TITLE

The cell morphogenesis gene ANGUSTIFOLIA encodes a CtBP/BARS-like protein and is involved in the control of the microtubule cytoskeleton

AUTHOR(S)
Folkers, U.; Kirik, V.; Schöbinger, U.; Falk, S.; Krishnakumar, S.; Pollock, M.A.; Oppenheimer, D.G.; Day, I.; Reddy, A.R.; Jürgens, G.; Hülskamp, M.
PUB. DATE
March 2002
SOURCE
EMBO Journal;3/15/2002, Vol. 21 Issue 6, p1280
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The ANGUSTIFOLIA (AN) gene is required for leaf hair (trichome) branching and is also involved in polarized expansion underlying organ shape. Here we show that the AN gene encodes a C-terminal binding proteins/brefeldin A ADP-ribosylated substrates (CtBP/BARS) related protein. AN is expressed at low levels in all organs and the AN protein is localized in the cytoplasm. In an mutant trichomes, the organization of the actin cytoskeleton is normal but the distribution of microtubutes is aberrant. A role of AN in the control of the microtubule cytoskeleton is further supported by the finding that AN genetically and physically interacts with ZWICHEL, a kinesin motor molecule involved in trichome branching. Our data suggest that CtBP/BARS-like protein function in plants is directly associated with the microtubule cytoskeleton.
ACCESSION #
12955747

 

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