plants germinated in an unfavorable environment temporarily stop growing.
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