Amphikrikos

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Amphikrikos is a genus of algae in the family Oocystaceae.[1] It is found in freshwater and has been reported from most continents.[2]

Amphikrikos consists of solitary, planktonic cells about 3–13 μm long and 2–9 μm wide. Cells are barrel-shaped, cylindrical, ellipsoid or broadly oval, with rounded poles. The cell may be surrounded by a thin, structureless mucilage layer. The cell wall is smooth, or covered with dark-brown incrustations on the surface which appear as granules or ribs, mainly near the equator and poles of the cell. Cells contain one (or two) chloroplasts, which is/are parietal and may have or lack a pyrenoid. Asexual reproduction occurs by the formation of typically four (rarely 2 or 8) autospores per cell; these are released through a tear in the mother cell wal.[2][3]

References

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