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Studies on cell wall polysaccharides related to intercellular attachment of higher plants

Research Project

Project/Area Number 07640854
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 植物生理
Research InstitutionUniversity of Tsukuba

Principal Investigator

SATOH Shinobu  University of Tsukuba, Institute of Biological Sciences, Associate Professor, 生物科学系, 助教授 (70196236)

Project Period (FY) 1995 – 1996
Project Status Completed (Fiscal Year 1996)
Budget Amount *help
¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 1996: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1995: ¥1,400,000 (Direct Cost: ¥1,400,000)
KeywordsCell wall / attachment / pectin / callus / arabinose / xylose / carrot / 多糖
Research Abstract

Carrot embryogenic callus (EC) loses its embryogenic competence and becomes non-embryogenic callus (NC) during long-term culture. With the loss of embryogenic competence, the cell clusters become smaller and the extent of intercellular attachments is reduced. Pectic fractions prepared from EC and NC were separated by gel filtration and the ratio of the amount of arabinose to that of galactose was strongly and positively correlated with the size of cell clusters in several different cultures. Both neutral sugar chains are composed of three regions. The middle galactan region is composed of 6-linked galactose and is larger and more frequently branched in NC than in EC.The terminal arabinan region is composed of 5-linked arabinose, and the size is larger in EC than in NC.
A substantial level of xylose was also detected in the pectic polysaccharides. The xylose was directly linked to galacturonic acid as a terminal residue. The amount of xylose was positively correlated with the size of cell clusters.
The significance of the neutral sugar chains of pectins in the interaction of cell wall components and intercellular attachment is discussed.

Report

(3 results)
  • 1996 Annual Research Report   Final Research Report Summary
  • 1995 Annual Research Report
  • Research Products

    (9 results)

All Other

All Publications (9 results)

  • [Publications] A.Kikuchi: "Differeces in pectic polysaccharides between carrot embryogenic and non-embryogenic calli." Plant Cell Report. 14. 279-284 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] A.Kikuchi: "Variations in the structure of neutral sugar chains in the pectic polysaccharids of morphologically different carrot calli and correlations with the size of cell" Planta. 198. 634-639 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] A.Kikuchi: "A xylogalacturonan whose level is dependent on the size of cell clusters is present in the pectin from cultured carrot cells." Planta. 200. 369-372 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] A.Kikuchi: "Differeces in pectic polysaccharides between carrot embryogenic and non-embryogenic calli" Plant Cell Report. 14. 279-284 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] A.Kikuchi: "Variations in the structure of neutral sugar chains in the pectic polysaccharids of morphologically different carrot calli and correlations with the size of cell clusters" Planta. 198. 634-639 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] A.Kikuchi: "A xylogalacturonan whose level is dependent on the size of cell clusters is present in the pectin from cultured carrot cells" Planta. 200. 369-372 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] A.Kikushi: "Variations in the structure of neutral sugar chains in the pectic polysaccharides of morphologically different carrot calli and correlations with the size of cell clusters" Planta. 198. 634-639 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] A.Kikuchi: "A xylogalacturonan whose level is dependent on the size of cell clusters is present in the pectin from cultured carrot cells" Planta. 200. 369-372 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] A. Kikuchi: "Differences in pectic polysaccharides between carrot embryogenic and non-embryogenic calli" Plant Cell Report. 14. 279-284 (1995)

    • Related Report
      1995 Annual Research Report

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Published: 1995-04-01   Modified: 2016-04-21  

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