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The undischarged extrusomes (yellow arrow) are plentiful in the cytoplasm. They are 10-15 µm long,slender,curved with a small bulbar enlargement at one end. This is seen only with DIC. There is a small cluster of extrusomes at the anterior cell apex.
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The discharged extrusomes have a long thread-like extension (black arrow).Stained by the silver carbonate technique (see Foissner, W.Europ. J. Protistol.27:313-330;1991).Brightfield.
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The discharged extrusomes have a long thread-like extension.Stained by the silver carbonate technic (see Foissner, W.Europ. J. Protistol.27:313-330;1991).Brightfield.
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There are 25-35 right somatic kineties that converge anteriorly on a suture. There are 4-6 dorsal rows of bristle-like cilia. There is a single row of short cilia forming the dorsal brush.DIC.
