Abstract
Stomatococcus mucilaginosus was isolated from the blood of a patient with endocarditis and a past history of drug abuse and aortic valve replacement. At autopsy, Gram stain of the aortic valve revealed gram-positive cocci. Our isolate was atypical for S. mucilaginosus in that colonies were nonmucoid and nonadherent to agar surfaces. Cellular capsules were demonstrated by light and electron microscopy. Phenotypic characteristics identified by conventional methods as well as profile numbers obtained by using two commercial identification systems for staphylococci, the API Staph-Ident and the dms Staph Trac, are presented. Practical tests that differentiate S. mucilaginosus from the genera Micrococcus and Staphylococcus include growth on nutrient agar containing salt and lysostaphin susceptibility. Additional tests that helped differentiate our isolate from group D streptococci included hydrolysis of L-pyrrolidonyl-beta-naphthylamide and streptococcal serogrouping.
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- Baldellon C., Mégraud F. Stomatococcus mucilaginosus: caractères culturaux et biochimiques de 100 souches isolées de la sphère ORL. Ann Inst Pasteur Microbiol. 1985 Mar-Apr;136A(2):213–226. doi: 10.1016/s0769-2609(85)80060-0. [DOI] [PubMed] [Google Scholar]
- Bergan T., Bovre K., Hovig B. Reisolation of Micrococcus mucilaginosus Migula 1900. Acta Pathol Microbiol Scand B Microbiol Immunol. 1970;78(1):85–97. doi: 10.1111/j.1699-0463.1970.tb04272.x. [DOI] [PubMed] [Google Scholar]
- Gordon D. F., Jr Reisolation of Staphylococcus salivarius from the human oral cavity. J Bacteriol. 1967 Nov;94(5):1281–1286. doi: 10.1128/jb.94.5.1281-1286.1967. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Prag J., Kjøller E., Espersen F. Stomatococcus mucilaginosus endocarditis. Eur J Clin Microbiol. 1985 Aug;4(4):422–424. doi: 10.1007/BF02148699. [DOI] [PubMed] [Google Scholar]
- Rubin S. J., Lyons R. W., Murcia A. J. Endocarditis associated with cardiac catheterization due to a Gram-positive coccus designated Micrococcus mucilaginosus incertae sedis. J Clin Microbiol. 1978 Jun;7(6):546–549. doi: 10.1128/jcm.7.6.546-549.1978. [DOI] [PMC free article] [PubMed] [Google Scholar]
- WELSHIMER H. J. The action of lysozyme on the cell wall and capsule of Bacillus megatherium. J Bacteriol. 1953 Jul;66(1):112–117. doi: 10.1128/jb.66.1.112-117.1953. [DOI] [PMC free article] [PubMed] [Google Scholar]