Abstract
By a series of quantitative assays of concentrates prepared in a variety of ways, it has been shown that the previously described growth factor now called "strepogenin," required by certain hemolytic streptococci, is very similar to and possibly identical with the recently described growth factors for Lactobacillus casei and Smith's Streptococcus lactis. An improved procedure for assay of strepogenin with the aid of Lactobacillus casei has been described, and additional properties of the growth factor have been presented.
Full Text
The Full Text of this article is available as a PDF (262.2 KB).
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Proceedings of the Biochemical Society. Biochem J. 1943 Oct;37(4):xvi–xix. [PMC free article] [PubMed] [Google Scholar]
- Smith F. R. Nutritional Studies on Streptococcus lactis: I. An Unidentified Growth Factor Found in Yeast Extract. J Bacteriol. 1943 Oct;46(4):369–371. doi: 10.1128/jb.46.4.369-371.1943. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Thompson R. C. The B-Vitamin Requirements of the Propionibacteria. J Bacteriol. 1943 Jul;46(1):99–104. doi: 10.1128/jb.46.1.99-104.1943. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Woolley D. W. A NEW GROWTH FACTOR REQUIRED BY CERTAIN HEMOLYTIC STREPTOCOCCI. J Exp Med. 1941 Mar 31;73(4):487–492. doi: 10.1084/jem.73.4.487. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Woolley D. W., Hutchings B. L. Synthetic Media for Culture of Certain Hemolytic Streptococci. J Bacteriol. 1940 Mar;39(3):287–296. doi: 10.1128/jb.39.3.287-296.1940. [DOI] [PMC free article] [PubMed] [Google Scholar]