A note on the effects of oxygen on hydrogen production by the rumen protozoon Dasytricha ruminantium Schuberg |
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| Authors: | N Yarlett RI Scott AG Williams D Lloyd |
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| Institution: | Department of Microbiology, University College, Newport Road, Cardiff, CF2 1TA, Wales, UK and Department of Animal Nutrition and Production, Hannah Research Institute, Ayr, KA6 5HL |
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| Abstract: | Hydrogen production by the rumen protozoon, Dasytricha ruminantium was reversibly inhibited at O2 tensions < 2.8 μmol/1. At higher O2 concentrations irreversible inactivation of the hydrogenase system was observed. In the rumen, H2 generation is likely to be determined by O2 concentration since the physiological levels of O2 in the rumen are in the range 0–1.5 μmol/1. |
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