A RICE DEHYDRATION- INDUCIBLE PROTEIN KINASE GENE AND ITS ENCODED PROTEIN AND TRANSGENIC PLANT BY THE SAME

摘要

A protein kinase gene is provided to increase dehydration of crop plants through its overexpression, so that the gene is useful for increasing resistance against stresses of monocotyledon and dicotyledon crop plants. A protein kinase capable of inducing dehydration of crop plants has the amino acid sequence of SEQ ID NO:1 having a protein kinase domain in the N-terminal and an activity-regulating domain in the C-terminal, is isolated from the rice and has phosphorylation activity to a bZIP transcription factor of rice ABF family. A protein kinase gene has 95th-1189th nucleotides in the nucleotide sequence of SEQ ID NO:2, wherein the expression of the protein kinase gene is induced by dry stress and salt. The environment resistance of a crop plant is controlled by overexpression or inhibition of the protein kinase gene. A transgenic plant having increased dehydration is produced by transforming a plant with an expression vector containing the protein kinase gene.