Photosynthesis in a marine diatom

Andrew M. Johnston (), John A. Raven, John Beardall and Richard C. Leegood
Additional contact information
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

Nature, 2001, vol. 412, issue 6842, 40-41

Abstract: 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.

Date: 2001
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DOI: 10.1038/35083694

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