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Ultrastructural aspects of the 'statocyst' of Xenoturbella (Deuterostomia) cast doubt on its function as a georeceptor
Uppsala University, Museums etc., Museum of Evolution.
2007 (English)In: Tissue & Cell, ISSN 0040-8166, E-ISSN 1532-3072, Vol. 39, no 3, 171-177 p.Article in journal (Refereed) Published
Abstract [en]

The "statocyst" in the enigmatic worm Xenoturbella is a structure containing motile flagellated cells. It is situated inside the subepidermal membrane complex (between epidermis and muscular layers) in the anterior end of the body. The motile cells contain a lipophilic retractile body ("statolith"). and a series of vesicles from small dense core vesicles presumably formed from the retractile body to large vesicles with dense aggregates of filamentous tubules that become exocytized through secretion. It is unlikely that the statocyst is a georeceptor (true statocyst); maybe it has an endocrine function.

Place, publisher, year, edition, pages
2007. Vol. 39, no 3, 171-177 p.
Keyword [en]
Xenoturbella, statocyst, motile cells, retractile body
National Category
Biological Sciences
URN: urn:nbn:se:uu:diva-144212DOI: 10.1016/j.tice.2007.03.002ISI: 000248104900004PubMedID: 17434196OAI: oai:DiVA.org:uu-144212DiVA: diva2:392850
Available from: 2011-01-28 Created: 2011-01-28 Last updated: 2011-01-28Bibliographically approved

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