Fig. 1.

Western blot (A) and Northern blot (B) analyses of the expression of rbp1 and rbp2 in Synechocystis during preconditioning. Cells cultured at 30°C were transferred to 15°C with illumination of 30 μmol photons m⁻² s⁻¹ for different periods of time. The RNase P RNA subunit gene rnpB (22) was used as the internal control in the Northern blot analysis.