�ber den Einflu� des Sauerstoffes auf die endogene Atmung gramnegativer Darmbakterien

Advances in the Study of Respiration-Deficient (Rd) Mutation in Yeast and Other Microorganisms1

“…The endogenous respiration rate of these bacteria, especially the last-named one, precultured anaerobically, increased during subsequent exposure to oxygen. The increase occurred without cell proliferation and was accompanied by changes in the absorption bands of cytochromes (47).…”

Effect of Glucose on the Formation of the Membrane-Bound Electron Transport System in Haemophilus parainfluenzae

“…In the group of organisms in which oxygen induces cytochrome formation, glucose exerts a marked repressive effect on the formation of cytochromes. Examples of organisms in which glucose repression is observed include the enteric bacteria (6,7,10,19), staphylococci (2, 23), and yeast (5). If H. parainfluenzae is typical of the class in which oxygen represses cytochrome formation, then glucose catabolism would have little effect on the formation of the cytochrome system.…”

“…If a concentration of 10-4 M glucose is maintained, it represses the synthesis of the respiratory pigments of the yeast mitochondria (R. L. Lester, personal communication). In Staphylococcus aureus (2, 23) or the enteric bacteria (7,10,19), the presence of glucose in the growth media reduces the specific activity of the respiratory pigments.…”