棉 花 学 报 Cotton Science 2007,19(4):304-311
The Signal Transduction Pathways under Low Temperature Mediated by CBF Transcription Factor in Plants Abstract:The physiological mechanism that low temperature injures the plants,the signal transduction pathways in plants induced by low temperature,the structure of CBF and the corresponding CBF expression patterns,and the upstream signal transmitters of CBF,as well as the regulated downstream genes by CBF in plant species,were discussed. It is found that the G-protein,IP3,Ca 2+-dependent CDPKs and the inducer of CBF expression 1 (ICE1) could be the up-regulators of CBF genes. Meanwhile,the expressions of down-regulated genes of CBF,such as the cold responsive genes (COR),RD29A/LTI78 and KIN1,etc. were induced under cold stress condition. The potential values of important CBF genes and the genes regulated by CBF, such as afp fad and des which maybe contribute cold resistance in plants in the creation of cotton cultivars with cold resistance by transgenic approach were evaluated.
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