sulphate-reducing bacteria and sulphur-reducing bacteria

sulphate-reducing bacteria and sulphur-reducing bacteria

anaerobic BACTERIA that use sulphates or elemental sulphur rather than OXYGEN as the electron acceptor (see ELECTRON TRANSPORT SYSTEM). Such REDUCTIONS result in the production of hydrogen sulphide (H2S) which is an essential part of the SULPHUR CYCLE. These bacteria are found in muds and sediments and in the INTESTINE of humans and other animals.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005