Table 3.
The differential phenotypic characteristics of the strain Cnaph3 and other related strains of the genus Halomonas
| Characteristics | Strain Cnaph3 | Halomonas pacifica DSM 7474T (Baumann et al. 1983) | Halomonas salifodinae JCM 14803T (Wang et al. 2008) | Halomonas elongata ATCC33173T (Vreeland et al. 1980) | Halomonas eurihalina ATCC 49336T (Quesada et al. 1990) |
|---|---|---|---|---|---|
| 16S RNA similarity (%) | 100 | 98.7 | 98.4 | 94.5 | 93.5 |
| Colony pigmentation | Cream | Cream | Brown-yellow | White | Cream |
| Morphology | Rods | Rods | Long rods | Rods | Rods |
| Cell size (μm) | 0.5–0.7*1.5–2.0 | 0.6–0.8*1.6–1.9 | 0.8–1.2*4.0–6.0 | nd | 0.8–1.0*2.0–2.5 |
| Motility | + | + | + | + | + |
| Gram stain | − | − | − | − | − |
| Oxidase | + | + | + | + | − |
| Catalase | + | + | + | + | nd |
| Growth NaCl range (%, w/v) | 0–20 | 0–20 | 0.5–20 | 0–20 | 0.5–25 |
| Optimum NaCl (%, w/v) | 3 | 0.5–3 | 3 | 3–8 | 7.5 |
| Growth temperature range (°C) | 30–45 | 4–45 | 4–48 | 4–45 | 4–45 |
| Optimum temperature (°C) | 37 | 27 | 30 | 30 | 32 |
| Growth pH range | 6.5–10 | 5–10 | 6–9 | 5–10 | 5–10 |
| Optimum pH | 7 | nd | 7 | 7.5 | 7.2 |
| Growth on | |||||
| l-Arabinose | − | − | − | + | − |
| d-Galactose | nd | + | nd | − | − |
| d-Glucose | + | + | + | + | − |
| Maltose | − | − | + | + | − |
| d-Mannitol | + | + | + | + | − |
| d-Mannose | + | + | nd | − | − |
| Origin | Seawater taken from the Ataya’s fishing harbor, Kerkennah islands, Tunisia | Seawater, Hawaii | Saline soil sample collected from a salt mine at Baichengin Xinjiang Province, China | Solarsalt Co. facility located on Bonaire, Netherlands Antilles | Hyprsaline soil located near Alicante in southern Spain |
+ positive, − negative, nd not determined, T type strain
DSM Deutsche Sammlung von Mikroorganismen, JCM Japan Collection of Microorganisms, ATCC American Type Culture Collection