Plant Molecular Biology

, Volume 30, Issue 5, pp 1067–1073 | Cite as

Comparison of the expression patterns of genes coding for wheat gluten proteins and proteins involved in the secretory pathway in developing caryopses of wheat

  • Barbara Grimwade
  • Arthur S. Tatham
  • Robert B. Freedman
  • Peter R. Shewry
  • Johnathan A. Napier
Short Communication

Abstract

The synthesis of gluten proteins in the developing caryopsis of wheat is highly coordinated, with mRNAs for the various groups being detected from 11 days after anthesis, and the proteins from about 14 days. In contrast, the levels of transcripts for BiP, PDI and PPI are highest at earlier stages of development. The levels of transcripts for two small GTP binding proteins involved in the secretory pathway (Rab1 and Rab5) are also highest early in development, which is consistent with the retention of most of the gluten proteins within the ER to form protein bodies.

Key words

seed development molecular chaperones small GTP-binding proteins storage protein synthesis 

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Copyright information

© Kluwer Academic Publishers 1996

Authors and Affiliations

  • Barbara Grimwade
    • 1
    • 2
  • Arthur S. Tatham
    • 1
  • Robert B. Freedman
    • 2
  • Peter R. Shewry
    • 1
  • Johnathan A. Napier
    • 1
  1. 1.IACR-Long Ashton Research Station, Department of Agricultural SciencesUniversity of BristolBristolUK
  2. 2.Biological LaboratoryUniversity of Kent at CanterburyCanterburyUK

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