Metabolism of C4-dicarboxylates and amino acids in soybean nodule bacteroids, and their role in energy supply to nitrogenase
Overall carbon metabolism in nodules and bacteroids is already well reviewed (3,9,10), and it is accepted now that bacteroid respiration is mainly dependent on C4-dicarboxylate supplied from the host cells. The presence of a dicarboxylic acid carrier and absence of a tricarboxylic acid one on the bacteroid membrane suggests a unique nutrient condition surrounding the symbionts.
KeywordsAdenine Nucleotide Malic Enzyme Respiratory Substrate Incubation System Soybean Nodule
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