Article
The beta-subunit of the Arabidopsis G protein negatively regulates auxin-induced cell division and affects multiple developmental processes.
The Plant cell - 1 Feb 2003
Ullah Hemayet, Chen Jin-Gui, Temple Brenda, Boyes Douglas C, Alonso José M, Davis Keith R, Ecker Joseph R, Jones Alan M
Abstract excerpt
Plant cells respond to low concentrations of auxin by cell expansion, and at a slightly higher concentration, these cells divide. Previous work revealed that null mutants of the alpha-subunit of a putative heterotrimeric G protein (GPA1) have reduced cell division. Here, we show that this prototypical G protein complex acts mechanistically by controlling auxin sensitivity toward cell division. Loss-of-function G...
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