PUB40-Mediated Cell-Layer–Specific Accumulation of BZR1 in Roots.
(A and B) Protein accumulation pattern of BZR1-YFP (A) and PUB40-YFP (B) in Arabidopsis roots.
(C) BZR1-YFP accumulation in response to 1 h of 100 nM of BL treatment.
(D) Protein accumulation of BZR1-YFP in BZR1pro-BZR1-YFP pub40-1.
(E) bzr1-1D-YFP accumulation in wild-type roots. Proteins were expressed under the control of their native promoters. PI-stained root tips were observed by confocal microscopy. Green = fluorescent signals of YFP-fused proteins. Scale bars = 10 μm.