2021 Fiscal Year Final Research Report
Elucidation of molecular mechanisms of dehydration stress sensing via mobile peptides in leaf vasculature
Project/Area Number |
19H03255
|
Research Category |
Grant-in-Aid for Scientific Research (B)
|
Allocation Type | Single-year Grants |
Section | 一般 |
Review Section |
Basic Section 44030:Plant molecular biology and physiology-related
|
Research Institution | Tokyo University of Science (2021) Institute of Physical and Chemical Research (2019-2020) |
Principal Investigator |
Takahashi Fuminori 東京理科大学, 先進工学部生命システム工学科, 准教授 (00462698)
|
Project Period (FY) |
2019-04-01 – 2022-03-31
|
Keywords | ペプチド / 植物ホルモン / 環境応答 |
Outline of Final Research Achievements |
In this study, we elucidated molecular mechanism that functions downstream of peptide-receptors that transmit drought stress information from roots to leaves. As a result, we clarified that a plurality of representative protein kinases were activated in a drought stress -dependent manner in the downstream of the receptor. We also identified candidate transcription factors that function in the downstream of the receptor. These results indicate that protein kinases and transcription factor-mediated phosphorylation signaling pathways play an important role in the peptide-receptor signaling.
|
Free Research Field |
植物分子生物学
|
Academic Significance and Societal Importance of the Research Achievements |
植物にとって乾燥ストレスを感受した後、乾燥耐性付与に関わるアブシジン酸(ABA)の合成を促すシグナル伝達は重要である。本研究では、乾燥ストレス応答において、根から葉に移動するペプチドが葉の維管束で受容され、ABA合成酵素遺伝子の発現を誘導するにいたるまでのリン酸化シグナル伝達を制御する分子メカニズムを解析した。これら基礎的研究知見を活用することで、ストレス耐性農作物の開発などの応用利用にも貢献できる研究成果となった。
|