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Vorticella
Vorticella is a genus of protozoa, with over 100 known species. They are stalked inverted bell-shaped ciliates, placed among the peritrichs. Each cell has a separate stalk anchored onto the substrate, which contains a contracile fibril called a myoneme. When stimulated this shortens, causing the stalk to coil like a spring. Reproduction is by budding, where the cell undergoes longitudinal fission and only one daughter keeps the stalk. Other genera such as Carchesium resemble Vorticella but are branched or colonial. Additional recommended knowledgeSome of the most common species include:
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This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Vorticella". A list of authors is available in Wikipedia. |