Cyanobionts are cyanobacteria that coexist with a variety of other organisms, including algal and fungal species, terrestrial or aquatic plants, and a variety of other organisms.
They may live inside the host's extracellular or intracellular structures.
Cyanobacteria photobionts are referred to as cyanobionts.
Cyanobacteria are both aquatic and photosynthetic, meaning they can live in water and produce their own food.
Photobiont is the algal component in a lichen.
They are also key sources of nitrogen fertilizer for rice and bean cultivation.