共查询到20条相似文献,搜索用时 31 毫秒
1.
2.
3.
4.
5.
6.
7.
Haiyan Jia Shaojun Zhang Meiyu Ruan Yunlong Wang Chongying Wang 《Acta Physiologiae Plantarum》2012,34(4):1239-1250
8.
The conserved Ala37 in the ERF/AP2 domain is essential for binding with the DRE element and the GCC box 总被引:7,自引:0,他引:7
Four AP2/EREBP genes encoding putative ethylene-responsive element binding factor (ERF)/AP2 domains were cloned from Brassica napus, and these genes could be induced by low temperature, ethylene, drought, high salinity, abscisic acid and jasmonate treatments. These four genes, named BnDREBIII-1 to BnDREBIII-4, were highly homologous and the 37th amino acid was the only difference among their ERF/AP2 domains. BnDREBIII-1 was demonstrated to be able to bind to both dehydration-responsive element and the GCC box and transactivate the expression of downstream genes, while BnDREBIII-4 could bind neither. Further results suggested that Ala37 might play a crucial role in the DNA binding or the stability of the ERF/AP2 domain. 相似文献
9.
10.
DNA-binding specificity of the ERF/AP2 domain of Arabidopsis DREBs, transcription factors involved in dehydration- and cold-inducible gene expression. 总被引:58,自引:0,他引:58
Yoh Sakuma Qiang Liu Joseph G Dubouzet Hiroshi Abe Kazuo Shinozaki Kazuko Yamaguchi-Shinozaki 《Biochemical and biophysical research communications》2002,290(3):998-1009
11.
BACKGROUND AND AIMS: It has previously been shown that Arabidopsis thaliana ethylene-responsive element binding protein (AtEBP) contributed to resistance to abiotic stresses. Interestingly, it has also been reported that expression of ethylene-responsive factor (ERF) genes including AtEBP were regulated by the activity of APETALA2 (AP2), a floral homeotic factor. AP2 is known to regulate expression of several floral-specific homeotic genes such as AGAMOUS. The aim of this study was to clarify the relationship between AP2 and AtEBP in gene expression. METHODS: Northern blot analysis was performed on ap2 mutants, ethylene-related Arabidopsis mutants and transgenic Arabidopsis plants over-expressing AtEBP, and a T-DNA insertional mutant of AtEBP. Phenotypic analysis of these plants was performed. KEY RESULTS: Expression levels of ERF genes such as AtEBP and AtERF1 were increased in ap2 mutants. Over-expression of AtEBP caused upregulation of AP2 expression in leaves. AP2 expression was suppressed by the null-function of ethylene-insensitive2 (EIN2), although AP2 expression was not affected by ethylene treatment. Loss of AtEBP function slightly reduced the average number of stamens. CONCLUSIONS: AP2 and AtEBP are mutually regulated in terms of gene expression. AP2 expression was affected by EIN2 but was not regulated by ethylene treatment. 相似文献
12.
OsDREB genes in rice,Oryza sativa L., encode transcription activators that function in drought-, high-salt- and cold-responsive gene expression 总被引:49,自引:0,他引:49
Dubouzet JG Sakuma Y Ito Y Kasuga M Dubouzet EG Miura S Seki M Shinozaki K Yamaguchi-Shinozaki K 《The Plant journal : for cell and molecular biology》2003,33(4):751-763
13.
14.
15.
植物中DREBs类转录因子及其在非生物胁迫中的作用 总被引:3,自引:0,他引:3
低温、干旱、高盐等非生物胁迫能够严重影响植物的生长及作物的产量。最近发现了许多调控多种与逆境相关基因表达的转录因子, 其中DREBs类转录因子能够通过与含有DRE/CRT顺式作用元件的抗逆相关基因启动子区相互作用, 进而调控一系列抗逆基因的表达, 使植物品质得到综合改良从而提高植物对非生物胁迫耐受力。文章通过对DREBs的结构、表达调控、作用方式及机理进行总结, 并结合其在植物胁迫信号通路中的作用以及提高转基因植株胁迫耐受性的最新研究成果加以综述, 并对其在农业生产中的应用前景进行展望。 相似文献
16.
Jill Deikman 《Physiologia plantarum》1997,100(3):561-566
17.
18.
19.
20.