Picocyanobacteria are cyanobacteria that are part of the picoplankton, which is the fraction of plankton composed by cells between 0.2 and 2 μm. Picocyanobacteria comprise the smallest photoautotrophs.
Genera Freshwater picocyanobacteria genera include Synechococcus, Cyanobium, and Synechocystis, and marine picocyanobacteria genera are represented primarily by Synechococcus and Prochlorococcus.
See also Cyanobacteria Picoplankton Picoeukaryote Picozoa Plankton § Size groups
References
External links
How Ancient Microbes Rode Bug Bits Out to Sea (PBS Eons)