Abstract:

Study about the mechanism of cold acclimation of tea plants is of importance for elucidating the frost resistance of perennial plants and breeding cold-resistance variety of tea plants. In present paper, CsCOR1 gene was cloned from tea leaves by RACE approach, and the expression profile of CsCOR1 gene were analyzed by Real-time RT PCR strategy under cold, hyperosmosis and ABA-treatment. The results show that CsCOR1 gene encodes a 86 amino-acid peptide, which consists of a hydrophobic N-terminal region for a signal peptide and a hydrophilic C-terminal domain that is rich in glycine，arginine and proline. There are two internal repeat sequences in mature CsCOR1. CsCOR1 expression was induced dramatically by cold/hyperosmosis and moderately by ABA in tea leaves via real-time RT PCR analysis.