Table 1 Differential characteristics between strains MW9T and the type strains of recognized Chelatococcus species
C. thermostellatus MW9T DSM 28244T(a) | C. asaccharovorans DSM 6462T (a) | C. daeguensis K106T CCUG 54519T (a) | C. sambhunathii HT4T DSM 18167T (a) | |
|---|---|---|---|---|
Isolation source | Organic waste compost (Ibrahim et al. 2010) | Wastewater, soil (Auling et al. 1993) | Textile waste matter (Yoon et al. 2008) | Hot spring (Panday and Das 2010) |
Cell morphology | Rods | Coccoid rods | Rods(b) | Short rods(b) |
Motility | + | − | +(b) | + |
Mucoid colony on MSM with glucose | − | ND | +(b) | −(b) |
Hydrolysis of gelatin | + | + | − | + |
Use of NTA as sole carbon and nitrogen source | − | + | − | + |
Utilisation of | ||||
Mannose, gluconate | + | + | + | − |
Xylose | − | + | + | − |
Mannose | + | + | + | − |
Glycerol | w | − | − | − |
Sucrose | w | − | − | − |
Growth temp. | ||||
Range | 37–55 °C | 4–41 °C | 20–51 °C | 20–50 °C |
Optimum | 50 °C(b) | 35–37 °C | 30–37 °C(b) | 37–42 °C(b) |
Growth pH | ||||
Range | 6.0–8.5 | 5.5–9.5 | 5.5–10.0 | 6.0–8.5 |
Optimum | 7.0–7.5 | 7.0–8.0 | 7.0–7.5 | 7.5–8.0 |
Star-shaped aggregates | +(b) | − | +(b) | +(b) |
PHB granules | +(b) | + | +(b) | +(b) |