Cylindrospermopsis raciborskii

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Taxonomic Group:Cyanobacteria
Trophic Status:Autotrophic
Size Range:N/A
Key Characteristics:Chains usually 3-10 cells only, with terminal cone- or triangular-shaped heterocytes; if akinetes are present, they are almost always adjacent to the heterocytes; if akinetes are observed in the middle of a chain, it is most likely Raphidiopsis curvata (see below); if terminal heterocytes are missing, it is extremely difficult to distinguish from Raphidiopsis curvata
Confused With:Raphidiopsis curvata, which also has chains of 3-10 cells, but only have vegetative cells and akinetes (always present in the middle of the chain, never on the end) and no heterocytes; we might also be accidentally including Cylindrospermum species, which also have terminal heterocytes, but that are more rounded
Toxin:Anatoxins, cylindrospermopsin, saxitoxins