Fig. 7.

Medium’s effect on GFP expression. Synechocystis sp. PCC 6803 cells grown in the BG11 (a, b) or CB (c, d) medium for 12 days, harboring pVZ321 (a, c) or pGFP461c (b, e), were harvested into microtubes (top) and subjected to microscopic observation (bottom). Conditions were as for Fig. 5, but the exposure time was 0.5 s