Streptococcus pseudoporcinus
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Firmicutes, Class Bacilli, Order Lactobacillales, Family Streptococcaceae, Genus Streptococcus, Streptococcus
pseudoporcinus
Bekal et al. 2007.

Does not react with Lancefield group A, B, C, D, F, or G antisera.
Gram-positive, spherical to oval cocci, grouped in short chains.
Colonies on blood agar are small and smooth, with entire margins, and hemolytic,
showing a large zone of complete hemolysis. There is slight to normal growth at 10
ºC, but mostly no growth at 45 ºC, in 7 days. Grows in 6.5% NaCl broth in 24 to 48 h.
No extracellular polysaccharide is produced.
Isolated from the female genitourinary tract. Susceptible to vancomycin (30 ug/disk).
Uncertain pathogenicity to other animals or to humans - although was isolated from genitourinary tract of  female patients, some with
delivery problems.
  1. Sadjia Bekal, Christiane Gaudreau, Robert A. Laurence, Esther Simoneau, and Lelia Raynal. Streptococcus pseudoporcinus sp.
    nov., a Novel Species Isolated from the Genitourinary Tract of Women. J. Clin. Microbiol., 2006, 44, 2584-2586.
Fermentative metabolism. Biochemically very close to S. porcinus.

Positive results for arginine hydrolysis, aesculin hydrolysis, leucine aminopeptidase, acid production from: glucose, glycerol, maltose,
mannitol, ribose, salicin, sorbitol, sucrose & trehalose.

Negative results for catalase, hippurate hydrolysis, starch hydrolysis, urea hydrolysis, acid production from:  lactose & melibiose.

Variable results for Voges-Proskauer reaction
(c) Costin Stoica
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