TABLE 1.
Phenotypic characteristics of catalase-negative, gram-positive cocci
| Genus table | Phenotypic characteristicsa
|
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Gram stainb | Van | GAS | PYR | LAP | NaCl | 10°C | 45°C | Mot | Hem | |
| Leuconostocc | ch | R | + | − | − | v | + | + | − | α/γ |
| Weisellac | ch | R | + | − | − | + | v | v | − | α/γ |
| Enterococcus | ch | S/R | − | + | + | + | + | + | v | α/γ |
| Lactococcus | ch | S | − | + | + | v | + | v | − | α/γ |
| Vagococcus | ch | S | − | + | + | + | + | − | + | α/γ |
| Streptococcus | ch | S | − | − | + | v | − | v | − | α/β/γ |
| Abiotrophia | ch | S | − | + | + | − | − | v | − | α/γ |
| Globicatella | ch | S | − | + | − | + | − | − | − | α |
| Dolosicoccus | ch | S | − | + | − | − | − | − | − | α |
| Pediococcus | cl/t | R | − | − | + | v | − | + | − | α |
| Tetragenococcus | cl/t | S | − | − | + | + | − | + | − | α |
| Aerococcus urinaed | cl/t | S | − | − | + | + | − | − | − | α |
| Aerococcus viridans | cl/t | S | − | + | − | + | − | − | − | α |
| Helcococcus | cl/t | S | − | + | − | + | − | − | − | γ |
| Gemella | cl/t/ch | S | − | + | v | − | − | − | − | α/γ |
| Facklamia | cl/ch | S | − | + | + | + | − | − | − | γ |
| Alloiococcus | cl/t | S | − | + | + | + | − | − | − | γ |
| Ignavigranum | cl/ch | S | − | + | + | + | − | − | − | γ |
| Dolosigranulum | cl/t | S | − | + | + | + | − | − | − | γ |
a
Van, vancomycin sensitivity screening test; GAS, gas production in MRS broth; PYR, production of PYRase; LAP, production of LAPase; NaCl, growth in broth containing 6.5% NaCl; 10°C and 45°C, growth at 10 and 45°C; Mot, motile; Hem, hemolytic activity on Trypticase soy 5% sheep blood agar. v, variable; S, susceptible; R, resistant.
b
Cell arrangement in Gram strain: cl, clusters; t, tetrads; ch, chains.
c
Leuconostoc and Weisella are often coccobacillary, sometimes appearing rod-like in chains.
d
Aerococcus christensenii has the same phenotypic characteristics as A. urinae.