Fig. 3From: Application of the thermostable β-galactosidase, BgaB, from Geobacillus stearothermophilus as a versatile reporter under anaerobic and aerobic conditionsExpression of bgaB and lacZ in G. thermoglucosidans at 60 and 45 °C under aerobic and anaerobic conditions. The plates were supplemented with either S-gal or X-gal. Promoters P13, P24, and P27 of different strength were taken from the library (see Fig. 2)Back to article page