title: Heat dissociation and maceration of marine Cnidaria.
abstract: The effect of increased temperature on the tissue integrity of polyps and medusae ofPodocoryne carnea is described. Animals exposed for 10 to 20 min to a temperature of 35°C are easily dissociated into single cells. These dissociated cells round up, form reaggregates and, depending on their origin, regenerate polyp or medusa structures. However, as the exposure time is increased, the dissociated cells gradually lose the ability to reaggregate or to regenerate defined structures. At incubation times exceeding 50 min, the tissue separates into single cells which retain their normalin vivo shapes but which do not form reaggregates. These are termed macerated cells. The ultrastructure and protein profile of macerated cells demonstrate no major changes from those of untreated cells. Both the dissociation and maceration methods are applicable to other cnidarian species for developmental, histological and biochemical studies.
authors.affiliation: Zoological Institute, University of Zürich, Winterthurerstr. 190, CH-8057, Zürich, Switzerland.
authors.forename: Volker
authors.initials: V
authors.lastname: Schmid
authors.affiliation: Zoological Institute, University of Zürich, Winterthurerstr. 190, CH-8057, Zürich, Switzerland.
authors.forename: Robert
authors.initials: R
authors.lastname: Stidwill
authors.affiliation: Zoological Institute, University of Zürich, Winterthurerstr. 190, CH-8057, Zürich, Switzerland.
authors.forename: Andreas
authors.initials: A
authors.lastname: Bally
authors.affiliation: Zoological Institute, University of Zürich, Winterthurerstr. 190, CH-8057, Zürich, Switzerland.
authors.forename: Beverly
authors.initials: B
authors.lastname: Marcum
authors.affiliation: Zoological Institute, University of Zürich, Winterthurerstr. 190, CH-8057, Zürich, Switzerland.
authors.forename: Pierre
authors.initials: P
authors.lastname: Tardent
keywords: Dissociation; Maceration; MarineCnidaria; Temperature Effect