Cyanobacteria are autotrophic, prokaryotic bacterial cells. They are sometimes called blue-green algae.
Most species are fresh water, some are marine
Anabema is a cyanobacterium with bead-like cells in a filament. While most of these cells are similar in size, some are larger and lack the obvious photosynthetic pigments. These cells are refered to as heterocysts--nitrogen fixating cells.
Another filamentous Cyanobacteria, forms clusters visible to the naked eye. They are known by the periodic oscillations of the filaments
Similar to oscillatoria, but with a distinctive spiral shape.
Another clustering bacterium. Exhibits branching or growth of cells in different planes. The adjacent cells of this organism are connected together with a mucilage sheath.
A bacterium that mimics stigonema's branching growth patterns. This branch-like mimic is doesn't grow in multiple planes so it is not considered true branching instead it is false branching
A nitrogen fixating bacteria notable by its spherical shape visible to the naked eye. It can be found as free living in soil or fresh water; or as a symbiont on trees and in lichen
Works Cited: Robert Egan, David Sutherland, and Lisa Boucher Bio 1450 lab manual
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