Exocytosis and cell polarity in plants - exocyst and recycling domains

0337282 - ÚEB 2010 RIV GB eng J - Článek v odborném periodiku
Žárský, Viktor - Cvrčková, F. - Potocký, Martin - Hála, Michal
Exocytosis and cell polarity in plants - exocyst and recycling domains.
New Phytologist. Roč. 183, č. 2 (2009), s. 255-272. ISSN 0028-646X. E-ISSN 1469-8137
Grant CEP: GA MŠMT(CZ) LC06034; GA AV ČR IAA601110916; GA MŠMT ME 841
Výzkumný záměr: CEZ:AV0Z50380511
Klíčová slova: cell polarity * Exo70 * exocyst
Kód oboru RIV: ED - Fyziologie
Impakt faktor: 6.033, rok: 2009

In plants, exocytosis is a central mechanism of cell morphogenesis. We still know surprisingly little about some aspects of this process, starting with exocytotic vesicle formation, which may take place at the trans-Golgi network even without coat assistance, facilitated by the local regulation of membrane lipid organization. The RabA4b guanosine triphosphatase (GTPase), recruiting phosphatidylinositol-4-kinase to the trans-Golgi network, is a candidate vesicle formation organizer. However, in plant cells, there are obviously additional endosomal source compartments for secretory vesicles. The Rho/Rop GTPase regulatory module is central for the initiation of exocytotically active domains in plant cell cortex (activated cortical domains). Most plant cells exhibit several distinct plasma membrane domains, established and maintained by endocytosis-driven membrane recycling. We propose the concept of a 'recycling domain', uniting the activated cortical domain and the connected endosomal compartments.
Trvalý link: http://hdl.handle.net/11104/0181311