Article
Inactivation of plasma membrane-localized CDPK-RELATED KINASE5 decelerates PIN2 exocytosis and root gravitropic response in Arabidopsis.
The Plant cell - 1 May 2013
Rigó Gábor, Ayaydin Ferhan, Tietz Olaf, Zsigmond Laura, Kovács Hajnalka, Páy Anikó, Salchert Klaus, Darula Zsuzsanna, Medzihradszky Katalin F, Szabados László, Palme Klaus, Koncz Csaba, Cséplo Agnes
Abstract excerpt
CRK5 is a member of the Arabidopsis thaliana Ca(2+)/calmodulin-dependent kinase-related kinase family. Here, we show that inactivation of CRK5 inhibits primary root elongation and delays gravitropic bending of shoots and roots. Reduced activity of the auxin-induced DR5-green fluorescent protein reporter suggests that auxin is depleted from crk5 root tips. However, no tip collapse is observed and the transcription...
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