[Arabidopsis CBF1 in plant tolerance to low temperature and drought stresses].
Since it was established that the alteration in gene expression occur during cold acclimation, a major goal in cold acclimation research has been to identify cold-responsive genes and to determine whether they play roles in freezing tolerance. Many cold-regulated genes (COR) were isolated and characterized in Arabidopsis and other cold tolerant plant species. Studies on regulation of COR in Arabidopsis have resulted in the discovery of a family of transcriptional activators, of which, CBF1, a member of the gene family, controls expression of a battery of COR in Arabidopsis and other cold tolerant plant species. During recent years, CBF-like genes were found in the genomes of chilling-sensitive plant species such as tomato and maize. Over-expression of Arabidopsis CBF1 confers elevated tolerance to chilling and drought stresses in transgenic tomato. These results promote our effort to identify and characterize CBF-like genes to improve tolerance of chilling-sensitive plant species to chilling and drought stresses.
Liu
Fen-Xia
FX
Beijing Agro-biotechnology Research Center, Beijing Academy of Agricultural and Forestry Sciences, Beijing 100 089, China.
Tan
Zhen-Bo
ZB
Zhu
Jian-Qing
JQ
Deng
Xiao-Jian
XJ
D000064:Acclimatization / Q000235:genetics*; D017360:Arabidopsis / Q000235:genetics* / Q000378:metabolism / Q000502:physiology; D029681:Arabidopsis Proteins / Q000235:genetics* / Q000378:metabolism; D003080:Cold Temperature; D004268:DNA-Binding Proteins / Q000235:genetics* / Q000378:metabolism; D004190:Disasters; D005615:Freezing; D018506:Gene Expression Regulation, Plant; D017343:Genes, Plant; D018551:Solanum lycopersicum / Q000235:genetics; D015534:Trans-Activators / Q000235:genetics* / Q000378:metabolism; D003313:Zea mays / Q000235:genetics
D029681:Arabidopsis Proteins; C104387:CBF1 protein, Arabidopsis; D004268:DNA-Binding Proteins; D015534:Trans-Activators