Each year, abiotic stress conditions such as drought, heat, salinity, cold and particularly their different combinations, inflict a heavy toll on crop productivity worldwide. The effects of these adverse conditions on plant productivity are becoming ever more alarming in recent years in light of the increased rate and intensity of global climatic changes. Improving crop tolerance to abiotic stress conditions requires a deep understanding of the response of plants to changes in their environment. This response is dependent on early and late signal transduction events that involve important signaling molecules such as reactive oxygen species (ROS), different plant hormones and other signaling molecules. It is the integration of these signaling events, mediated by an interplay between ROS and different plant hormones that orchestrates the plant response to abiotic stress and drive changes in transcriptomic, metabolic and proteomic networks that lead to plant acclimation and survival. Here we review some of the different studies that address hormone and ROS integration during the response of plants to abiotic stress. We further highlight the integration of ROS and hormone signaling during early and late phases of the plant response to abiotic stress, the key role of respiratory burst oxidase homologs in the integration of ROS and hormone signaling during these phases, and the involvement of hormone and ROS in systemic signaling events that lead to systemic acquired acclimation. Lastly, we underscore the need to understand the complex interactions that occur between ROS and different plant hormones during stress combinations.

中文翻译：

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非生物胁迫期间活性氧和激素信号的整合

每年，非生物胁迫条件，例如干旱，高温，盐分，寒冷，尤其是它们的不同组合，给全世界的农作物生产力造成了沉重的损失。鉴于全球气候变化的速度和强度不断提高，近年来这些不利条件对植物生产力的影响变得越来越令人震惊。提高农作物对非生物胁迫条件的耐受性，需要深刻理解植物对环境变化的反应。此响应取决于早期和晚期信号转导事件，这些事件涉及重要的信号分子，例如活性氧（ROS），不同的植物激素和其他信号分子。这些信号事件的整合，ROS与不同植物激素之间的相互作用介导，这些激素协调植物对非生物胁迫的响应并推动转录，代谢和蛋白质组网络的变化，从而导致植物适应环境和生存。在这里，我们回顾一些不同的研究，这些研究针对植物对非生物胁迫的响应过程中的激素和ROS整合。我们进一步强调了在植物对非生物胁迫的响应的早期和晚期，ROS和激素信号的整合，在这些阶段呼吸爆发氧化酶同系物在ROS和激素信号的整合中的关键作用，以及激素和ROS的参与在导致全身性适应的全身性信号事件中发生。最后，