Fig. 6From: The small Ca2+-binding protein CSE links Ca2+ signalling with nitrogen metabolism and filament integrity in Anabaena sp. PCC 7120Phenotypic features of the Δcse mutant. Electron micrographs of wild-type (WT; left) and Δcse (right) cells grown in BG11 medium in 3% CO2. a-f Scanning electron microscopy (SEM) images. g-h Transmission electron microscopy (TEM) images. Normal heterocysts (carets) and partially-differentiated proheterocysts (arrows) are indicated in (d-h)Back to article page