TABLE 3.
Representative misclassifications by conventional methods
| Group | Identification (no. of isolates) by:
|
|
|---|---|---|
| Conventional methods | 16S rRNA gene sequencing | |
| Gram-positive isolates | Clostridium clostridioforme (3) | Clostridium boltae (2), Clostridium hathewayi (1) |
| Clostridium perfringens (2) | Clostridium baratii (1), Clostridium bifermentans (1) | |
| Peptostreptococcus sp. (2) | Veillonella parvula (1), Veillonella sp. (1) | |
| Gram-negative isolates | Parabacteroides distasonis (2) | Bacteroides fragilis (1), Parabacteroides merdae (1) |
| Bacteroides theta/ovatus group (7) | Novel Bacteroides sp. (3), Bacteroides caccae (1), Bacteroides intestinalis (1), Bacteroides uniformis (1), Clostridium hathewayi (1) | |
| Bacteroides uniformis (3) | Bacteroides intestinalis (2), Bacteroides ovatus (2) | |
| Bacteroides vulgatus (8) | Bacteroides caccae (1), Bacteroides dorei (4), Bacteroides finegoldii (1), Bacteroides fragilis (1), Eggerthella lenta (1) | |
| Fusobacterium sp. (3) | Clostridium symbiosum (2), Alistipes finegoldii (1) | |