| Project/Area Number |
15K14679
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Plant nutrition/Soil science
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| Research Institution | Kyushu University |
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Principal Investigator |
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| Research Collaborator |
IWAI Sumio 鹿児島大学, 農学部
OMURA Ryouta 九州大学, 生物資源環境科学府
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| Project Period (FY) |
2015-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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| Keywords | 植物 / 発芽 / 高温ストレス / 8-ニトロｃGMP / アブシジン酸 / 一酸化窒素 / 8-ニトロ-cGMP / 種子発芽 / 8-ニトロcGMP |
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| Outline of Final Research Achievements |
It was known that nitric oxide (NO) improve plant functional decline under environmental stress，but the mechanism of action remain unclear. In this subject, we investigated the preventive mechanism of thermoinhibition at 33 °C on lettuce seed germination by the application of NO. The results presented in this study show that the NO induced the synthesis of 8-nitro-cGMP in seeds in the presence of reactive oxygen species, and 8-Nitro-cGMP triggered the germination of lettuce seed at high temperature. This study therefore showed that 8-nitro-cGMP acts as a signaling molecule on germination and that a NO/8-nitro-cGMP signaling cascade operates in seed at high temperature.
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