@article{mbs:/content/journal/micro/10.1099/00221287-119-2-485, author = "Henderson, C.", title = "The Influence of Extracellular Hydrogen on the Metabolism of Bacteroides ruminicola, Anaerovibrio lipolytica and Selenomonas ruminantium", journal= "Microbiology", year = "1980", volume = "119", number = "2", pages = "485-491", doi = "https://doi.org/10.1099/00221287-119-2-485", url = "https://www.microbiologyresearch.org/content/journal/micro/10.1099/00221287-119-2-485", publisher = "Microbiology Society", issn = "1465-2080", type = "Journal Article", abstract = "Strains of three anaerobic rumen bacteria, Bacteroides ruminicola, Anaerovibrio lipolytica and Selenomonas ruminantium, were able to use extracellular H2 to reduce fumarate to succinate. Each bacterium possessed membrane-bound hydrogenase and fumarate reductase activity. Membrane-bound cytochrome b was reducible by H2 and oxidizable by fumarate in each bacterium. The apparent K m values for hydrogen of the hydrogenases were 4.5 10−6 m, 1.4 10−5 m and 4.4 10−5 m for B. ruminicola, A. lipolytica and S. ruminantium, respectively. The apparent K m values for fumarate of the fumarate reductases were approximately 1.0 10−4 m for each bacterium.", }