Bio-organic chemical study on dynamic defense mechanisms of plants

• Project/Area Number: 22580113
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Bioproduction chemistry/Bioorganic chemistry
• Research Institution: Ibaraki University
• Principal Investigator: HASEGAWA Morifumi 茨城大学, 農学部, 准教授 (80311588)
• Project Period (FY): 2010 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2010: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
• Keywords: フィトアレキシン / イネ / テルペノイド / フラボノイド / いもち病 / 天然物化学 / 生物有機化学

Research Abstract

This study focused on rice phytoalexins (PA). ent-10-Oxodepressin was found as a novel diterpenoid PA. A novel compound was also found as a known PA-related compound. Moreover, the detoxification pathway of PA in rice blast fungus was investigated.

Research Products

• [Journal Article] Identification of a Novel Casbane-Type Diterpene Phytoalexin, <i>ent</i>-10-Oxodepressin, from Rice Leaves (2013)
  • Author(s): Inoue, Y., Sakai, M., Yao, Q., Tanimoto, Y., Toshima, H., and Hasegawa, M.
  • Journal Title: Bioscience, Biotechnology, and Biochemistry Volume: 77 Issue: 4 Pages: 760-765
  • DOI: 10.1271/bbb.120891
  • NAID: 10031170715
  • ISSN: 0916-8451, 1347-6947
  • Peer Reviewed
• [Journal Article] Identification of a Degradation Intermediate of the Momilactone A Rice Phytoalexin by the Rice Blast Fungus (2012)
  • Author(s): Imai, T., Ohashi, Y., Mitsuhara, I., Seo, S., Toshima, H., and Hasegawa, M.
  • Journal Title: Bioscience, Biotechnology, and Biochemistry Volume: 76 Issue: 2 Pages: 414-416
  • DOI: 10.1271/bbb.110756
  • NAID: 10030400428
  • ISSN: 0916-8451, 1347-6947
  • Peer Reviewed
• [Presentation] 紫外線照射イネ葉からの新奇ジテルペン化合物 ent-10- oxodepressin の単離 (2011)
  • Author(s): 井上靖乃,阪井美紀,姚群,谷本洋輔,戸嶋浩明,長谷川守文
  • Organizer: 植物化学調節学会第46回大会
  • Place of Presentation: 宇都宮大学
  • Year and Date: 2011-11-02
• [Presentation] イネフィトアレキシン モミラクトン B のいもち病菌による代謝産物の同定 (2011)
  • Author(s): 今井卓也,戸嶋浩明,長谷川守文
  • Organizer: 植物化学調節学会第46回大会
  • Place of Presentation: 宇都宮大学
  • Year and Date: 2011-11-02
• [Presentation] イネフィトアレキシンモミラクトンBのいもち病菌による代謝産物の同定 (2011)
  • Author(s): 今井卓也
  • Organizer: 植物化学調節学会第46回大会
  • Place of Presentation: 宇都宮大学
  • Year and Date: 2011-11-02
• [Presentation] 紫外線照射イネ葉からの新奇ジテルペン化合物ent-10-oxodepressinの単離 (2011)
  • Author(s): 井上靖乃
  • Organizer: 植物化学調節学会第46回大会
  • Place of Presentation: 宇都宮大学
  • Year and Date: 2011-11-02
• [Presentation] 紫外線照射イネ葉からの新奇ジテルペン化合物の単離 (2011)
  • Author(s): 井上靖乃,阪井美紀,姚群,谷本洋輔,戸嶋浩明,長谷川守文
  • Organizer: 日本農芸化学会2011年度大会
  • Place of Presentation: 京都女子大学
  • Year and Date: 2011-03-27
• [Presentation] 紫外線照射イネ秦からの新奇ジデルペン化合物の単離 (2011)
  • Author(s): 井上靖乃
  • Organizer: 日本農芸化学会2011度大会
  • Place of Presentation: 京都女子大学
  • Year and Date: 2011-03-27