Table 1. Comparison of physiological characteristics of Mrakia blollopis SK-4 and other Mrakia species.
| Characteristic | M. blollopis SK-4 | M. blollopis CBS8921T | M. psychrophhila AS2.1971T | M. frigida CBS5270T |
| Maximum growth temperature | 22°C | 20°C | 18°C | 17°C |
| Assimilation of | ||||
| Lactose | + | W | + | V |
| Inositol | + | w/+ | + | V |
| D-arabinose | + | w/− | + | V |
| Ethanol | w/− | + | + | + |
| Growth on 50% glucose | w/− | − | + | − |
| Growth on vitamin-free medium | + | W | + | − |
| Fermentation of | ||||
| Galactose | + | − | − | W |
| Lactose | + | − | − | − |
| Raffinose | + | − | − | W |
| Maltose | + | − | − | W |
Main physiology test results for characteristics of M. blollopis SK-4 and related species are shown. Physiological data were taken from Fell et al. (1969), Xin and Zhou (2007), Thomas-Hall et al. (2010) and this study. +, positive; w, weak; −, negative; v, variable; nd, no data.