Johnson, John L. (Montana State College, Bozeman) and Kenneth L. Temple. Some asspects of methane oxidation. J. Bacteriol. 84:456-458. 1962.-A culture of Pseudomonas methanica (Methanomonas methanica) was isolated from a film of growth on the water layer in a methane storage bottle. This organism differed from Dworkin and Foster's strain in pH optimum, requirement for growth factors, sensitivity to oxygen and optimal oxygen level, and minor cultural features. Highly significant interactions were found for the concentrations of oxygen, methane, and carbon dioxide in growth experiments.