CaSIR1 Method for improving the resistance to the drought stress using CaSIR1 in plants and CaSIR1 gene

摘要

The present invention relates to a novel red pepper-derived Capsicum annuum stress-induced RING finger type E3 protein 1 (CaSIR1) gene/protein and a method for improving dry stress resistance of plants using the same. The present invention has identified CaSIR1 gene which encodes a protein improving resistance against dry stress and confirmed that the CaSIR1 protein plays a role as a positive regulator of ABA signaling and a dry stress resistance improvement effect is shown in transformed plants overexpressing the protein. Accordingly, the regulation of expression of the CaSIR1 gene can be used in improvement of crops used by humanity and especially, can be used in improving plant productions. The method for improving dry stress resistance of plants comprises a step (a) of transforming a gene of SEQ ID NO: 1 encoding CaSIR1 protein to plants, and a step (b) of overexpressing the CaSIR1 protein in the transformed plants.