Renau-Morata Begoña, Carrillo Laura, Dominguez-Figueroa Jose, Vicente-Carbajosa Jesús, Molina Rosa V, Nebauer Sergio G, Medina Joaquín
Departamento de Producción Vegetal, Universitat Politécnica de Valencia, Camino de Vera s/n, Valencia, Spain.
Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM) - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus de Montegancedo, Autopista M40 (km 38), Madrid, Spain.
J Exp Bot. 2020 Jun 26;71(13):3803-3815. doi: 10.1093/jxb/eraa088.
In terrestrial environments, water and nutrient availabilities and temperature conditions are highly variable, and especially in extreme environments limit survival, growth, and reproduction of plants. To sustain growth and maintain cell integrity under unfavourable environmental conditions, plants have developed a variety of biochemical and physiological mechanisms, orchestrated by a large set of stress-responsive genes and a complex network of transcription factors. Recently, cycling DOF factors (CDFs), a group of plant-specific transcription factors (TFs), were identified as components of the transcriptional regulatory networks involved in the control of abiotic stress responses. The majority of the members of this TF family are activated in response to a wide range of adverse environmental conditions in different plant species. CDFs regulate different aspects of plant growth and development such as photoperiodic flowering-time control and root and shoot growth. While most of the functional characterization of CDFs has been reported in Arabidopsis, recent data suggest that their diverse roles extend to other plant species. In this review, we integrate information related to structure and functions of CDFs in plants, with special emphasis on their role in plant responses to adverse environmental conditions.
在陆地环境中，水、养分的可利用性以及温度条件变化很大，尤其是在极端环境下，会限制植物的生存、生长和繁殖。为了在不利的环境条件下维持生长并保持细胞完整性，植物已经进化出了多种生化和生理机制，这些机制由大量应激反应基因和复杂的转录因子网络协调控制。最近，循环DOF因子（CDF），一组植物特异性转录因子（TF），被确定为参与非生物胁迫反应调控的转录调控网络的组成部分。该转录因子家族的大多数成员在不同植物物种中对多种不利环境条件作出反应时被激活。CDF调节植物生长和发育的不同方面，如光周期开花时间控制以及根和茎的生长。虽然关于CDF的大多数功能特性研究是在拟南芥中报道的，但最近的数据表明它们的多种作用也扩展到了其他植物物种。在这篇综述中，我们整合了与植物中CDF的结构和功能相关的信息，特别强调了它们在植物对不利环境条件反应中的作用。
