Cyanobacteria |
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| Algae, Blue Green; Bacteria, Blue Green; Bacteria, Blue-Green; Blue Green Algae; Blue Green Bacteria; Blue-Green Algae | |
| 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. | |