Eremococcus coleocola
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
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Phylum Firmicutes, Class Bacilli, Order Lactobacillales, Family Aerococcaceae, Genus Eremococcus, Eremococcus coleocola
Collins et al. 1999 - single species of the genus.
Gram-positive, ovoid cells occurring singly, in pairs or in short chains.
Colonies are pin-point, shiny, entire, circular, convex and non-corroding on blood agar
after 24 h. Alpha-haemolytic on horse- and sheep-blood agar. Facultatively anaerobic.
Growth does not occur at 10, but can grow at 42 ºC. Weak growth in broth containing
6.5 % NaCl and no growth occurs in 10% NaCl or in aesculin agar (Difco).
Isolated from the reproductive tract of horses (vaginal and clitoral fossa).
Undetermined.
  1. Matthew D. Collins,  Mar Rodriguez Jovita,  Paul A. Lawson,  Enevold Falsen, Geoffrey Foster. Characterization of a novel Gram-
    positive, catalase-negative coccus from horses: description of Eremococcus coleocola gen. nov. sp. nov. Int J Syst Evol Microbiol,
    October 1999 49: 1381-1385.
Description is based on API Rapid ID32S and API ZYM tests.

Positive results for arginine dihydrolase, hippurate hydrolysis, pyroglutamic acid
arylamidase, esterase C-4 (weak), ester lipase C-8 (weak), acid production from:
glucose (without gas) & N-acetylglucosamine (weak).

Negative results for acid phosphatase, alkaline phosphatase, aesculin hydrolysis, catalase, alpha-fucosidase, gelatin hydrolysis,
alpha- and beta-galactosidase, beta-galacturonidase, beta-glucosidase, beta-glucuronidase, glycine-tryptophanarylamidase, lipase
C 14, alpha- and beta-mannosidase, nitrate reduction, chymotrypsin, trypsin, oxidase, pyrazinamidase, starch hydrolysis,
alanine-phenylalanine-prolinearylamidase, leucine arylamidase, valine arylamidase, Voges-Proskauer reaction, acid production
from: L-arabinose, D-arabitol, cyclodextrin, glycogen, lactose, mannitol, maltose, methyl beta-D-glucopyranoside, melibiose,
melezitose, pullulan, D-raffinose, D-ribose, sorbitol, sucrose, tagatose, trehalose & D-xylose.

Variable results for urease activity.
(c) Costin Stoica
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