| Streptococcus sinensis |
Positive results for arginine hydrolysis, esculin hydrolysis, beta-glucosidase, leucine
arylamidase, Voges-Proskauer reaction, acid production from: cellobiose, glucose,
lactose, mannose, maltose, pullulan, salicin, starch, sucrose & trehalose.
Negative results for alkaline phosphatase, catalase, hippurate hydrolysis, alpha- or beta-D-galactosidase, beta-D-glucuronidase,
lysine decarboxylase, beta-mannosidase, nitrate reduction, ornithine decarboxylase, pyrolidonylarylamidase, urease, acid production
from: arabinose, arabitol, cyclodextrin, glycogen, inulin, mannitol, melibiose, melezitose, ribose, raffinose, sorbitol, tagatose & xylose.
arylamidase, Voges-Proskauer reaction, acid production from: cellobiose, glucose,
lactose, mannose, maltose, pullulan, salicin, starch, sucrose & trehalose.
Negative results for alkaline phosphatase, catalase, hippurate hydrolysis, alpha- or beta-D-galactosidase, beta-D-glucuronidase,
lysine decarboxylase, beta-mannosidase, nitrate reduction, ornithine decarboxylase, pyrolidonylarylamidase, urease, acid production
from: arabinose, arabitol, cyclodextrin, glycogen, inulin, mannitol, melibiose, melezitose, ribose, raffinose, sorbitol, tagatose & xylose.
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Firmicutes, Class Bacilli, Order Lactobacillales, Family Streptococcaceae, Genus Streptococcus, Streptococcus sinensis Woo
et al. 2002.
Non-groupable with Lancefield groups A, B, C, D, F, and G antisera.
et al. 2002.
Non-groupable with Lancefield groups A, B, C, D, F, and G antisera.
Gram-positive cocci, 0.82-0.98 μm in diameter, occurring in chains. Nonmotile.
Produces alpha-hemolytic, gray colonies of 0.5-1 mm diameter on sheep blood agar.
Facultatively anaerobic. Growth is not enhanced in 5% CO2 atmosphere.
Growth occurs in 10 and 40% bile and on bile-esculin agar but not in 6% NaCl. Grows
at 37 ºC.
Facultatively anaerobic. Growth is not enhanced in 5% CO2 atmosphere.
Growth occurs in 10 and 40% bile and on bile-esculin agar but not in 6% NaCl. Grows
at 37 ºC.
Isolated from the blood culture of a patient with infective endocarditis. Resistant to optochin and bacitracin.
Unknown; may be a cause of endocarditis.
- Patrick C. Y. Woo, Dorothy M. W. Tam, Kit-Wah Leung, Susanna K. P. Lau, Jade L. L. Teng, Michelle K. M. Wong, and Kwok-Yung
Yuen. Streptococcus sinensis sp. nov., a Novel Species Isolated from a Patient with Infective Endocarditis. J. Clin. Microbiol. March
2002 40:3 805-810. - Robert A. Whiley and Jeremy M. Hardie, 2009. Genus I. Streptococcus Rosenbach 1884, 22AL. In: (Eds.) P.D. Vos, G. Garrity, D.
Jones, N.R. Krieg, W. Ludwig, F.A. Rainey, K.-H. Schleifer, W.B. Whitman. Bergey’s Manual of Systematic Bacteriology, Volume 3:
The Firmicutes, Springer, 655-711.
(c) Costin Stoica
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