RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, 230-0045Japan.
Institute of Plant Science and Resources, Okayama University, 2-20-1 Chuo, Kurashiki, 710-0046Japan.
Plant Physiol. 2024 Apr 30;195(1):170-189. doi: 10.1093/plphys/kiae105.
Drought and cold represent distinct types of abiotic stress, each initiating unique primary signaling pathways in response to dehydration and temperature changes, respectively. However, a convergence at the gene regulatory level is observed where a common set of stress-responsive genes is activated to mitigate the impacts of both stresses. In this review, we explore these intricate regulatory networks, illustrating how plants coordinate distinct stress signals into a collective transcriptional strategy. We delve into the molecular mechanisms of stress perception, stress signaling, and the activation of gene regulatory pathways, with a focus on insights gained from model species. By elucidating both the shared and distinct aspects of plant responses to drought and cold, we provide insight into the adaptive strategies of plants, paving the way for the engineering of stress-resilient crop varieties that can withstand a changing climate.
干旱和寒冷分别代表了两种不同的非生物胁迫类型,它们分别通过独特的初级信号通路来响应脱水和温度变化。然而,在基因调控水平上观察到了一种收敛,其中一组共同的应激响应基因被激活,以减轻这两种胁迫的影响。在这篇综述中,我们探讨了这些错综复杂的调控网络,说明了植物如何将不同的应激信号协调为一个共同的转录策略。我们深入研究了应激感知、应激信号和基因调控途径的激活的分子机制,重点关注从模式物种中获得的见解。通过阐明植物对干旱和寒冷的反应的共同和独特方面,我们深入了解了植物的适应策略,为工程设计能够抵御气候变化的抗应激作物品种铺平了道路。