TABLE 3.
Differential phenotypic characteristics of strain Nit1536T and closely related species of Nitratireductor genus, namely, N. aquibiodomus NL21T (DSM 15645) (Labbé et al., 2004) and N. kimnyeongensis Ky 101T (DSM 19185) (Kang et al., 2009).
| Characteristic | Nit1536T | NL21T | Ky 101T |
| Isolation source | Sediment of arid mangrove |
Marine denitrification system | Dried seaweed |
| Morphology | |||
| Cell shape | Short rods | Rods | Rods |
| Cell size (μm) | 0.9 × 0.4 | 2.5 × 1.0 | 1.8 × 0.4 |
| Pigment production | – | – | + |
| Physiology | |||
| Motility | – | + | + |
| Temperature (°C) range for growth | 15–45 | 20–40 | 20–40 |
| Temperature (°C) optimum | 37 | 30 | 30 |
| NaCl (%) range for growth | 1–14 | 1–7 | 0–7 |
| NaCl (%) optimum | 4 | 3 | 3 |
| pH range for growth | 6–10 | 6–10 | 6–12 |
| pH optimum | 8 | 7 | 8 |
| Genome * | |||
| DNA G + C content (mol%) | 63.9 | 57 | 60.4 |
| Enzymatic activity | |||
| Indole production | – | – | – |
| Nitrate reduction | – | + | + |
| Oxidase | + | + | + |
| Catalase | + | + | + |
| Amylase | – | – | – |
| Lipase | – | – | – |
Characteristics are scored as (+) present and (–) absent.
*Data obtained from published genome.