Australian Research Council Centre of Excellence in Plant Energy Biology, School of Molecular Sciences, University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia.
J Exp Bot. 2023 Aug 17;74(15):4308-4323. doi: 10.1093/jxb/erad179.
Abiotic stresses such as drought and heat continue to impact crop production in a warming world. This review distinguishes seven inherent capacities that enable plants to respond to abiotic stresses and continue growing, although at a reduced rate, to achieve a productive yield. These are the capacities to selectively take up essential resources, store them and supply them to different plant parts, generate the energy required for cellular functions, conduct repairs to maintain plant tissues, communicate between plant parts, manage existing structural assets in the face of changed circumstances, and shape-shift through development to be efficient in different environments. By illustration, we show how all seven plant capacities are important for reproductive success of major crop species during drought, salinity, temperature extremes, flooding, and nutrient stress. Confusion about the term 'oxidative stress' is explained. This allows us to focus on the strategies that enhance plant adaptation by identifying key responses that can be targets for plant breeding.
非生物胁迫，如干旱和热胁迫，继续影响着全球变暖背景下的作物生产。本综述区分了植物应对非生物胁迫并继续生长的七种固有能力，尽管生长速度会降低，但仍能实现有生产力的产量。这些能力包括选择性地吸收必需的资源、储存这些资源并将其供应给不同的植物部位、产生细胞功能所需的能量、进行修复以维持植物组织、在不同部位之间进行通讯、在面对变化的环境时管理现有的结构资产，以及通过发育进行形态转变以在不同环境中高效生长。通过举例，我们展示了在干旱、盐胁迫、极端温度、洪涝和养分胁迫下，这七种植物能力对主要作物物种生殖成功的重要性。我们还解释了术语“氧化胁迫”的混淆，这使我们能够通过确定可以作为植物育种目标的关键响应来关注增强植物适应的策略。
