Table 1. Characteristics of Steroidobacter cummioxidans strain 35Y (35Y), Steroidobacter flavus CPCC 100154 (CPCC 100154), Steroidobacter agariperforans KA5-B (KA5-B), Steroidobacter denitrificansis DSM 18526 (DSM 18526).
| Characteristics | 35Y [12, 50, this study] | CPCC 100154 [52] | KA5-B [53] | DSM 18526 [54] |
|---|---|---|---|---|
| Flagellar arrangement | Motile by 1 (or 2) polar flagellum | Motile by single polar flagellum | Non-motile | Motile by single polar flagellum |
| Cell size width by length (μm) | 0.4–0.6 by 2.0–5.0 | 0.6–0.8 by 1.5–1.8 | 0.4–0.6 by 1.0–2.1 | 0.3–0.5 by 0.6–1.6 |
| Cell morphology | Rod | Rod | Straight to slightly curved rod | Slightly curved rods |
| Sporulation | - | - | - | - |
| Gram-stain | - | - | - | - |
| Oxidase | + | - | + | + |
| Catalase | - | + | + | + |
| Utilization as sole carbon source: | ||||
| D-fructose | + | - | + | - |
| D-maltose | + | - | + | - |
| Dextrin | + | - | + | - |
| D-galactose | + | - | + | + |
| D-rhamnose | ND | - | + | - |
| D-trehalose | + | + | - | - |
| D-turanose | + | - | + | - |
| Tween 40 | + | - | + | - |
| α-D-lactose | + | - | + | - |
| Hydrolysis of: | ||||
| Casein | + | - | ND | ND |
| Gelatine | - | - | ND | ND |
| Starch | + | - | + | ND |
| Anaerobic growth | - | ND | - | + |
| Nitrate reduction | - | ND | ND | + |
| Growth on complex media | + | ND | ND | - |
| Utilization of agar as a C-source | - | ND | + | - |
| Temperature range for growth (°C) | 25–41 | 20–37 | 15–37 | 20–38 |
| DNA G+C content (mol %) | 60.94 | 64.4 | 62.9 | 61.9 |
| 16S rRNA gene identity (%) | 100 | 98.28 | 98.2 | 97.59 |
| Genome Size (Mbp) | 7.9 | ND | ND | 3.5 |
| Xanthomonadin pigment | + C27H28Br2O2 [47] |
ND | ND | ND |
| Xanthomonadin biosynthetic gene cluster [55] | A cluster of 14 genes | ND | ND | Only 4 genes* |
ND: not determined or not available; +: positive; -: negative.
* Details are given in S1 Text.