Affiliation:
1. Department of Biochemistry, Louisiana State University, School of Medicine, New Orleans, Louisiana
Abstract
Bragg, P. D.
(Louisiana State University, New Orleans)
and R. E. Reeves
. Studies on the carbohydrate metabolism of a gram-negative anaerobe (
Bacteroides symbiosus
) used in the culture of
Entamoeba histolytica
. J. Bacteriol.
83:
76–84. 1962—Resting cells of
Bacteroides symbiosus
have been shown to utilize glucose and several other monosaccharides. The fermentation of the sugars is mediated by demonstrable kinases except in the case of mannitol. The main end products of metabolism of glucose are CO
2
, H
2
, ethanol, and acetic, butyric, succinic, and lactic acids. Changes in the thiol used in the growth media produce different enzyme complements in the cells. Thus, cells grown with cysteine as the thiol are unable to metabolize glucosamine, whereas those grown with thiomalate rapidly degrade the amino sugar. The results of the enzyme assay and the results from experiments with C
14
-labelled glucose suggest that glucose is metabolized by resting cells mainly by the Embden-Myerhof pathway.
Publisher
American Society for Microbiology
Subject
Molecular Biology,Microbiology
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