Energy State and Dinitrogen Fixation in Soybean Nodules of Dark-grown Plants
- 1 April 1975
- journal article
- Published by Oxford University Press (OUP) in Plant Physiology
- Vol. 55 (4) , 796-798
- https://doi.org/10.1104/pp.55.4.796
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.Keywords
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