Jian Yunqing, Liu Zunyong, He Ping, Shan Libo
Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI 48109, USA.
Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI 48109, USA.
Curr Opin Plant Biol. 2024 Dec;82:102623. doi: 10.1016/j.pbi.2024.102623. Epub 2024 Sep 4.
Foliar pathogens exploit natural openings, such as stomata and hydathodes, to invade plants, multiply in the apoplast, and potentially spread through the vasculature. To counteract these threats, plants dynamically regulate stomatal movement and apoplastic water potential, influencing hydathode guttation and water transport. This review highlights recent advances in understanding how phytocytokines, plant small peptides with immunomodulatory functions, regulate these processes to limit pathogen entry and proliferation. Additionally, we discuss the coordinated actions of stomatal movement, hydathode guttation, and the vascular system in restricting pathogen entry, multiplication, and dissemination. We also explore future perspectives and key questions arising from these findings, aiming to advance our knowledge of plant immunity and improve disease resistance strategies.
叶部病原体利用自然开口，如气孔和水孔，侵入植物，在质外体中繁殖，并有可能通过维管系统传播。为了应对这些威胁，植物动态调节气孔运动和质外体水势，影响水孔的吐水作用和水分运输。本综述重点介绍了在理解植物细胞因子（具有免疫调节功能的植物小肽）如何调节这些过程以限制病原体进入和增殖方面的最新进展。此外，我们讨论了气孔运动、水孔吐水作用和维管系统在限制病原体进入、繁殖和传播方面的协同作用。我们还探讨了这些发现带来的未来前景和关键问题，旨在增进我们对植物免疫的了解并改进抗病策略。
