cnidocyte
Sign in to saveAlso known as cnidoblast, nematocyte, cnidocyte cells, cnidocyte cell
thumb|Nomarski micrograph of a [[ruthenium red-stained nematocyst from Aiptasia pallida, the pale anemone. The red dye stains the polyanionic venom proteins found inside the capsule of this partially-discharged nematocyst.]]
In the Vinony graph
Within Vinony's link graph, cnidocyte is referenced by 445 other articles, and connects out to Hydrozoa, Araneae and cell.
It sits within the topics Animal cells and Cnidarian anatomy.
Its subject is documented across 28 Wikipedia language editions.
Wikidata facts
- Instance of
- cell type
Show 2 more facts
- described by source
- Armenian Soviet Encyclopedia
- Commons category
- Nematocyst
Sources (2)
via Wikidata · CC0
~13 min read
Encyclopedic overview
14 sectionsContents
- Structure and function
- Cnidocyte capsule composition
- Discharge mechanism
- Fluid dynamics in nematocyst discharge
- Prey detection
- Types of cnidae
- Cnidocyte development
- Modes of renewal
- Cnidocyst maturation
- Nematocyst toxicity
- See also
- Notes
- References
- External links
thumb|Nomarski micrograph of a [[ruthenium red-stained nematocyst from Aiptasia pallida, the pale anemone. The red dye stains the polyanionic venom proteins found inside the capsule of this partially-discharged nematocyst.]]
A cnidocyte (also known as a cnidoblast) is a type of cell containing a large secretory organelle called a cnidocyst, that can deliver a sting to other organisms as a way to subdue prey and defend against predators. A cnidocyte explosively ejects the toxin-containing cnidocyst which is responsible for the stings delivered by a cnidarian. The presence of this cell defines the phylum Cnidaria, which also includes the corals, sea anemones, hydrae, and jellyfish. Cnidocytes are single-use cells that need to be continuously replaced.
Excerpted from Wikipedia’s “cnidocyte” article, available under the CC BY-SA 4.0 licence.