WRKY71 Acts Antagonistically Against Salt-Delayed Flowering in Arabidopsis thaliana
WRKY71 Acts Antagonistically Against Salt-Delayed Flowering in Arabidopsis thaliana
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WRKY71 对抗拟南芥盐延迟开花
DOI：
10.1093/pcp/pcx201
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发表时间：
2018-02
影响因子：
4.9
通讯作者：
Xiang Fengning
中科院分区：
文献类型：
--
作者：
Yu Yanchong;Wang Long;Chen Jiacai;Liu Zhenhua;Park Chung-Mo;Xiang Fengning
土壤盐分影响植物生长发育的各个方面，包括开花。通常，植物在高盐条件下表现出延迟开花表型，而有些植物会冒着生命危险继续生长，从而逃避严重的盐胁迫，实现繁殖成功。然而，逃逸策略的分子机制尚不清楚。在这项工作中，我们报道了转录因子WRKY71帮助拟南芥逃避盐胁迫。WRKY71野生型（WT）等位基因的表达受盐度诱导。与Col-0相比，高盐胁迫导致激活标记突变体WRKY71-1D的开花时间只有轻微延迟。然而，在高盐度条件下，基于RNA干扰（RNAi）的多重WRKY敲除突变体（w71w8 + 28RNAi）的开花时间明显晚于WT。与此同时，WRKY71-1D中开花位点T （FT）和叶片（LFY）的表达量高于WT， w71w8 + 28RNAi的表达量低于WT。这表明WRKY71的活性促进了开花，从而为植物在盐胁迫下完成其生命周期提供了一种手段。
Soil salinity affects various aspects of plant growth and development including flowering. Usually, plants show a delayed flowering phenotype under high salinity conditions, whereas some plants will risk their life to continue to grow, thereby escaping serious salt stress to achieve reproductive success. However, the molecular mechanisms of the escape strategies are not clear yet. In this work, we report that the transcription factor WRKY71 helps escape salt stress in Arabidopsis. The expression of the WRKY71 wild-type (WT) allele was salinity inducible. Compared with Col-0, high salt stress caused only a marginal delay in the flowering time of the activation-tagged mutant WRKY71-1D. However, flowering in the RNA interference (RNAi)-based multiple WRKY knock-out mutant (w71w8 + 28RNAi) was dramatically later than in the WT under high salinity conditions. Meanwhile, expression of FLOWERING LOCUS T (FT) and LEAFY (LFY) was greater in WRKY71-1D than in the WT, and lower in w71w8 + 28RNAi under salinity-stressed conditions. The suggestion is that WRKY71 activity hastens flowering, thereby providing a means for the plant to complete its life cycle in the presence of salt stress.
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影响因子：
7.2
作者：
Hu, Yanru;Chen, Ligang;Yu, Diqiu
通讯作者：
Yu, Diqiu
影响因子：
7.4
作者：
Riboni, Matteo;Galbiati, Massimo;Conti, Lucio
通讯作者：
Conti, Lucio
ABO3 是一种 WRKY 转录因子，介导拟南芥植物对脱落酸的反应和耐旱性。
DOI：
10.1111/j.1365-313x.2010.04248.x
发表时间：
2010-08
期刊：
The Plant journal : for cell and molecular biology
影响因子：
--
作者：
Ren X;Chen Z;Liu Y;Zhang H;Zhang M;Liu Q;Hong X;Zhu JK;Gong Z
通讯作者：
Gong Z
影响因子：
7.4
作者：
Korves, TM;Bergelson, J
通讯作者：
Bergelson, J
DOI：
10.1007/978-1-61779-986-0
发表时间：
2012
期刊：
--
影响因子：
--
作者：
S. Shabala;T. Cuin
通讯作者：
S. Shabala;T. Cuin