Distribution of cytochromes in methanogenic bacteria

Abstract

Various methanogenic bacteria belonging to the orders Methanobacteriales, Methanococcales, and Methanomicrobiales were examined for the presence of cytochromes. Those methanogens which are capable of growing only on H2 + CO2 or formate were found to lack cytochromes. However, membrane-bound cytochromes were detected in species able to utilize methanol, methylamines or acetate. © 1983.