Figure 1
From: Na+-stimulated phosphate uptake system in Synechocystis sp. PCC 6803 with Pst1 as a main transporter
Photoautotrophic growth and absorption spectra of Synechocystis sp. PCC 6803 wild type, and the ΔPst1 and ΔPst2 mutants. (A) Photoautotrophic growth of strains as measured by the optical density at 730 nm in BG-11 (open symbols) or Pi-limiting BG-11 (closed symbols); wild type (circles); ΔPst1 (triangles); and ΔPst2 (squares). Absorption spectra of whole cells after 3 days in BG-11 of wild type (solid lines), ΔPst1 (dot lines) and ΔPst2 (dash lines) under Pi-sufficient conditions (B) and Pi-limiting conditions (C).