Biologia Plantarum

, 32:145 | Cite as

Changes in macromolecule syntheses under special consideration of UNA and the energy providing system in imbibing embryos of different agedagrostemma githago L. Seeds

  • R. Kosanke
  • D. Bernhardt
  • K. H. KÖhler
  • Birgit Voigt
Original Paper
Received:
Accepted:

Abstract

Changes in macromolecule syntheses, especially RNA synthesis, and the energy providing system were investigated in seeds ofAgrostemma githago aged for different periods. In embryos of aged seeds all macromolecule syntheses start later and reach a lower level than young ones. It was found that the synthesis of rRNA in embryos of aged seeds is reduced whereas the synthesis of poly (A+) RNA in relation to the total RNA synthesis is highly increased as well as the amount of this RNA species with long poly (A) chains. The results are discussed in connection with the decreased protein synthesis and the reduced ATP content and ATP formation ability in embryos during the long time storage of seeds.

Additional index words

ATP content ATP formation ability ageing 
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Copyright information

© Kluwer Academic Publishers 1990

Authors and Affiliations

  • R. Kosanke
    • 1
  • D. Bernhardt
    • 1
  • K. H. KÖhler
    • 1
  • Birgit Voigt
    • 1
  1. 1.Wissenschaftsbereich BotanikSektion Biologie der Ernst-Moritz-Arndt-UniversitätGreifswald 2200DDR

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