Department of Botany, University of Agriculture, Faisalabad, Pakistan.
Department of Botany, The Islamia University of Bahawalpur, Bahawalpur, Pakistan.
Funct Integr Genomics. 2023 Aug 29;23(3):283. doi: 10.1007/s10142-023-01202-0.
Enhancing the resilience of plants to abiotic stresses, such as drought, salinity, heat, and cold, is crucial for ensuring global food security challenge in the context of climate change. The adverse effects of climate change, characterized by rising temperatures, shifting rainfall patterns, and increased frequency of extreme weather events, pose significant threats to agricultural systems worldwide. Genetic modification strategies offer promising approaches to develop crops with improved abiotic stress tolerance. This review article provides a comprehensive overview of various genetic modification techniques employed to enhance plant resilience. These strategies include the introduction of stress-responsive genes, transcription factors, and regulatory elements to enhance stress signaling pathways. Additionally, the manipulation of hormone signaling pathways, osmoprotectant accumulation, and antioxidant defense mechanisms is discussed. The use of genome editing tools, such as CRISPR-Cas9, for precise modification of target genes related to stress tolerance is also explored. Furthermore, the challenges and future prospects of genetic modification for abiotic stress tolerance are highlighted. Understanding and harnessing the potential of genetic modification strategies can contribute to the development of resilient crop varieties capable of withstanding adverse environmental conditions caused by climate change, thereby ensuring sustainable agricultural productivity and food security.
提高植物对非生物胁迫的适应能力,如干旱、盐度、高温和低温,对于应对气候变化背景下的全球粮食安全挑战至关重要。气候变化的不利影响,包括气温升高、降雨模式变化和极端天气事件频率增加,对全球农业系统构成了重大威胁。遗传修饰策略为开发具有增强的非生物胁迫耐受性的作物提供了有前途的方法。本文综述了各种遗传修饰技术,以提高植物的抗逆性。这些策略包括引入应激响应基因、转录因子和调节元件,以增强应激信号通路。此外,还讨论了激素信号通路、渗透保护剂积累和抗氧化防御机制的操纵。还探讨了使用基因组编辑工具,如 CRISPR-Cas9,对与耐应激相关的靶基因进行精确修饰。此外,还强调了遗传修饰在非生物胁迫耐受性方面的挑战和未来前景。了解和利用遗传修饰策略的潜力,可以有助于开发能够耐受气候变化引起的不利环境条件的抗逆作物品种,从而确保可持续的农业生产力和粮食安全。