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The role of dark carbon dioxide fixation in root nodules of soybean



The role of dark carbon dioxide fixation in root nodules of soybean



Plant Physiology 81(1): 200-205



Nodules of intact soyabean plants fixed 14CO2 in the dark at an estimated rate of 102 micro mol/g DW h, which was equivalent to 14% of net nodule respiration. Within 1 h, 75-92% of the fixed label was released as CO2. The labelling pattern during pulse chase experiments was consistent with CO2 fixation by phosphoenolpyruvate carboxylase. During the chase, the greatest loss of label was in organic acids.

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Accession: 001493312

Download citation: RISBibTeXText

PMID: 16664774

DOI: 10.1104/pp.81.1.200


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