SUPPLEMENTARY GROWTH PROMOTING EFFECT OF 2-METHYL-1,4-NAPHTHOQUINONE ON LACTOBACILLUS BIFIDUS VAR. PENNSYLVANICUS
- 1 February 1959
- journal article
- research article
- Published by American Society for Microbiology in Journal of Bacteriology
- Vol. 77 (2) , 230-236
- https://doi.org/10.1128/jb.77.2.230-236.1959
Abstract
L. bifidus var. pennsylvanicus, a mutant requiring N-acetyl-D-glucosamine -containing saccharides for growth, gives 100-200% increased growth with 2-methyl-l,4-naphthoquinon in concentrations of 0.001 [mu]g/ml of medium, in the presence of lower levels of the essential growth factor. Of the compounds examined, this supplementary growth effect was limited to menadione, vitamin K1, K5, Synkayvite and 1,4-naphth-oquione.Keywords
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