Signals Regulating Vesicle Trafficking in Paramecium Cells

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PLATTNER, Helmut, 2016. Signals Regulating Vesicle Trafficking in Paramecium Cells. In: WITZANY, Guenther, ed., Mariusz NOWACKI, ed.. Biocommunication of Ciliates. Cham:Springer International Publishing, pp. 83-96. ISBN 978-3-319-32209-4. Available under: doi: 10.1007/978-3-319-32211-7_6

@incollection{Plattner2016-05-24Signa-34663, title={Signals Regulating Vesicle Trafficking in Paramecium Cells}, year={2016}, doi={10.1007/978-3-319-32211-7_6}, isbn={978-3-319-32209-4}, address={Cham}, publisher={Springer International Publishing}, booktitle={Biocommunication of Ciliates}, pages={83--96}, editor={Witzany, Guenther and Nowacki, Mariusz}, author={Plattner, Helmut} }

2016-07-05T14:38:10Z Plattner, Helmut terms-of-use Plattner, Helmut eng Signals Regulating Vesicle Trafficking in Paramecium Cells 2016-07-05T14:38:10Z 2016-05-24 Most data available from Paramecium, fewer from Tetrahymena, disclose essentially the same principles of signaling as in metazoans up to man. Microtubules serve for long-range signaling, whereas SNARE proteins, H<sup>+</sup>-ATPase, GTPases and actin provide short-range molecular signals, with Ca<sup>2+</sup> as a most efficient, locally and spatially restricted signal particularly for membrane fusion. This is enabled by the strategic positioning of Ca<sup>2+</sup>-release channels, type InsP<sub>3</sub> receptors and ryanodine-receptor-like proteins, also in ciliates. In Paramecium, the most evident trafficking routes encompass exo-/endocytosis, endo-/phagocytosis and the contractile vacuole complex. The high specificity, precision and efficiency of vesicle trafficking regulation in ciliates is facilitated by their highly regular, epigenetically controlled cell structure, with firmly installed microtubular rails.

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