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. 1969 Nov;100(2):890-4.
doi: 10.1128/jb.100.2.890-894.1969.

Reductive pentose cycle and formate assimilation in Rhodopseudomonas palustris

J E Stokes, D S Hoare

Reductive pentose cycle and formate assimilation in Rhodopseudomonas palustris

J E Stokes et al. J Bacteriol. 1969 Nov.

Abstract

Rhodopseudomonas palustris assimilated formate autotrophically as carbon dioxide and hydrogen arising from the activity of the formic hydrogenlyase system. Kinetic analyses of cell suspensions pulse-labeled with (14)C-formate or (14)C-bicarbonate showed similar distributions of incorporated radioactivity. In both cases phosphate esters were the first assimilation products. Ribulose diphosphate carboxylase, phosphoribose isomerase, and phosphoribulokinase, characteristic enzymes of the reductive pentose cycle, were present in extracts of cells grown on formate.

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