Utilization of carbohydrates and amino acids by Micrococcus radiodurans

Autor: Arthur W. Anderson, Paul R. Elliker, Anne M. Deeney, Chih H. Wang, Frances L. Duryee, Harkison D. Raj
Rok vydání: 1960
Předmět:
Zdroj: Canadian journal of microbiology. 6
ISSN: 0008-4166
Popis: The nutrition and metabolism of a recently isolated Micrococcus species resistant to closes of gamma radiation as high as 6 × 106 r.e.p. were studied by manometric and radioactive tracer techniques. Methionine, the only amino acid shown to be essential in a chemically defined medium, appears to be rapidly incorporated into the cells. DL-Glutamic acid is readily metabolized, the D isomer apparently after an initial lag. Among the simple carbohydrates, fructose, glucose, and glycerol are readily utilized. The operation of the tricarboxylic acid cycle is suggested by the oxidation of certain TCA intermediates. The prompt conversion of C-1 of gluconate to CO2, in the presence of glucose, may indicate that a C1–C5 cleavage pathway is operative for catabolism of glucose in this organism.
Databáze: OpenAIRE