| Project/Area Number |
12460066
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
林学
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| Research Institution | The University of Tokyo |
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Principal Investigator |
SUZUKI Kazuo Grad. Sch. Agr. Life Sci. The University of Tokyo, Prof., 大学院・農学生命科学研究科, 教授 (80162931)
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| Co-Investigator(Kenkyū-buntansha) |
NARA Kazuhide Asian Natural Env. Sci. Center, The University of Tokyo, Assist. Prof., アジア生物資源環境研究センター, 助手 (60270899)
YAMADA Toshihiro Grad. Sch. Agr. Life Sci.,The University of Tokyo, Assoc. Prof., 大学院・農学生命科学研究科, 助教授 (30332571)
HOGETSU Taizo Asian Natural Env. Sci., The University of Tokyo, Center Prof., アジア生物資源環境研究センター, 教授 (10107170)
SAKAUE Daisuke Grad. Sch. Agr. Life Sci., The University of Tokyo, Assist. Prof., 大学院・農学生命科学研究科, 助手 (90313080)
MATSUSHITA Norihisa Grad. Sch. Agr. Life Sci., The University of Tokyo, Assist. Prof., 大学院・農学生命科学研究科, 助手 (00282567)
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| Project Period (FY) |
2000 – 2001
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| Project Status |
Completed (Fiscal Year 2001)
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| Budget Amount *help |
¥15,900,000 (Direct Cost: ¥15,900,000)
Fiscal Year 2001: ¥3,200,000 (Direct Cost: ¥3,200,000)
Fiscal Year 2000: ¥12,700,000 (Direct Cost: ¥12,700,000)
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| Keywords | Pine Wilt disease / Disease development / Cavitation / Surface-active agent / Surface tension / Disease control / Antiphotosynthesis / Oligosaccharide / 病徴制御物質 / 病徴発現原因物質 |
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| Research Abstract |
To elucidate the relationship between factors of disease development control and physiological status of host cells in the pine wilt disease, reactions between pine wood nematode and pine host cells were examined.
(1) Susceptible hosts to pine wilt disease decrease their surface tension with the development of disease.
(2) Surfactants and oxalic acid increase after infection of pine wood nematode.
These substances induce cavitation in the living pine wood.
(3) The disease development has a close relation with ethylene production in the living wood.
(4) Incidence ofcavitation induces the decrease of wood moisture content in the living wood.
(5) Decrease of oligosaccharide by antiphotosynthesis treatments is considered to have a close relationship with disease development.
From the results, black boxes in disease development of pine wilt disease was made clear in connection with cavitaion.
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