Graduate Program in Biotechnology, Center for Technological Development, Federal University of Pelotas, Pelotas-RS, Brazil; Plant Genomics and Breeding Center, Eliseu Maciel School of Agronomy, Federal University of Pelotas, Pelotas-RS, Brazil.
Plant Genomics and Breeding Center, Eliseu Maciel School of Agronomy, Federal University of Pelotas, Pelotas-RS, Brazil.
Curr Opin Plant Biol. 2018 Oct;45(Pt B):268-275. doi: 10.1016/j.pbi.2018.07.007. Epub 2018 Jul 27.
Rice WRKYs comprise a large family of transcription factors and present remarkable structure features and a unique DNA binding site. Their importance in plants goes beyond the response to stressful stimuli, since they participate in hormonal pathways and developmental processes. Indeed, the majority of WRKYs present an independent activation since they are able to perform self-transcriptional regulation. However, some WRKY activation depends on epigenetic and transcript regulation by micro RNAs. Their protein function depends, almost always, on the posttranslational changes. Taking to account its properties of auto-activation, all these regulators process are extremely important for complete WRKY regulation. In this sense, here we provide an overview of transcriptional activation and posttranscriptional and posttranslational regulation of rice WRKY genes under stresses.
水稻 WRKY 转录因子家族庞大，具有显著的结构特征和独特的 DNA 结合位点。它们在植物中的重要性不仅在于对胁迫刺激的反应，还在于它们参与激素途径和发育过程。事实上，由于大多数 WRKY 转录因子能够进行自我转录调控，因此它们具有独立的激活能力。然而，一些 WRKY 的激活依赖于 miRNA 的表观遗传和转录调控。它们的蛋白质功能几乎总是依赖于翻译后的变化。考虑到自身激活的特性，这些调节过程对于完整的 WRKY 调节至关重要。在这方面，我们综述了水稻 WRKY 基因在胁迫下的转录激活以及转录后和翻译后调控。
