Institute of Plant Sciences, Agricultural Research Organization, Volcani Center, Rishon LeZion 7505101, Israel.
Department of Postharvest Science of Fresh Produce, Agricultural Research Organization, Volcani Center, Rishon LeZion 7505101, Israel.
Int J Mol Sci. 2021 Aug 24;22(17):9108. doi: 10.3390/ijms22179108.
Metabolic regulation is the key mechanism implicated in plants maintaining cell osmotic potential under drought stress. Understanding drought stress tolerance in plants will have a significant impact on food security in the face of increasingly harsh climatic conditions. Plant primary and secondary metabolites and metabolic genes are key factors in drought tolerance through their involvement in diverse metabolic pathways. Physio-biochemical and molecular strategies involved in plant tolerance mechanisms could be exploited to increase plant survival under drought stress. This review summarizes the most updated findings on primary and secondary metabolites involved in drought stress. We also examine the application of useful metabolic genes and their molecular responses to drought tolerance in plants and discuss possible strategies to help plants to counteract unfavorable drought periods.
代谢调控是植物在干旱胁迫下维持细胞渗透势的关键机制。了解植物的耐旱性将对在日益恶劣的气候条件下保障粮食安全产生重大影响。植物的初级和次级代谢物以及代谢基因是耐旱性的关键因素，因为它们参与了多种代谢途径。植物耐受机制中涉及的生理生化和分子策略可以被利用来提高植物在干旱胁迫下的存活率。本综述总结了与干旱胁迫相关的初级和次级代谢物的最新发现。我们还研究了有用的代谢基因在植物耐旱性中的应用及其对干旱胁迫的分子响应，并讨论了帮助植物对抗不利干旱期的可能策略。
