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2011 Fiscal Year Final Research Report

Studies on the transcriptional regulation of fructan exohydrolase genes during regrowth after cutting in forage grasses

Research Project

  • PDF
Project/Area Number 22780244
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Zootechnical science/Grassland science
Research InstitutionNational Agriculture and Food Research Organization

Principal Investigator

TAMURA Ken-ichi  独立行政法人農業・食品産業技術総合研究機構, 北海道農業研究センター・酪農研究領域, 主任研究員 (10414749)

Project Period (FY) 2010 – 2011
Keywordsフルクタン / フルクタン分解酵素 / 再生 / チモシー / 遺伝子発現制御
Research Abstract

A fructan exohydrolase gene, Pp6-FEH1 was transcriptionally induced in basal parts of timothy after cutting. This suggests that Pp6-FEH1 is involved in the energy supply for regrowth after cutting. Glucose and sucrose inhibited the up-regulation of Pp6-FEH1 transcripts. Transcriptional induction of Pp6-FEH1 by cold also suggests its involvement in increase of freezing tolerance by producing mono-saccharides known as cryoprotectants. Reporter assay revealed the promoter region involved in the cold induction of timothy FEH.

  • Research Products

    (2 results)

All 2011

All Journal Article (2 results) (of which Peer Reviewed: 2 results)

  • [Journal Article] Pp6-FEH1 encodes an enzyme for degradation of highly polymerized levan and is transcriptionally induced by defoliation in timothy(Phleum pratense L.)2011

    • Author(s)
      Tamura K, Sanada Y, Tase K, Komatsu T, Yoshida M
    • Journal Title

      Journal of Experimental Botany

      Volume: Vol.62, No.10 Pages: 3421-3431

    • DOI

      DOI:10.1093/jxb/err018

    • Peer Reviewed
  • [Journal Article] Research on fructan in wheat and temperate forage grasses in Japan2011

    • Author(s)
      Yoshida M, Tamura K
    • Journal Title

      JARQ

      Volume: Vol.45, No.1 Pages: 9-14

    • URL

      http://www.jircas.affrc.go.jp/kankoubutsu/JARQ/Vol_index/45_01.html

    • Peer Reviewed

URL: 

Published: 2013-07-31  

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