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. 1975 Apr;55(4):796-8.
doi: 10.1104/pp.55.4.796.

Energy State and Dinitrogen Fixation in Soybean Nodules of Dark-grown Plants

T M Ching  1 , S Hedtke, S A Russell, H J Evans
Affiliations

Energy State and Dinitrogen Fixation in Soybean Nodules of Dark-grown Plants

T M Ching et al. Plant Physiol. 1975 Apr.

Abstract

Dark treatment of 25-day-old greenhouse-grown plants of inoculated soybean (Glycine max var. Chippewa) for 1 day reduced ATP by 70%, sucrose by 60%, total adenosine phosphates by 60%, ATP/ADP ratio by 55%, nitrogenase activity by 50%, and energy charge by 15% in nodules. The close correlation between nitrogenase activity and these energy parameters indicates that they may play a major role in regulating dinitrogen fixation in the symbiotic system.

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