Moulick Debojyoti, Bhutia Karma Landup, Sarkar Sukamal, Roy Anirban, Mishra Udit Nandan, Pramanick Biswajit, Maitra Sagar, Shankar Tanmoy, Hazra Swati, Skalicky Milan, Brestic Marian, Barek Viliam, Hossain Akbar
Department of Environmental Science, University of Kalyani, Nadia, West Bengal, India.
Department of Agricultural Biotechnology & Molecular Breeding, College of Basic Science and Humanities, Dr. Rajendra Prasad Central Agricultural University, Samastipur, India.
Front Plant Sci. 2023 Jan 4;13:1083960. doi: 10.3389/fpls.2022.1083960. eCollection 2022.
Environmental stresses such as drought, high salinity, and low temperature can adversely modulate the field crop's ability by altering the morphological, physiological, and biochemical processes of the plants. It is estimated that about 50% + of the productivity of several crops is limited due to various types of abiotic stresses either presence alone or in combination (s). However, there are two ways plants can survive against these abiotic stresses; a) through management practices and b) through adaptive mechanisms to tolerate plants. These adaptive mechanisms of tolerant plants are mostly linked to their signalling transduction pathway, triggering the action of plant transcription factors and controlling the expression of various stress-regulated genes. In recent times, several studies found that Zn-finger motifs have a significant function during abiotic stress response in plants. In the first report, a wide range of Zn-binding motifs has been recognized and termed Zn-fingers. Since the zinc finger motifs regulate the function of stress-responsive genes. The Zn-finger was first reported as a repeated Zn-binding motif, comprising conserved cysteine (Cys) and histidine (His) ligands, in oocytes as a transcription factor (TF) IIIA (or TFIIIA). In the proteins where Zn is mainly attached to amino acid residues and thus espousing a tetrahedral coordination geometry. The physical nature of Zn-proteins, defining the attraction of Zn-proteins for Zn, is crucial for having an in-depth knowledge of how a Zn facilitates their characteristic function and how proteins control its mobility (intra and intercellular) as well as cellular availability. The current review summarized the concept, importance and mechanisms of Zn-finger motifs during abiotic stress response in plants.
干旱、高盐度和低温等环境胁迫会通过改变植物的形态、生理和生化过程，对大田作物的能力产生不利影响。据估计，几种作物约50%以上的生产力因各种非生物胁迫单独或组合存在而受到限制。然而，植物有两种方式可以在这些非生物胁迫下存活：a）通过管理措施；b）通过植物的适应机制。耐逆植物的这些适应机制大多与其信号转导途径相关，触发植物转录因子的作用并控制各种胁迫调节基因的表达。近年来，多项研究发现锌指基序在植物非生物胁迫响应过程中具有重要作用。在第一篇报告中，人们识别出了多种锌结合基序并将其称为锌指。由于锌指基序调节胁迫响应基因的功能。锌指最早是在卵母细胞中作为转录因子IIIA（或TFIIIA）被报道为一种重复的锌结合基序，由保守的半胱氨酸（Cys）和组氨酸（His）配体组成。在锌主要与氨基酸残基结合从而形成四面体配位几何结构的蛋白质中。锌蛋白的物理性质决定了锌蛋白对锌的吸引力，对于深入了解锌如何促进其特征功能以及蛋白质如何控制其移动性（细胞内和细胞间）以及细胞可用性至关重要。本综述总结了锌指基序在植物非生物胁迫响应过程中的概念、重要性和机制。
