Unknown.
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Bacillota (Firmicutes), Class Bacilli, Order Lactobacillales, Family Streptococcaceae, Genus Streptococcus, Streptococcus
merionis Tappe et al. 2009. Lancefield group D (weak reaction).
Gram-positive cocci, nonmotile, nonsporeforming, grouped in long chains when
cultured in liquid media.
Colonies on 5% sheep blood Columbia agar are grey, non-haemolytic and 0.7-1.0
mm in diameter after 24 h incubation.Grows well on both Columbia sheep blood agar
and chocolate agar at 37 ºC in a 5% CO2 -enriched atmosphere. Growth at 45 ºC is
weak; growth does not occur at 10 ºC. No growth in 6.5% NaCl. Weak growth occurs
facultatively under anaerobic conditions.
Isolated from the oropharynges of Mongolian jirds (Meriones unguiculatus).
- Tappe D., Pukall R., Schumann P., Gronow S., Spiliotis M., Claus H., Brehm K. & Vogel U.: Streptococcus merionis sp. nov., isolated
from Mongolian jirds (Meriones unguiculatus). Int. J. Syst. Evol. Microbiol., 2009, 59, 766-770.
- Zaina Kadri, Mohamed Amar, Mouna Ouadghiri, Margo Cnockaert, Maarten Aerts, Omar El Farricha, Peter Vandamme.
Streptococcus moroccensis sp. nov. and Streptococcus rifensis sp. nov., isolated from raw camel milk. Int J Syst Evol Microbiol, July
2014 64: 2480-2485.
Positive for esculin hydrolysis, hippurate hydrolysis, leucine aminopeptidase,arginine dihydrolase, beta-glucuronidase, beta-
galactosidase, beta-glucosidase, beta-mannosidase and alanine-phenylalanineproline arylamidase, acid production from lactose,
trehalose, inulin, raffinose, starch, maltose, pullulan, and methyl beta-D-glucopyranoside.
Negative for catalase, oxidase, gelatinase, pyrrolidonyl arylamidase, alpha-galactosidase, alkaline phosphatase, urease, Voges–
Proskauer reaction, acid production from D-ribose, L-arabinose, D-mannitol, D-sorbitol, glycogen, D-xylose, inositol, D-rhamnose,
melibiose, and amygdalin.
(c) Costin Stoica