Abstract
The cytochromed inStreptomyces griseus was studied by means of difference spectra measured under dithionite- or substrate-reduction.
Results indicated that the pigment 625 ofStreptomyces griseus is ad-type cytochrome. Its pyridine hemochrome showed the difference maximum at 613 nm. The difference maximum of the reduced cytochromed was shifted to the red by the addition of carbon monoxide or nitric oxide. Cytochromed apparently acts as one of the respiratory pigments under aerobic conditions.
The respiratory particle showed nitrite reductase activity at the acidic pH, and the substrate-reduced cytochromesb andd were oxidized in the presence of nitrite under anaerobic conditions.
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Inoue, Y. Presence of cytochromed in respiratory particles ofStreptomyces griseus and its function in the terminal oxidation system. Bot. Mag. Tokyo 89, 183–190 (1976). https://doi.org/10.1007/BF02488341
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DOI: https://doi.org/10.1007/BF02488341