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Anatomical stucy on the tyloses and gums in the vessels of Japanese hardwoods

Research Project

Project/Area Number 03454078
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field 林産学
Research InstitutionHokkaido University

Principal Investigator

OHTANI Jun  Hokkaido University, Faculty of Agriculture, Associate Professor, 農学部, 助教授 (30001465)

Co-Investigator(Kenkyū-buntansha) SANO Yuzou  Hokkaido University, Faculty of Agriculture, Instructor, 農学部, 助手 (90226043)
FUNADA Ryo  Hokkaido University, Faculty of Agriculture, Instructor, 農学部, 助手 (20192734)
Project Period (FY) 1991 – 1993
Project Status Completed (Fiscal Year 1993)
Budget Amount *help
¥6,600,000 (Direct Cost: ¥6,600,000)
Fiscal Year 1993: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1992: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1991: ¥5,100,000 (Direct Cost: ¥5,100,000)
KeywordsTyloses / Gums / Ray parenchyma cell / Axial parenchyma cell / Japanese hardwoods / SEM / Vessel / 走査電子顕微境 / ガム様物質 / 道管柔細胞間壁孔 / チロ-ス / 環孔材 / 散孔材
Research Abstract

the occurrenceand morphology of natural tyloses and gums in the vessels of 50 Japanese hardwoods (15 ring-, 34 diffuse- and 1 radial-porous woods) were investigated using SEM.Tyloses were present exclusively or predominantly in 23 species (12 ring-, 10 diffuse- and 1 radial-porous woods) and gums in 15 species (3 ring- and 12 diffuse-porous woods). In the pore zones of most of the ring-porous woods both tyloses and gums first occurred in an earlier ring number from the bark than in the diffuse- and radial-porous woods. Tyloses and gums originated from both ray and axial parenchyma cells in most species which have pt pairs connecting these cells to the vessels. Except for four species, the maximum and minimum diameters of the inner pit aperture from vessels to parenchyma cells were greater than 5 and 2 mu m. respectively, in those species with tyloses, whereas, the diameters were less than these values in species having gums. The forms of tylowis blockings in hardwood vessels were closely related to parenchyma patterns.

Report

(4 results)
  • 1993 Annual Research Report   Final Research Report Summary
  • 1992 Annual Research Report
  • 1991 Annual Research Report
  • Research Products

    (15 results)

All Other

All Publications (15 results)

  • [Publications] 斉藤智子: "チロースの発生と形態についてのSEM観察(英文)" 木材学会誌. 38. 215-221 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 斉藤智子: "サクラ属3種における道管閉塞物のSEM観察" 日本木材学会北海道支部講演集. 23. 15-18 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 斉藤智子: "チロース,ゴム様物質の発生と形態" 日本木材学会北海道支部講演集. 24. 1-4 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 斉藤智子: "日本産広葉樹の道管のチロースとガム物質の発生と形態" IAWA Journal. 14. 359-371 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Saitoh, T.: "SEM observations on the occurrence and morphology of tyloses" Mokuzaigakkaishi. 38(3). 215-221 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Saitoh, T.: "The occurrence and merphology of tyloses and gums in the vessels of Japanese hardwoods" JAWA Journal. 14(4). 359-371 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 斉藤智子: "サクラ属3種における道管閉塞物のSEM観察" 日本木材学会北海道支部講演集. 23. 15-18 (1991)

    • Related Report
      1993 Annual Research Report
  • [Publications] 斉藤智子: "チロース,ゴム様物質の発生と形態" 日本木材学会北海道支部講演集. 24. 1-4 (1992)

    • Related Report
      1993 Annual Research Report
  • [Publications] 斉藤智子: "チロースの発生と形態についてのSEM観察(英文)" 木材学会誌. 38. 215-221 (1992)

    • Related Report
      1993 Annual Research Report
  • [Publications] 斉藤智子: "日本産広葉樹の道管のチロースとガム物質の発生と形態" IAWA Journal. 14. 359-371 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 斉藤 智子: "チロースの発生と形態についてのSEM観察(英文)" 木材学会誌. 38. 215-221 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] 斉藤 智子: "サクラ属3種における道管閉塞物のSEM観察" 日本木材学会北海道支部講演集. 23. 15-18 (1991)

    • Related Report
      1992 Annual Research Report
  • [Publications] 斉藤 智子: "チロース、ゴム様物質の発生と形態" 日本木材学会北海道支部講演集. 24. 1-4 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] 斉藤 智子: "チロ-スの発生と形態についてSEM観察(英文)" 木材学会誌. 38. (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] 斉藤 智子: "サクラ属3種における道管閉塞物のSEM観察" 日本木材学会北海道支部講演集. 23. (1991)

    • Related Report
      1991 Annual Research Report

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Published: 1991-04-01   Modified: 2016-04-21  

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