Biochemistry of Nitrate Respiration in Pseudomonas stutzeri I. Aerobic and Nitrate Respiration Routes of Carbohydrate Catabolism

AUTOR(ES)

Spangler, W. J.

RESUMO

Spangler, W. J. (Oregon State University, Corvallis), and C. M. Gilmour. Biochemistry of nitrate respiration in Pseudomonas stutzeri. I. Aerobic and nitrate respiration routes of carbohydrate catabolism. J. Bacteriol. 91:245–250. 1966.—The metabolic pathways of glucose catabolism were studied in Pseudomonas stutzeri under aerobic conditions and under conditions of nitrate respiration. Studies on both glucose and gluconate catabolism, by the radiorespirometric method, indicated that these substrates are degraded in the same manner, i.e., the Entner-Doudoroff and pentose phosphate pathways. There appeared to be no major shift in primary metabolic pathways when nitrate was used as the terminal hydrogen acceptor in nitrate respiration as opposed to aerobic respiration with free molecular oxygen. It was shown that glucose is not degraded to any appreciable extent under anaerobic conditions in the absence of nitrate. Tentative evidence suggests that the tricarboxylic acid cycle functions under both conditions of oxygen relationships and that the rate of carbon oxidation via the tricarboxylic acid cycle is slower with nitrate respiration than under aerobic conditions.

Documentos Relacionados

• METABOLISM OF SARCINA LUTEA I. : Carbohydrate Oxidation and Terminal Respiration
• Soil and sediment bacteria capable of aerobic nitrate respiration.
• Kinetics of nirS Expression (Cytochrome cd1 Nitrite Reductase) in Pseudomonas stutzeri during the Transition from Aerobic Respiration to Denitrification: Evidence for a Denitrification-Specific Nitrate- and Nitrite-Responsive Regulatory System
• Cloning of genes specifying carbohydrate catabolism in Pseudomonas aeruginosa and Pseudomonas putida.
• Carbohydrate Catabolism of Mima polymorpha I. Supplemental Energy from Glucose Added to a Growth Medium