Analysis of the role of defense mechanisms in the legume-rhizobia symbioisis.

• Project/Area Number: 21780043
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Plant pathology
• Research Institution: (独)農業生物資源研究所 (2010); National Institute of Agrobiological Sciences (2009)
• Principal Investigator: NAKAGAWA Tomomi (独)農業生物資源研究所, 植物・微生物間相互作用研究ユニット, 任期付研究員 (90396812)
• Project Period (FY): 2009 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2010: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000); Fiscal Year 2009: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
• Keywords: 共生 / 病理学 / 植物微生物間相互作用 / 防御応答 / ミヤコグサ / Nod Factor / 受容体

Research Abstract

Nitrogen-fixing symbiosis between legumes and rhizobia is initiated by the recognition of rhizobial Nod factors (NFs) by host plants. NFs are diversely modified derivatives of chitin oligosaccharide, a fungal elicitor that induces defense responses in plants. Recent evidence has shown that both NFs and chitin elicitors are recognized by structurally-related LysM-receptor kinases. Here, we demonstrated that NF receptors are evolved from the chitin receptors with limited alterations.

Research Products

• [Journal Article] From defense to symbiosis : Limited alterations in the kinase domain of LysM receptor-like kinases are crucial for evolution of legume-Rhizobium symbiosis. (2011)
  • Author(s): Nakagawa T, Kaku H, Shimoda Y, Sugiyama A, Shimamura M, Takanashi K, Yazaki K, Aoki T, Shibuya N, Kouchi H
  • Journal Title: Plant J. 65 Pages: 169-180
• [Journal Article] From defense to symbiosis : Limited alterations in the kinase domain of LysM receptor-like kinases are crucial for evolution of legume-Rhizobium symbiosis. (2011)
  • Author(s): 中川知己
  • Journal Title: The Plant Journal Volume: 65 Pages: 169-180
  • Peer Reviewed
• [Journal Article] How many peas in a pod? Legume genes responsible for mutualistic symbioses underground. (2010)
  • Author(s): Kouchi H, Imaizumi-Anraku H, Hayashi M, Hakoyama T, Nakagawa T, Umehara Y, Suganuma N, Kawaguchi M
  • Journal Title: Plant and Cell Physiology 51 Pages: 1381-1397
  • NAID: 10027351824
• [Journal Article] How many peas in a pod? Legume genes responsible for mutualistic symbioses underground. (2010)
  • Author(s): 河内宏
  • Journal Title: Plant and Cell Physiology Volume: 51 Pages: 1381-1397
  • Peer Reviewed
• [Presentation] 「宿主植物から視た生物間相互作用」"共生における植物のセキュリティシステム" (2010)
  • Author(s): 中川知己
  • Organizer: 日本植物学会2010年度年会シンポジウム
  • Place of Presentation: 中部大学
  • Year and Date: 2010-09-10
• [Presentation] 共生における植物のセキュリティシステム (2010)
  • Author(s): 中川知己
  • Organizer: 日本植物学会
  • Place of Presentation: 中部大学
  • Year and Date: 2010-09-10
• [Presentation] 「防御と共生:植物-微生物相互作用に見る普遍性と特殊性」"抵抗性から共生へ:Nod Factor受容体の分子進化" (2010)
  • Author(s): 中川知己
  • Organizer: 日本植物生理学会2009年度年会シンポジウム
  • Place of Presentation: 熊本大学
  • Year and Date: 2010-03-21
• [Presentation] 抵抗性から共生へ:Nod Factor 受容体の分子進化 (2010)
  • Author(s): 中川知己
  • Organizer: 第51回日本植物生理学会年会
  • Place of Presentation: 熊本大学
  • Year and Date: 2010-03-21
• [Presentation] ミヤコクサにおけるNod Factorシグナリングとキチンシグナリングの比較解析 (2009)
  • Author(s): 中川知己
  • Organizer: 第19回植物微生物研究会
  • Place of Presentation: 松本市あがたの森文化会館
  • Year and Date: 2009-09-10
• [Presentation] ミヤコクサにおける Nod Factor シグナリングとキチンシグナリングの比較解析 (2009)
  • Author(s): 中川知己
  • Organizer: 第19回植物微生物研究会
  • Place of Presentation: 松本市あがたの森文化会館
  • Year and Date: 2009-09-10