Abstract
ASYMMETRIC LEAVES2 gene encodes a plant specific protein with cystein repeats, conserved-glycine and leucine-zipper-like sequence in the N-terminal half. AS2 is involved in the development of a flat and symmetric lamina. In the seedlings of ProAS2:GUS transgenic plants, GUS expression was observed not only in the shoot apex and the developing leaves but also in the roots. Although GUS expression was observed in the root, the root of as2 mutant resembled that of wild-type. To understand the function of AS2 in the root, we investigated the root tips of AS2-GR transgenic plants which induced nuclear translocation by DEX treatment. AS2-GR transgenic plants grown on the plate containing100 nM DEX exhibited severe phenotypes and died on several days. We investigate the root of AS2-GR transgenic plants grown on the plate containing low concentrations of DEX.
