d-Pentose metabolism byBacteroides vulgatus strain 8482
1987
Bacteroides vulgatus strain 8482 metabolizedd-arabinose by a mechanism involving a 3∶2 (top to bottom) cleavage of the arabinose carbon skeleton. During growth in the presence of 1-14C-d-arabinose, acetate, propionate, and succinate were labeled, but during growth in the presence of 5-labeledd-arabinose, only labeled acetate and succinate were formed. The metabolism ofd-ribose by strain 8482 differed from that ford-arabinose. Strain 8482 converted glycolic acid and glycine to acetate and succinate, but not propionate, by a mechanism involving cleavage of the glycine and glycolic acid carbon skeletons and equilibration of carbons 1 and 2 of glycolic acid and glycine with nonequivalent metabolic pools. The metabolism ofd-arabinose,d-ribose,d-glycine, andd-glycolic acid by strain 8482 was similar, in some respects, to that ofBacteroides fragilis strain 2044, but differed substantially from the metabolism of the same substances byBacteroides ruminicola strain B14.
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