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Analysis on adaptability of old Cryptomeria japonica tree for water stress using experimental methods

Research Project

Project/Area Number 11660141
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 林学
Research InstitutionThe University of Tokyo

Principal Investigator

TANGE Takeshi  The Univ. Tokyo, Grad. School of Agric. Life Sci., Professor, 大学院・農学生命科学研究科, 教授 (20179922)

Co-Investigator(Kenkyū-buntansha) MASUMORI Masaya  The Univ. Tokyo, Grad. School of Agric. Life Sci., Lecturer, 大学院・農学生命科学研究科, 講師 (50282702)
SUZUKI Makoto  The Univ. Tokyo, Grad. School of Agric. Life Sci., Lecturer, 大学院・農学生命科学研究科, 講師 (40012091)
YAGI Hisayoshi  The Univ. Tokyo, Grad. School of Agric. Life Sci., Professor, 大学院・農学生命科学研究科, 教授 (80191089)
Project Period (FY) 1999 – 2000
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,900,000)
Fiscal Year 2000: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 1999: ¥2,500,000 (Direct Cost: ¥2,500,000)
KeywordsCryptomeria japonica / aging / water stress / Elasticity / pressure volume curve method / photosynthesis / stomatal limitation / C02 fixation capacity / 高齢木 / P-V曲線法 / 接ぎ木 / 水ポテンシャル / 膨圧 / 細胞外水量 / 体積細胞弾性係数 / スギ高齢木 / 水分特性
Research Abstract

Position of canopy becomes higher with tree growth. Although tall trees have advantages for light competition, water stress becomes influencing factor for photosynthesis because sap flow resistance in tree body becomes large. In the present study, we tried to prove that increasing the tree height of Cryptomeria japonica result in depression of photosynthesis by experimental method. We also studied on adaptive response in water-relations of needles for increasing water stress in midday. By comparison between the newly developed needles from the scions grafted from tall trees to small seedlings and the needles of the tall tree, we could prove that the photosynthetic activity of the tall trees was depressed by water stress, which resulted in stomatal closure and depression of Rubisco activity. For the adaptive response of needles for water deficit in midday, we found that in situ needles tended to maintain higher water potential than those expected from the Pressure-Volume curve. This adaptive response was resulted from osmotic adjustment and decrease in elasticity of cell wall. This adaptive response was more obvious on the needles of tall trees than ones of small seedlings. This adaptability on water relations may be regarded as one of the reasons why aged Crypyomeria japonica can keep high productivity and grow up to very tall trees more than 50 m.

Report

(3 results)
  • 2001 Final Research Report Summary
  • 2000 Annual Research Report
  • 1999 Annual Research Report
  • Research Products

    (6 results)

All Other

All Publications (6 results)

  • [Publications] 小平純, 鈴木誠, 益守眞也, 丹下健: "スギ高樹高木の針葉の水分特性値の日変化"日本林学会大会講演要旨集. 112. 100 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 小平純, 鈴木誠, 丹下健: "スギ高樹高木における含水率-水ポテンシャル関係の日変化"日本林学会大会講演要旨集. 113(印刷中). (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 松崎潤, 測定真利子, 小平純, 鈴木誠, 丹下健: "スギ高木に接いだ葉の光合成"日本林学会大会講演要旨集. 113(印刷中). (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] KODAIRA, J., SUZUKI, M., MASUMORI, M., YAGI, H., TANGE, T.: "Diurnal change in water relations of needles of tall Cryptomeria japonica trees"Proc. 112nd meet. Jpn. For. Soc.. 100 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] KODAIRA, J., SUZUKI, M. , TANGE, T.: "Diurnal change in relationship between water contents and water potential of needles of tall Cryptomeria japonica trees"Proc. 113rd meet. Jpn. For. Soc.. (in press). (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] MATSUZAKI, J., NORISADA, M. , KODAIRA, J. , SUZUKI, M., TANGE, T./: "Photosynthesis of needles grafted to tall Cryptomeria japonica trees"Proc. 113rd meet. Jpn. For. Soc.. (in press). (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary

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Published: 1999-04-01   Modified: 2016-04-21  

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