Algae, Blue Green

Algae, Blue-Green

Bacteria, Blue Green

Bacteria, Blue-Green

Blue Green Algae

Blue Green Bacteria

Blue-Green Algae

Blue-Green Bacteria


A phylum of oxygenic photosynthetic bacteria comprised of unicellular to multicellular bacteria possessing CHLOROPHYLL a and carrying out oxygenic PHOTOSYNTHESIS. Cyanobacteria are the only known organisms capable of fixing both CARBON DIOXIDE (in the presence of light) and NITROGEN. Cell morphology can include nitrogen-fixing heterocysts and/or resting cells called akinetes. Formerly called blue-green algae, cyanobacteria were traditionally treated as ALGAE.