Title of article :
A novel tomato MYC-type ICE1-like transcription factor, SlICE1a, confers cold, osmotic and salt tolerance in transgenic tobacco
Author/Authors :
Feng، نويسنده , , Hailong and Ma، نويسنده , , Na-Na and Meng، نويسنده , , Xia and Zhang، نويسنده , , Song and Wang، نويسنده , , Jie-Ru and Chai، نويسنده , , Sen and Meng، نويسنده , , Qing-Wei، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2013
Abstract :
ICE1 (inducer of CBF expression 1), a MYC-type bHLH transcription factor, is an important activator of CBF3/DREB1A for regulating cold signaling and stress tolerance. In this study, we isolated the novel ICE1-like gene SlICE1a from tomato which contains the conserved bHLH domain, an S-rich motif, and ACT-domain. It is localized in the nucleus and harbors transcription-activating activity in the N-terminal. In addition, the SlICE1a transcript is slightly upregulated by cold stress, salt stress, and osmotic stress. SlICE1a overexpression in tobacco enhances the induction of CBF/DREB and their target genes, consequently increasing the levels of proline, soluble sugars, and late embryogenesis abundant (LEA) proteins, and enhancing tolerance to cold stress, osmotic stress, and salt stress. SlICE1a functions in abiotic stress responses by regulating the expression of stress-tolerant genes, and is thus beneficial for crop improvement.
Keywords :
Inducer of CBF expression 1a , Tomato , Transgenic tobacco , abiotic stress , Expression pattern , Transcription factor
Journal title :
Plant Physiology and Biochemistry
Journal title :
Plant Physiology and Biochemistry