Journal
BMB REPORTS
Volume 42, Issue 8, Pages 486-492Publisher
KOREAN SOCIETY BIOCHEMISTRY & MOLECULAR BIOLOGY
DOI: 10.5483/BMBRep.2009.42.8.486
Keywords
Abiotic stress; Arabidopsis; DREB-type transcription factors; Rice; Transgenic plants
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Funding
- Jiangsu Natural foundation [BK2007080]
- 863 Program [2006AA10Z117, 2006AA06Z358, 2008AA10Z401]
- Shanghai Rising-Star Program [08QH14021]
- National and Shanghai Natural Science Foundation [30670179, 08ZR1417200]
- International Scientific and Technological Cooperation (Shanghai-Alberta) [08540706500]
- Shanghai Municipal Committee of Agriculture [2008-7-5]
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OsDREB1D, a special DREB (dehydration responsive element binding protein) homologous gene, whose transcripts cannot be detected in rice (Oryza saliva L), either with or without stress treatments, was amplified from the rice genome DNA. The yeast one-hybrid assay revealed that OsDREB1D was able to form a complex with the dehydration responsive element/C-repeat motif. It can also bind with a sequence of LTRE (low temperature responsive element). To analyze the function of OsDREB1D, the gene was transformed and over-expressed in Arabidopsis thaliana cv. Columbia. Results indicated that the over-expression of OsDREB1D conferred cold and high-salt tolerance in transgenic plants, and that transgenic plants were also insensitive to ABA (abscisic acid). From these data, we deduced that this OsDREB1D gene functions similarly as other DREB transcription factors. The expression of OsDREB1D in rice may be controlled by a special mechanism for the redundancy of function. [BMB reports 2009; 42(8): 486-492]
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