TABLE 1.
Phenotypic characteristic or relevant factor |
G. sanguinis |
G. sulfidifaciens |
|||||
---|---|---|---|---|---|---|---|
Isolate(s) from previous study by: |
HDP50220b | HDP60616b | Isolates from previous study by Vandamme et al. (11) | HDP60617b | |||
Collins et al. (2) | Shewmaker et al. (8) | Seegmuller et al. (6) | |||||
Hippurate hydrolysis | + | + | + | + | + | − | ± |
H2S production | − | ND | − | − | − | + | − |
Production of: | |||||||
Pyrrolidonyl-arylamidase | + | V | + | + | + | − | + |
β-Glucuronidase | − | − | + | − | − | + | − |
β-Galactosidase | + | + | − | + | + | − | + |
N-Acetyl-β-glucosaminidase | + | − | + | − | − | − | − |
Acidification of: | |||||||
Inulin | − | + | ND | + | + | + | + |
Ribose | + | V | + | + | + | − | − |
Mannitol | + | + | + | + | + | − | + |
No. of strains examined | Type strain and 8 others | 28c | 1 | 1 | 1 | Type strain and 3 others | 1 |
Host(s) | Humans | Humans | Human | Human | Human | Animals | Human |
Clinical context | Bacteremia | Meningitis and bacteremia | Meningitis | Meningitis | Carriage | Bacteremia | Carriage |
Specimen(s) of origin | Blood | CSF, blood | CSF | CSF | Groin specimen | Blood | Rectal specimen |
Isolates were compared to those described in previous reports (2, 6, 8, 11). +, 85% or more of the strains tested positive for the indicated characteristic; −, 15% or less of the strains tested positive; V, 16 to 84% of the strains tested positive; ±, strain tested positive with the API 20 Strep system and negative with the rapid ID 32 Strep system; ND, not determined.
HDP50220, HDP60616, and HDP60617 strains presented the common characteristics of Globicatella spp. They grew in 6.5% NaCl brain heart infusion broth. They hydrolyzed esculin and produced pyrrolidonyl-arylamidase; they gave negative results in the leucine aminopeptidase, bile-esculin, urease, and Voges-Proskauer tests. No reaction of the Lancefield extracts with group A, B, C, D, F, or G antisera (from the Prolex streptococcal grouping latex kit; Pro-Lab, Strasbourg, France) was observed.
Including the 9 strains from the study by Collins et al. (2).