TABLE 1.
Selected characteristics of strain HE8 and the species of the genus Slackiaa
| Characteristic | Strain HE8 | S. faecicanis | S. exigua | S. heliotrinireducens |
|---|---|---|---|---|
| Source | Human feces | Dog feces | Human oral lesions | Sheep rumen |
| Cell shape | Rods | Rods | Rods | Cocci |
| Gram stain | + | + | + | + |
| G+C content of DNA (mol%) | 58.5 | 61.2 | 60-64 | 61.0 |
| 16S rRNA identity to strain HE8 (1,339 bp) (%) | − | 90.9 | 91.4 | 90.6 |
| DNA-DNA homology to strain HE8 (%) | − | 28.8 ± 5.0 | 17.8 ± 0.8 | 21.6 ± 4.2 |
| Daidzein conversion | + | − | + | − |
| Equol formation from daidzein | + | − | − | − |
| Genistein conversion | + | − | + | − |
| 5-Hydroxy-equol formation from genistein | + | − | − | − |
| Arginine dihydrolase | + | + | + | + |
| Alkaline phosphatase | − | − | − | − |
| Acid phosphatase | + | + | + | − |
| Arginine arylamidase | − | − | + | + |
| Proline arylamidase | − | − | + | + |
| Leucyl glycine arylamidase | − | − | wb | + |
| Phenylalanine arylamidase | − | − | + | + |
| Leucine arylamidase | − | − | + | + |
| Tyrosine arylamidase | − | − | + | + |
| Alanine arylamidase | − | − | + | + |
| Glycine arylamidase | − | − | + | + |
| Histidine arylamidase | − | − | + | + |
| Serine arylamidase | − | − | + | + |
| Valine arylamidase | − | − | + | + |
| Cystine arylamidase | − | − | w | − |
| Esterase (C4) | + | + | + | + |
| Esterase lipase (C8) | + | w | + | w |
| Naphthol-AS-BI-phosphohydrolase | + | w | + | − |