cnidocyte

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Related to Cnidocyst: nematocyst

cnidocyte

[′knīd·ə‚sīt]
(invertebrate zoology)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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One of the first steps in cnidocyte discharge is thought to be a [Ca.sup.2+]-dependent exocytotic event whereby the membrane at the apical pole of the cnidocyst fuses with the cell membrane.
The stinging cells, or cnidocysts, of sea anemones, jellyfish and other cnidarians contain a coiled hollow thread that unravels rapidly when triggered by physical contact.
The use of cnidocysts for ecological races identification from sea anemones populations (Anthozoa, Actiniidae).