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Biomedical subjects

R E DAVIS

Publications and source records attributed to R E DAVIS.

At least 37 records · Page 2Linked to original sources
PubMed1962

Lipid metabolism of rumen ciliates and bacteria. I. Uptake of fatty acids by Isotricha prostoma and Entodinium simplex.

Washed suspensions of the ruminal ciliates, Isotricha prostoma and Entodinium simplex, concentrated C(14)-labeled oleic, palmitic, stearic, and linoleic acids within the cells during short incubation periods. Radioautographs demonstrated that oleic acid-1-C(14) was hydrogenated to stearic acid by I. prostoma, and Warburg manometric data showed that the sodium salts of oleic, valeric, caproic, and acetic acids, and methyl myristate, methyl laurate, and the triglyceride tributyrin stimulated fermentation of I. prostoma. The total lipid and free fatty acid contents of I. prostoma were determined.

Animals↗
PubMed1961

Physiological studies of the rumen protozoan Ophryoscolex caudatus Eberlein.

The rumen ciliate Ophryoscolex caudatus fermented starch with the production of acetic, butyric, and lactic acids plus CO(2) and H(2). Cellulose was not significantly metabolized although pectin was rapidly attacked in the Warburg apparatus. The protein sources, cottonseed, soybean, and linseed oil meals, and the amino acids, dl-alanine, dl-valine, and dl-leucine, were utilized by the protozoan, whereas ammonia was demonstrated as an end product of nitrogenous metabolism. Methods for the separation of O. caudatus from mixed rumen contents are described.

Ammonia↗