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Author Mallikarjuna G., Mallikarjuna K., Reddy M.K., Kaul T.
Title Expression of OsDREB2A transcription factor confers enhanced dehydration and salt stress tolerance in rice (Oryza sativa L.)
Stress responsive transcriptional regulation is an adaptive strategy of plants that alleviates the adverse effects of environmental stresses. The ectopic overexpression of Dehydration-Responsive Element Binding transcription factors (DREBs) either in homologous or in heterologous plants improved stress tolerance indicating the DRE/DREB regulon is conserved across plants. We developed 30 transgenic T0 rice plants overexpressing OsDREB2A which were devoid of any growth penalty or phenotypic abnormalities during stressed or non-stressed conditions. Integration of T-DNA in the rice genome and stress inducible overexpression of OsDREB2A had occurred in these transgenic lines. Functional analyses of T1-3 and T1-10 lines revealed significant tolerance to osmotic, salt and dehydration stresses during simulated stress conditions with enhanced growth performance as compared to wild type. OsDREB2A, thus, confers stress tolerance in homologous rice system that failed in the heterologous Arabidopsis system earlier. 諱ッ 2011 Springer Science+Business Media B.V.
Journal Biotechnology letters
Country India
Volume 33
Pages 1689-1697
Year 2011
PubMed ID 21528404
PubMed Central ID -
Gene DREB2A _
Strain Wild Core Collection -
Induced Mutation Lines(NIG Collection) -
Sterile Seed Strain -
Lethal Embryo
Mutantion Strain
Stages in Each Organ
- Muant Lines (Gene)
Cultivated Varieties(NIG Collection) -
Stages in Each Organ -