The Labelling of the Carboxyl Carbon Atoms of Malate in Kalanchoë crenata Leaves

  • J. W. Bradbeer
  • W. Cockburn
  • S. L. Ranson
Conference paper

Abstract

Evidence is provided which establishes the correctness of the finding that, when malate was synthesized by darkened acidifying CAM leaves in the presence of 14CO2, the distribution of label between carbon atoms 4 and 1 of the malate approximated to a ratio of 2 : 1. This result was not an artefact of the degradation procedure as suggested by Sutton & Osmond (dy1972). As the explanation, that this distribution of label resulted from a double carboxylation process, has not found support from recent work in other laboratories, it would seem advisable to seek an alternative hypothesis.

Keywords

Barium Carbonate Helianthus Annuus Potassium Permanganate Solution Degradation Procedure Ribulose Diphosphate 
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References

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Copyright information

© Dr. W. Junk b.v., Publishers, The Hague 1975

Authors and Affiliations

  • J. W. Bradbeer
    • 1
  • W. Cockburn
    • 2
  • S. L. Ranson
    • 3
  1. 1.Department of Plant SciencesUniversity of London King’s CollegeEngland
  2. 2.Department of BotanyUniversity of LeicesterEngland
  3. 3.Department of Plant BiologyUniversity of NewcastleEngland

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