Bark endophytic fungi as the agent for acquired defense on their host trees.

• Project/Area Number: 23658134
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Forest science
• Research Institution: Forestry and Forest Products Research Institute
• Principal Investigator: MASUYA Hayato 独立行政法人森林総合研究所, 東北支所, チーム長 (70391183)
• Co-Investigator(Kenkyū-buntansha): ICHIHARA Yu 森林総合研究所, 関西支所, グループ長 (10353583) ; SAHASHI Norio 森林総合研究所, 森林微生物研究領域, 領域長 (10202102)
• Project Period (FY): 2011 – 2013
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000); Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2011: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
• Keywords: Diaporthe / Colpoma / Xylaria / 抗菌物質 / 胴枯病 / 多様性 / 内生菌 / クロサイワイタケ科 / 樹皮 / 潜在感染 / 病原性 / 無病徴 / 胴枯病菌 / アカマツ / コナラ / ミズナラ / ブナ

Research Abstract

Bark endophytic fungi were isolated from twigs of <i>Pinus densiflorae</i>, Quercus serrata, Quercus crispula and Fagus crenata in four different localities. Their species composition was quite different among wood species and localities. Dominant order of the endophyte was Diaporthales which is known as the agents of tree canker diseases. Diaportalean species with weak virulence appeared to infect without symptoms on the host trees. At a part of the localities, Rhytismatalean species with strong anti-fungal compound was dominant, and seems to inhibit other fungal infection. This species may be a useful candidate for giving acquired defense on the host trees. This knowledge can develop new method for biological control for tree disease, particularly infectious canker disease on twigs.

Research Products

• [Presentation] 樹木枝内生菌の多様性と宿主に対する生態的役割 (2014)
  • Author(s): 升屋勇人, 市原優, 佐橋憲生
  • Organizer: 第125回日本森林学会大会要旨p.145
  • Place of Presentation: 大宮
  • Year and Date: 2014-03-29
• [Presentation] 樹木枝内生菌の多様性と宿主に対する生態的役割 (2014)
  • Author(s): 升屋勇人、市原優、佐橋憲生
  • Organizer: 第125回日本森林学会大会
  • Place of Presentation: 大宮市
• [Presentation] 樹木枝内生菌の多様性と主要種間の拮抗関係 (2013)
  • Author(s): 升屋勇人, 市原優, 佐橋憲生
  • Organizer: 東北森林科学会第18回大会要旨 p.43
  • Place of Presentation: 山形
  • Year and Date: 2013-08-29
• [Presentation] 樹木枝内生菌の多様性と主要種間の拮抗関係 (2013)
  • Author(s): 升屋勇人, 市原優, 佐橋憲生
  • Organizer: 東北森林科学会第18回大会
  • Place of Presentation: 山形市
• [Presentation] 樹皮枝内生菌の多様性 (2012)
  • Author(s): 升屋勇人, 市原優, 佐橋憲生, 廣岡裕吏
  • Organizer: 日本菌学会第56回大会要旨集 p.66
  • Place of Presentation: 岐阜
  • Year and Date: 2012-05-27
• [Presentation] 樹皮枝内生菌の多様性 (2012)
  • Author(s): 升屋勇人・市原 優・佐橋憲生・廣岡裕吏
  • Organizer: 日本菌学会
  • Place of Presentation: 岐阜大学(岐阜市)