The structure of the cloned fragment of wheat (Triticum aestivum L.) TADHN gene encoding dehydrin-like protein was examined. A comparative analysis of nucleotide and deduced amino acid sequences revealed a high homology of this fragment with sequences of the barley dhn8 gene and wheat wcor gene family. In deduced amino acid sequence of the TADHN fragment, a 15-residue region EKKGFLEKIKEKLPG was found, which corresponded to a highly conserved K-segment of dehydrins. Wheat seedling treatment with 3.7 μM ABA and 0.4 μM 24-epibrassinolide exerted similar stimulatory effects on expression of the TADHN gene, which indicates the involvement of dehydrins in the protective action of these phytohormones in wheat plants.
Russian Journal of Plant Physiology – Springer Journals
Published: Jan 6, 2007
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