Arabidopsis Transcriptional Activators CBF1, CBF2, and CBF3 have Matching Functional Activities

被引:0
作者
Sarah J. Gilmour
Sarah G. Fowler
Michael F. Thomashow
机构
[1] Michigan State University,MSU
来源
Plant Molecular Biology | 2004年 / 54卷
关键词
Arabidopsis; CBF/DREB1 transcription factors; cold acclimation; freezing tolerance; transcript profiling;
D O I
暂无
中图分类号
学科分类号
摘要
When Arabidopsis is exposed to low temperature a small gene family encoding transcription factors known as CBF1, CBF2, and CBF3 (also referred to as DREB1b, DREB1c, and DREB1a, respectively) is rapidly induced followed by expression of CBF-targeted genes, the CBF regulon, which act to bring about an increase in freezing tolerance. The CBF1, 2 and 3 proteins, though highly similar in amino acid sequence, are not identical, raising the question of whether the proteins have the same functions. Here we explored this issue by comparing the effects that overexpression of each CBF gene had on Arabidopsis growth and development, proline and sugar composition, freezing tolerance and gene expression. Taken together, the results support the conclusion that the CBF1, 2 and 3 transcriptional activators have redundant functional activities.
引用
收藏
页码:767 / 781
页数:14
相关论文
共 42 条
[41]   Brassica rapa BrICE1 and BrICE2 Positively Regulate the Cold Tolerance via CBF and ROS Pathways, Balancing Growth and Defense in Transgenic Arabidopsis [J].
Wu, Wangze ;
Yang, Haobo ;
Xing, Peng ;
Zhu, Guoting ;
Han, Xueyan ;
Xue, Mei ;
Min, Guotai ;
Ding, Haijun ;
Wu, Guofan ;
Liu, Zigang .
PLANTS-BASEL, 2024, 13 (18)
[42]   Isolation and Functional Analysis of MbCBF2, a Malus baccata (L.) Borkh CBF Transcription Factor Gene, with Functions in Tolerance to Cold and Salt Stress in Transgenic Arabidopsis thaliana [J].
Li, Xingguo ;
Liang, Xiaoqi ;
Li, Wenhui ;
Yao, Anqi ;
Liu, Wanda ;
Wang, Yu ;
Yang, Guohui ;
Han, Deguo .
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES, 2022, 23 (17)