2016 Fiscal Year Final Research Report
Seafch for signal transducer on mitigation of thermoinhibition of germination in lettuce seed by nitric oxide
| 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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| Keywords | 植物 / 発芽 / 高温ストレス / 8-ニトロｃGMP / アブシジン酸 |
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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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| Free Research Field |
生物有機化学
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