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Ca2+ release from subplasmalemmal stores as a primary event during exocytosis in Paramecium cells

Ca2+ release from subplasmalemmal stores as a primary event during exocytosis in Paramecium cells

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ERXLEBEN, Christian, Helmut PLATTNER, 1994. Ca2+ release from subplasmalemmal stores as a primary event during exocytosis in Paramecium cells. In: Journal of Cell Biology. 127(4), pp. 935-945. ISSN 0021-9525. eISSN 1540-8140

@article{Erxleben1994relea-8463, title={Ca2+ release from subplasmalemmal stores as a primary event during exocytosis in Paramecium cells}, year={1994}, doi={10.1083/jcb.127.4.935}, number={4}, volume={127}, issn={0021-9525}, journal={Journal of Cell Biology}, pages={935--945}, author={Erxleben, Christian and Plattner, Helmut} }

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/rdf/resource/123456789/8463"> <dc:contributor>Plattner, Helmut</dc:contributor> <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/8463"/> <dc:language>eng</dc:language> <dc:format>application/pdf</dc:format> <dc:contributor>Erxleben, Christian</dc:contributor> <dcterms:title>Ca2+ release from subplasmalemmal stores as a primary event during exocytosis in Paramecium cells</dcterms:title> <dcterms:bibliographicCitation>First publ. in: Journal of Cell Biology 127 (1994), 4, pp. 935-945</dcterms:bibliographicCitation> <dc:rights>deposit-license</dc:rights> <dcterms:rights rdf:resource="https://creativecommons.org/licenses/by-nc-nd/2.0/legalcode"/> <dcterms:abstract xml:lang="eng">A correlated electrophysiological and light microscopic evaluation of trichocyst exocytosis was carded out with Paramecium cells which possess extensive cortical Ca stores with footlike links to the plasmalemma. We used not only intra- but also extracellular recordings to account for polar arrangement of ion channels (while trichocysts can be released from all over the cell surface). With three widely different secretagogues, aminoethyldextran (AED), veratridine and caffeine, similar anterior Nain and posterior Kout currents (both known to be Ca 2+-dependent) were observed. Direct de- or hyperpolarization induced by current injection failed to trigger exocytosis. For both, exocytotic membrane fusion and secretagogue-induced membrane currents, sensitivity to or availability of Ca2+ appears to be different. Current responses to AED were blocked by W7 or trifluoperazine, while exocytosis remained unaffected. Reducing [Ca2+]o to</dcterms:abstract> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T17:43:51Z</dc:date> <dc:creator>Plattner, Helmut</dc:creator> <dcterms:issued>1994</dcterms:issued> <dc:creator>Erxleben, Christian</dc:creator> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T17:43:51Z</dcterms:available> </rdf:Description> </rdf:RDF>

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