Analysis of phosphatidc acid mediated plant immune priming and application for disease resistance plants.

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K07314
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Plant protection science
• Research Institution: Kochi University
• Principal Investigator: KIBA Akinori 高知大学, 教育研究部総合科学系生命環境医学部門, 教授 (50343314)
• Co-Investigator(Kenkyū-buntansha): 大西 浩平 高知大学, 教育研究部総合科学系生命環境医学部門, 教授 (50211800) ; 曵地 康史 高知大学, 教育研究部総合科学系生命環境医学部門, 教授 (70291507)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: SEC14脂質輸送タンパク質 / フォスフォリパーゼC / フォスフォリパーゼD、 / SnRK1 / PAMPs誘導免疫 / 病害抵抗性

Outline of Final Research Achievements

Phospholipids-based signaling cascades are common signal transduction mechanisms in plant immune responses. We have been identified genes related to phospholipid turnovers from Nicotiana benthamiana. The SEC14 phospholipid transfer protein (NbSEC14)-silencing compromised jasmonic acid (JA)-dependent immune responses. Activities of phospholipase C and D, and the synthesis of phosphatidic acid (PA) was significantly reduced in NbSEC14-silenced plants. The NbSEC14-silencing compromised pathogen associated molecular patterns (PAMPs)-triggered immune responses and basal defense against Ralstonia solanacearum and Pseudomonas syringae. Among the reported PA-target proteins, we found that respirotary burst oxidase homolog B, phosphoinositide dependent proteinkinase 1 and sucrose non-fermenting 1 related kinase are closely related to immune responses.

Free Research Field

植物病理学