| Cnidarian internal stinging mechanism. | |
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MedLine Citation:
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PMID: 19129118 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Stinging mechanisms generally deliver venomous compounds to external targets. However, nematocysts, the microscopic stinging organelles that are common to all members of the phylum Cnidaria, occur and act in both external and internal tissue structures. This is the first report of such an internal piercing mechanism. This mechanism identifies prey items within the body cavity of the sea anemone and actively injects them with cytolytic venom compounds. Internal tissues isolated from sea anemones caused the degradation of live Artemia salina nauplii in vitro. When examined, the nauplii were found to be pierced by discharged nematocysts. This phenomenon is suggested to aid digestive phagocytic processes in a predator otherwise lacking the means to masticate its prey. |
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Authors:
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Ami Schlesinger; Eliahu Zlotkin; Esti Kramarsky-Winter; Y Loya |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Proceedings. Biological sciences / The Royal Society Volume: 276 ISSN: 0962-8452 ISO Abbreviation: Proc. Biol. Sci. Publication Date: 2009 Mar |
Date Detail:
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Created Date: 2009-02-09 Completed Date: 2009-03-24 Revised Date: 2010-09-22 |
Medline Journal Info:
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Nlm Unique ID: 101245157 Medline TA: Proc Biol Sci Country: England |
Other Details:
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Languages: eng Pagination: 1063-7 Citation Subset: IM |
Affiliation:
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Department of Zoology, Tel Aviv University, 69978 Tel Aviv, Israel. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Artemia Mechanoreceptors Sea Anemones / cytology*, physiology* |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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