Alternate Pathways of Glucose Metabolism in Azotobacter agilis.

Abstract
Fractions from A. agilis reduce tri-phosphopyridine nucleotide (TPN) in the presence of 6-phosphogluconate. This reduction is due largely, although perhaps not entirely, to oxidation of glyceraldehyde-3-phosphate formed by the splitting system described by Mortenson, et al. This organism possesses a TPN-linked triose-phosphate dehydrogenase, similar to that found in green leaves. The reduced TPN is reoxidized via the TPN-DPN transhydrogenase system.