This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Reprints and Permissions Copyright Information Books from ASM Press MicrobeWorld Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Yoshida, K. Articles by Ekstedt, R. D. Search for Related Content PubMed PubMed Citation Articles by Yoshida, K. Articles by Ekstedt, R. D.

 Previous Article  |  Next Article 

J Bacteriol. 1968 October; 96(4): 902-908
Copyright © 1968 American Society for Microbiology. All Rights Reserved.

Relation of Mucoid Growth of Staphylococcus aureus to Clumping Factor Reaction, Morphology in Serum-Soft Agar, and Virulence

^a Department of Microbiology, Northwestern University Medical School, Chicago, Illinois 60611

ABSTRACT

The growth characteristics of several strains of Staphylococcus aureus in Brain Heart Infusion and in a modified Staphylococcus Medium No. 110 were compared. In the latter medium all of the strains studied showed an increased mucoid character. Some of the strains studied showed a greater potential to synthesize excess slime layer material than others. The highly mucoid strains grew as diffuse-type colonies in modified Staphylococcus Medium No. 110 serum-soft agar and reacted as though they were negative in the test for clumping factor. These strains were also found to be more virulent when used to challenge normal mice intraperitoneally.

¹ Present address: Department of Bacteriology, Nippon Medical School, Bunkyo-Ku, Tokyo, Japan.