THE VITAMIN REQUIREMENTS FOR GLYCEROL OXIDATION BY STREPTOCOCCUS FAECALIS

The vitamin requirements for glycerol oxidation by Streptococcus faecalis.

Gunsalus and Sherman (1943) have shown that oxygen is necessary for glycerol fermentation for the majority of the lactic acid bacteria. These organisms, though considered devoid of those iron enzymes usually necessary when oxygen is involved as a hydrogen acceptor, could aerobically utilize glycerol. Because of the anomaly of these observations Gunsalus and Umbreit (1945) studied the mechanism ...

Diacetyl oxidation by Streptococcus faecalis, a lipoic acid dependent reaction.

In the over-all reaction, one molecule of diacetyl is oxidized to two molecules of acetate, and another molecule of diacetyl is reduced to acetoin. The reaction was shown to require cocarboxylase (DPT).2 Subsequently, Schweet et al. (1951) expanded this finding and pointed out the similarity between the diacetyl reaction and pyruvic acid oxidation, with respect to the metabolism of the "active ...

The response of Lactobacillus casei and Streptococcus faecalis to vitamin Bc and vitamin Bc conjugate.

Our earlier attempts to assay natural products, such as extracts of yeast and liver, for uncombined vitamin B, by the Lactobacillus casei method recently described (1) led to inconsistent results. The potency values calculated for individual assay tubes increased markedly with each increase in amount of assay material added. When the turbidity readings for tubes containing these natural product...

The oxidation of glycerol by Mycobacteria.

2-ketogluconate Fermentation by Streptococcus Faecalis.

Goddard, J. L. (University of Oklahoma School of Medicine, Oklahoma City), and J. R. Sokatch. 2-Ketogluconate fermentation by Streptococcus faecalis. J. Bacteriol. 87:844-851. 1964.-Streptococcus faecalis 10Cl did not grow with 2-ketogluconate alone as an energy source, but did grow when gluconate was added. More growth was obtained than could be accounted for by the gluconate alone. The requir...