The present invention provides compositions and methods for regulating
expression of heterologous nucleotide sequences in a plant. Compositions
include a novel nucleotide sequence for an inducible promoter for the
gene encoding a maize 2-oxoglutarate-dependent oxygenase. A method for
expressing a heterologous nucleotide sequence in a plant using the
promoter sequences disclosed herein is provided. The method comprises
stably incorporating into the genome of a plant cell a nucleotide
sequence operably linked to the root-preferred promoter of the present
invention and regenerating a stably transformed plant that expresses the
nucleotide sequence.