Počet záznamů: 1
Arabidopsis exocyst subunits SEC8 and EXO70A1 and exocyst interactor ROH1 are involved in the localized deposition of seed coat pectin
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SYSNO ASEP 0350472 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Arabidopsis exocyst subunits SEC8 and EXO70A1 and exocyst interactor ROH1 are involved in the localized deposition of seed coat pectin Tvůrce(i) Kulich, I. (CZ)
Cole, R. (US)
Drdová, Edita (UEB-Q) RID, ORCID
Cvrčková, F. (CZ)
Soukup, A. (CZ)
Fowler, J. (US)
Žárský, Viktor (UEB-Q) RID, ORCIDZdroj.dok. New Phytologist - ISSN 0028-646X
Roč. 188, č. 2 (2010), s. 615-625Poč.str. 11 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova Arabidopsis ; cell wall ; exocyst Vědní obor RIV EF - Botanika CEP ME 841 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy LC06034 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy CEZ AV0Z50380511 - UEB-Q (2005-2011) UT WOS 000282225000028 DOI 10.1111/j.1469-8137.2010.03372.x Anotace Polarized deposition of cell wall pectins is a key process in Arabidopsis thaliana myxospermous seed coat development. The exocyst complex has recently been shown to be involved in the regulation of cell polarity in plants. Here, we used the Arabidopsis seed coat to study the role of the exocyst in polarized pectin delivery. Using a yeast two-hybrid screen, we identified a new interactor of the exocyst subunit Exo70A1, termed Roh1. T-DNA insertions in SEC8, EXO70A1 caused deviations from normal seed coat development, in particular reduced pectin deposition. A gain-of-function mutation of ROH1 also caused reduced pectin deposition. Interestingly, we observed a systematic difference in seed coat development between primary and secondary inflorescences in wild-type plants: siliques from secondary branches produced seeds with thicker seed coats. The participation of exocyst subunits in mucilage deposition provides evidence for the role of the exocyst in polarized cell wall morphogenesis. Pracoviště Ústav experimentální botaniky Kontakt David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Rok sběru 2011
Počet záznamů: 1