1887

Abstract

Spores of had low levels of respiratory activity partially sensitive to cyanide and salicylhydroxamic acid (SHAM). They contained a full set of cytochromes but in low concentrations, especially cytochromes . Aerobic growth induced a rapid increase in respiratory activity resistant to SHAM but fully sensitive to cyanide, and in the levels of cytochromes, mainly cytochromes . These processes were subject to catabolite repression. Incubation under anaerobic conditions, independent of cell morphology, favoured the persistence of SHAM-sensitive respiration, and the maintenance of low levels of and cytochromes. No cytochromes were formed under these conditions. CO-difference spectra suggested the presence of cytochrome in higher levels in aerobic than in anaerobic cells.

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1988-11-01
2024-05-01
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