Streptococcus troglodytidis
Results are based on RapID 32 Strep and API 20 Strep identification kits.

Positive results for arginine hydrolysis, alkaline phosphatase, esculin hydrolysis, beta-glucosidase, Voges-Proskauer test, acid
production from: inulin, lactose, maltose and trehalose.

Negative results for N-acetyl-beta-glucosaminidase, catalase, hippurate hydrolysis, alpha-galactosidase, beta-galactosidase,
beta-glucuronidase, alpha-glucosidase, indole production,  leucine aminopeptidase, pyrolidonyl arylamidase, oxidase, urease, acid
production from: arabinose, glycogen, mannitol, melibiose, melezitose, raffinose, ribose, sorbitol and starch.
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Bacillota (Firmicutes), Class Bacilli, Order Lactobacillales, Family Streptococcaceae, Genus Streptococcus, Streptococcus
troglodytidis
Zhang et al. 2013.
Reacts with Lancefield group B antisera.
Gram-positive cocci, 0.5-1.0 μm in diameter grouped in pairs and short chains. Non-
spore-forming. Non-motile.
Colonies on blood agar are small (0.5-1.0 mm), opaque, convex and entire with a
large zone of complete haemolysis after 48 h incubation at 37 ºC. Facultatively
anaerobic. Requires 5-10% CO
2 for optimal growth.
Isolated from a foot abscess of a chimpanzee (Pan troglodytes).
Isolated from a foot abscess of a chimpanzee.
  1. Michael Zhang, Lifang Yan, Guan Zhu, Michael Holifield, Donna Todd, Shuping Zhang. Streptococcus troglodytidis sp. nov.,
    isolated from a foot abscess of a chimpanzee (Pan troglodytes). Int J Syst Evol Microbiol, February 2013 63: 449-453.
(c) Costin Stoica
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