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Photosynthesis in a marine diatom

Author

Listed:
  • Andrew M. Johnston

    (Scottish Crop Research Institute)

  • John A. Raven

    (Biological Sciences Institute, University of Dundee)

  • John Beardall

    (Monash University)

  • Richard C. Leegood

    (University of Sheffield)

Abstract

The first stable product of photosynthetic carbon fixation by land plants is either the three-carbon molecule phosphoglycerate (in C3 plants) or the four-carbon compounds malate or aspartate (in C4 and CAM (crassulacean-acid metabolism) plants). Reinfelder et al. infer that a C4 biochemical pathway of carbon fixation also operates in marine diatoms1,2 on the basis of their discovery of the enzyme phosphoenolpyruvate (PEP) carboxylase and of their 14C-tracer results in the marine diatom Thalassiosira weissflogii. However, we consider that further analysis is called for to demonstrate that this marine diatom meets all the criteria for C4 photosynthesis.

Suggested Citation

  • Andrew M. Johnston & John A. Raven & John Beardall & Richard C. Leegood, 2001. "Photosynthesis in a marine diatom," Nature, Nature, vol. 412(6842), pages 40-41, July.
    • Handle: RePEc:nat:nature:v:412:y:2001:i:6842:d:10.1038_35083694
    DOI: 10.1038/35083694
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