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PIN2 Polarity Establishment in Arabidopsis in the Absence of an Intact Cytoskeleton

M. Glanc, M. Fendrych, J. Friml,

. 2019 ; 9 (6) : . [pub] 20190607

Jazyk angličtina Země Švýcarsko

Typ dokumentu časopisecké články, práce podpořená grantem

Perzistentní odkaz   https://www.medvik.cz/link/bmc20006274

Cell polarity is crucial for the coordinated development of all multicellular organisms. In plants, this is exemplified by the PIN-FORMED (PIN) efflux carriers of the phytohormone auxin: The polar subcellular localization of the PINs is instructive to the directional intercellular auxin transport, and thus to a plethora of auxin-regulated growth and developmental processes. Despite its importance, the regulation of PIN polar subcellular localization remains poorly understood. Here, we have employed advanced live-cell imaging techniques to study the roles of microtubules and actin microfilaments in the establishment of apical polar localization of PIN2 in the epidermis of the Arabidopsis root meristem. We report that apical PIN2 polarity requires neither intact actin microfilaments nor microtubules, suggesting that the primary spatial cue for polar PIN distribution is likely independent of cytoskeleton-guided endomembrane trafficking.

Citace poskytuje Crossref.org

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$a Glanc, Matouš $u Institute of Science and Technology Austria (IST Austria), 3400 Klosterneuburg, Austria. matous.glanc@psb.vib-ugent.be. Department of Experimental Plant Biology, Faculty of Science, Charles University, 12844 Prague, Czech Republic. matous.glanc@psb.vib-ugent.be.
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