Characterization of an abiotic stress-inducible dehydrin gene, OsDhn1, in rice (Oryza sativa L.).
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.
Lee
Sang-Choon
SC
Department of Life Science, Sogang University, Seoul 121-742, Korea.
Lee
Mi-Yeon
MY
Kim
Soo-Jin
SJ
Jun
Sung-Hoon
SH
An
Gynheung
G
Kim
Seong-Ryong
SR
D000595:Amino Acid Sequence; D017360:Arabidopsis / Q000235:genetics; D029681:Arabidopsis Proteins / Q000378:metabolism; D001483:Base Sequence; D003001:Cloning, Molecular; D003080:Cold Temperature; D018076:DNA, Complementary / Q000032:analysis*; D018506:Gene Expression Regulation, Plant; D006360:Heat-Shock Proteins / Q000235:genetics* / Q000378:metabolism; D008969:Molecular Sequence Data; D012275:Oryza / Q000235:genetics* / Q000254:growth & development / Q000378:metabolism; D010802:Phylogeny; D010940:Plant Proteins / Q000235:genetics* / Q000378:metabolism; D018517:Plant Roots / Q000254:growth & development / Q000378:metabolism; D030821:Plants, Genetically Modified; D012639:Seeds / Q000737:chemistry*; D017386:Sequence Homology, Amino Acid; D015398:Signal Transduction; D013696:Temperature; D014157:Transcription Factors / Q000378:metabolism
D029681:Arabidopsis Proteins; D018076:DNA, Complementary; C114578:DREB1A protein, Arabidopsis; D006360:Heat-Shock Proteins; D010940:Plant Proteins; D014157:Transcription Factors; C070556:dehydrin proteins, plant