phytohormone treatments, in which the effects of five classic plant hormone stresses were surveyed
in Oryza sativa. The results showed that 11 miRNAs were found to be dysregulated by one or more
phytohormone treatments. The target genes of these miRNAs were validated in vivo and their
expression profiling were revealed. We also analyzed the promoter regions of the 22 conserved miRNAs
for phytohormone-responsive elements and the existence of the elements provided further evidences
supporting our results. These findings enable us to further investigate the role of miRNAs in
phytohormone signaling.