Characterization of an Abiotic Stress-inducible Dehydrin Gene, OsDhn1, in Rice (Oryza sativa L.)

• Published in: Molecules and cells 2005, 19(2), , pp.212-218
• Main Authors: Lee, S.C. (Sogang University, Seoul, Republic of Korea), Jun, S.H., An, G.H. (Pohang University of Science and Technology, Pohang, Republic of Korea), Lee, M.Y. (Sogang University, Seoul, Republic of Korea), Kim, S.J. (Sogang University, Seoul, Republic of Korea), Kim, S.R. (Sogang University, Seoul, Republic of Korea), E-mail: [e-mail]
• Format: Article
• Language: English
• Subjects: Amino Acid Sequence; Arabidopsis - genetics; Arabidopsis Proteins - metabolism; ARROZ; Base Sequence; CBF1/DREB1b; Cloning, Molecular; Cold; Cold Temperature; Dehydrin Gene; DNA, Complementary - analysis; DROUGHT; ESTRES; Gene Expression Regulation, Plant; Heat-Shock Proteins - genetics; Heat-Shock Proteins - metabolism; Molecular Sequence Data; Oryza - genetics; Oryza - growth & development; Oryza - metabolism; Phylogeny; Plant Proteins - genetics; Plant Proteins - metabolism; Plant Roots - growth & development; Plant Roots - metabolism; Plants, Genetically Modified; RICE; RIZ; SECHERESSE; Seeds - chemistry; Sequence Homology, Amino Acid; SEQUIA; Signal Transduction; STRESS; Temperature; Transcription Factors - metabolism; 생물학
• ISSN: 1016-8478; 0219-1032
• DOI: 10.1016/S1016-8478(23)13158-X

A full-length 1.1 kb cDNA, designated Oryza sativa Dehydrin 1 (OsDhn1), was isolated from the seed coat of rice. The deduced protein is hydrophilic and has three K-type and one S-type motifs (SK₃-type), indicating that OsDhn1 belongs to the acidic dehydrin family, which includes wheat WCOR410 and Arabidopsis COR47. Expression of OsDhn1 was strongly induced by low temperature as well as by drought. Induction of OsDhn1 by cold stress was clearcut in the roots of seedlings and the epidermis of palea and lemma. OsDhn1 was also up-regulated in UBI::CBF1/DREB1b transgenic plants indicating that it is regulated by the CBF/DREB stress signaling pathway.