Investigation on the chemical ecology characteristics of submerged macrophytes to establish the vegetation for improvement of water quality

• Project/Area Number: 21510015
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Environmental dynamic analysis
• Research Institution: Hiroshima University
• Principal Investigator: NAKAI Satoshi 広島大学, 大学院・工学研究院, 准教授 (80313295)
• Co-Investigator(Kenkyū-buntansha): NISHIJIMA Wataru 広島大学, 環境安全センター, 教授 (20243602)
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2011: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2010: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2009: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
• Keywords: アレロパシー / 植生帯 / シアノバクテリア / ホザキノフサモ / 藍藻類 / 増殖抑制

Research Abstract

The release rates of 8 anti-cyanobacterial allelochemicals from Myriophyllum spicatum were determined. By adding the compounds to(i) a cyanobacterial medium where a cyanobacterium and green algae were inoculated or(ii) pond water including cyanobacterial on the basis of their release rates so as to simulate their excretion by M. spicatum, the cyanobacterial dominance was prevented, though the culture conditions are more preferable for the cyanobacterial growth.

Research Products

• [Journal Article] Anti-cyanobacterial allelopathic effects of plants-used for artificial floating islands (2010)
  • Author(s): Satoshi NAKAI, et al
  • Journal Title: Allelopathy Journal Volume: 26 Pages: 113-122
  • Peer Reviewed
• [Journal Article] Polyphenols and fatty acids responsible for anti-cyanobacterial allelopathic effects of submerged macrophyte Myriophyllum spicatum
  • Author(s): S. Nakai, et al
  • Journal Title: Water Science & Technology Volume: in press
  • Peer Reviewed
• [Presentation] Polyphenols and fatty acids responsible for anti-cyanobacterial allelopathic effects of a submerged macrophyte Myriophyllum spicatum (2011)
  • Author(s): S. Nakai et al
  • Organizer: 14th World Lake Conference
  • Place of Presentation: Austin, Texas USA
  • Year and Date: 2011-11-01
• [Presentation] Feasibility of using the allelopathic effect of Myriophyllum spicatum for control of cyanobacterial growth (2011)
  • Author(s): S. Nakai et al
  • Organizer: The 4th IWA-ASPIRE Conference & Exhibition
  • Place of Presentation: Tokyo, JAPAN
  • Year and Date: 2011-10-03
• [Presentation] シアノバクテリアの増殖抑制への沈水植物のアレロパシーの利用可能性の評価 (2011)
  • Author(s): 瀬戸範彦他
  • Organizer: 第45回日本水環境学会年会
  • Place of Presentation: 北海道大学
  • Year and Date: 2011-09-11
• [Presentation] ホザキノフサモのMicrocystis aeruginosaに対するアレロパシー効果への影響因子 (2011)
  • Author(s): 瀬戸範彦ら
  • Organizer: 第14回日本水環境学会シンポジウム
  • Place of Presentation: 宮城県仙台市
  • Year and Date: 2011-09-11
• [Presentation] Polyphenols and fatty acids responsible for anti-cyanobacterial allelopathic effects of a submerged macrophyte Myriophyllum spicatum (2010)
  • Author(s): Satoshi Nakai, et al
  • Organizer: World Water Congress and Exhibition
  • Place of Presentation: カナダ,モントリオール
  • Year and Date: 2010-09-05
• [Presentation] Polyphenols and fatty acids responsible for anti-cyanobacterial allelopathic effects of a submerged macrophyte Myriophyllum spicatum (2010)
  • Author(s): Satoshi NAKAI, 他4名
  • Organizer: World Water Congress and Exhibition
  • Place of Presentation: カナダ、モントリオール
  • Year and Date: 2010-09-05
• [Book] Fundamental study on the aquatic environment restoration using allelopathic effects caused by plants, Ann. Rep. Interdisciplinary Res. Inst. Environ. Sci (2009)
  • Author(s): Satoshi Nakai
• [Book] The functional role of Phragmites australis in the inhibition of cyanobacterial growth and the transition of plant species, Aquatic Ecosystem Research Trends,(G. H. Nairne, Ed.) (2009)
  • Author(s): Sheng Zhou, Satoshi Nakai, Megumi Nishikawa, Masaaki Hosomi
• [Remarks] ホームページ
  • URL: http://environ.hiroshima-u.ac.jp/HPmain/projects/pdf/allelopathy.pdf
• [Remarks]
  • URL: http://environ.hirosima-u.ac.jp/HPmain/projects/pdf/allelopathy.pdf