Mycoside G, a Specific Glycolipid in Mycobacterium marinum (Balnei).

Navalkar, R. G. (University of Wisconsin, Madison), E. Wiegeshaus, E. Kondo, H. K. Kim, and D. W. Smith. Mycoside G, a specific glycolipid in Mycobacterium marinum (Balnei). J. Bacteriol. 90:262-265. 1965.-A new specific glycolipid in extracts prepared from strains designated Mycobacterium marinum and M. balnei has been demonstrated by use of the techniques of column chromatography and infrared spectroscopy. Since there is now agreement among many workers that M. marinum and M. balnei are identical, the demonstration of the same specific glycolipid in both species is not surprising. This substance, which we have designated mycoside G, is chemically similar to mycosides A and B, and apparently differs only in the sugar moiety. In addition, the lipids extracted from these cultures contain phthiocerol dimycocerosate, a wax component found also in M. tuberculosis and M. bovis.     

16α-Hydroxy Steroids: XI. 2β- and 16α-Hydroxylation of 9α-Fluorohydrocortisone by Strains of Streptomyces roseochromogenes

9α-Fluorohydrocortisone is hydroxylated by Streptomyces roseochromogenes in the 16α-, the 2β-, and in both the 16α- and 2β- positions. 16α-Hydroxylation appears to be the more predominant and rapid pathway of transformation. The degree of 2β-hydroxylation is dependent upon the strain used and may be increased to the point of its being a major route or virtually eliminated by the proper selection of isolates.