Rapamycin Treatment Suppresses the lrx1 Root Hair Phenotype.
(A) RNA gel blot of wild-type (WT) Arabidopsis transformed with a 35S promoter:FKBP12 construct.
(B) lrx1 mutants expressing FKBP12 were sensitive to rapamycin (rapam.) and showed a suppressed lrx1 root hair phenotype (right). In nontransgenic lrx1 mutants, the root hair phenotype was not affected by rapamycin (left). Bar = 0.5 mm.