Table 1.
Typing and growth characteristics of selected model strainsa
| Strain | DNA-DNA hybridization (% homology) | Growth temp range |
tD (min) | ||
|---|---|---|---|---|---|
| Tmin (°C) | Tmax (°C) | Topt (°C) | |||
| TNO-09.006 | Anoxybacillus flavithermus LMG 18397T (75 ± 8) | 43 | 62 | 57 | 52 |
| TNO-09.008 | Geobacillus stearothermophilus LMG 6939T (86 ± 9) | 48 | 67 | 61 | 35 |
| TNO-09.020 | Geobacillus thermoglucosidans LMG 7137T (88 ± 13) | 50 | 69 | 60 | 32 |
a
Species assignment of model strains was confirmed by DNA-DNA hybridizations with reference strains from the LMG culture collection. The Tmin (°C) and Tmax (°C) are defined as the maximum and minimum temperatures at which growth could still be detected under the conditions used (see Materials and Methods). The Topt (°C) is the temperature at the highest growth rate, which is expressed in minutes of doubling time [tD (min)].