Tolerance and resistance of sorghum to Striga

• Project/Area Number: 23405023
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 海外学術
• Research Field: Bioproduction chemistry/Bioorganic chemistry
• Research Institution: Kobe University
• Principal Investigator: SUGIMOTO Yukihiro 神戸大学, (連合)農学研究科(研究院), 教授 (10243411)
• Co-Investigator(Kenkyū-buntansha): INOUE Tomoe 鳥取大学, 乾燥地研究センター, プロジェクト研究員 (30403380)
• Project Period (FY): 2011-04-01 – 2014-03-31
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥18,070,000 (Direct Cost: ¥13,900,000、Indirect Cost: ¥4,170,000); Fiscal Year 2013: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000); Fiscal Year 2012: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000); Fiscal Year 2011: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
• Keywords: ストライガ / ソルガム / イネ / 抵抗性 / 耐性 / 感受性 / 根寄生植物 / 宿主作物

Research Abstract

This study aims to gain knowledge on tolerance/resistance mechanisms of sorghum and rice to Striga hermonthica. We clarified that differences in stomatal response to Abscisic acid (ABA) between sorghum and Striga induced water and solutes transfer from the host to the parasite. No evidence was found for ABA transfer from Striga to sorghum and this is not consistent with the hypothesis that tolerance to Striga relates to inactivation of ABA metabolism in host plants. Varietal differences in Striga resistance of host plants shown in rhizotron evaluations were confirmed in greenhouse and field experiments. Soil seedbank density and strain of Striga affected resistance of rice varieties, providing important information for the durability of Striga resistance.

Research Products

• [Journal Article] Photosynthetic capacity and stomatal response of root hemi-parasite Striga hermonthica and sorghum under short-term soil water stress (2013)
  • Author(s): Inoue, T., Yamauchi, Y., Amani Aamed Eltyeb, Samejima, H., Abdel Gabar Eltaybe Babiker, Sugimoto, Y
  • Journal Title: Biologia Plantarum Volume: 57 (4) Pages: 773-777
  • Peer Reviewed
• [Journal Article] Photosynthetic capacity and stomatal response of root hemi-parasite Striga hermonthica and sorghum under short-term soil water stress (2013)
  • Author(s): (1) Inoue, T., Yamauchi, Y., Amani Aamed Eltyeb, Samejima, H., Abdel Gabar Eltaybe Babiker, Sugimoto, Y.
  • Journal Title: Biologia Plantarum Volume: 57 Issue: 4 Pages: 773-777
  • DOI: 10.1007/s10535-013-0348-7
  • Peer Reviewed
• [Journal Article] Photosynthetic capacity and stomatal response of root hemi-parasite Striga hermonthica and sorghum under short-term soil water stress (2013)
  • Author(s): Tomoe INOUE, Yasuo YAMAUCHI, Amani Aamed Eltyeb, Hiroaki SAMEJIMA, Abdel Gabar Eltaybe Babiker, Yukihiro SUGIMOTO
  • Journal Title: Biologia Plantarum Volume: in press
  • Peer Reviewed
• [Journal Article] Ent-2'-epi-orobanchol and its acetate, as germination stimulants for Striga gesnerioides seeds isolated from cowpea and red clover (2011)
  • Author(s): Kotomi Ueno, et al
  • Journal Title: Journal of Agricultural and Food Chemistry Volume: 59 Issue: 19 Pages: 10485-10490
  • DOI: 10.1021/jf2024193
  • Peer Reviewed
• [Journal Article] Structural requirements of strigolactones for germination induction of Striga gesnerioides seeds (2011)
  • Author(s): Kotomi Ueno, et al
  • Journal Title: Journal of Agricultural and Food Chemistry Volume: 59 Issue: 17 Pages: 9226-9231
  • DOI: 10.1021/jf202418a
  • Peer Reviewed
• [Presentation] ストライガの土壌中種子密度および生態型が陸稲品種の抵抗性に及ぼす影響 (2014)
  • Author(s): 鮫島啓彰, Abdel Gabar Babiker, 杉本幸裕
  • Organizer: 日本作物学会
  • Place of Presentation: 千葉大学
• [Presentation] Evaluation of resistance of upland rice varieties to Striga hermonthica through laboratory, pot and field experiments (2014)
  • Author(s): Samejima, H., Yoshimoto, C., Mustafa, A. L., Babiker, A. G., Sugimoto, Y
  • Organizer: The 3rd Pest Management Conference of the Sudan
  • Place of Presentation: Wad Medani, Sudan
• [Presentation] Evaluation of resistance of upland rice varieties to Striga hermonthica through laboratory, pot and field experiments (2013)
  • Author(s): Samejima H., Yoshimoto C., Babiker A. G. T., Sugimoto Y
  • Organizer: 12th World Congress of Parasitic Plants
  • Place of Presentation: Sheffield, UK
• [Presentation] ライゾトロン法でストライガ抵抗性を示した陸稲品種の野外試験での評価 (2013)
  • Author(s): 鮫島啓彰, 吉本千壽, Abdel Gabar Babiker, 杉本幸裕
  • Organizer: 日本作物学会
  • Place of Presentation: 明治大学
• [Presentation] Evaluation of resistance of upland rice varieties to Striga hermonthica through laboratory, pot and field experiments (2012)
  • Author(s): Samejima, H., Yoshimoto, C., Babiker A. G. T., Sugimoto, Y
  • Organizer: International Seminar on SATREPS Project for Striga Management
  • Place of Presentation: Khartoum, Sudan
  • Year and Date: 2012-09-23
• [Presentation] Translocation of host materials to parasite : Stomatal response and photosynthetic capacity of Striga hermonthica and sorghum under water stress (2012)
  • Author(s): Inoue, T., Yamauchi, Y., Amani, H. E., Samejima, H., Ueno, K., Babiker A. G. T., Sugimoto, Y
  • Organizer: International Seminar on SATREPS Project for Striga Management
  • Place of Presentation: Khartoum, Sudan
  • Year and Date: 2012-09-23
• [Presentation] 陸稲の異なる三種のストライガ抵抗性についてライゾトロン法を用いた評価 (2012)
  • Author(s): 鮫島啓彰、吉本千壽、Abdel Gabar Babiker, Samia Osman Yagoub、杉本幸裕
  • Organizer: 日本作物学会
  • Place of Presentation: 東京農工大学
  • Year and Date: 2012-03-30
• [Presentation] Gas exchange and stomatal response of root parasitic weed Striga hermonthica and sorghum under water stress (2012)
  • Author(s): Inoue, T., Yamauchi, Y., Amani Aamed Eltyeb, Samejima, H., Abdel Gabar Eltaybe Babiker, Sugimoto, Y
  • Organizer: The 12th Symposium of International Society of Root Research
  • Place of Presentation: Dundee, UK
• [Presentation] Gas exchange and stomatal response of root parasitic weed Striga hermonthica and sorghum under water stress (2012)
  • Author(s): Tomoe INOUE, Yasuo YAMAUCHI, Amani Aamed Eltyeb, Hiroaki SAMEJIMA, Abdel Gabar Eltaybe Babiker, Yukihiro SUGIMOTO
  • Organizer: The eighth symposium of the International Society of Root Research
  • Place of Presentation: Dundee, UK
• [Presentation] 土壌乾燥条件下での根寄生雑草ストライガとソルガムのガス交換と気孔反応 (2011)
  • Author(s): 井上知恵, 山内靖雄, Amani Hamad Eltayeb, 鮫島啓彰, 上野琴巳, Abdel Gabar Babiker, 杉本幸裕
  • Organizer: 植物化学調節学会第46回大会
  • Place of Presentation: 宇都宮大学