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- This genus consists of tiny, free floating
cylindrical or rod-like unicells. The cells are 1 µm wide
and three times as long, and range in color from pale blue-green
or olive green to yellow or red.
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- The cells are solitary or grouped in irregular
clumps. Anacystis does not form distinct colonies but
can have groups of 2-4 cells that have not separated completely
after dividing. The cells may be surrounded by a loose mucilage
layer, but do not have a distinct sheath. The cellular contents
- are mostly uniform but sometimes have visible
granules. Some strains can swim, but do not have gas vesicles.
After recent taxonomic revisions, over 20 species
have been described. Anacystis nidulans, as shown here,
is a high temperature strain also known as Synechococcus
nidulans.
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- Learn
more about the taxonomy of Anacystis, Synechococcus,
and other related genera.
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