Stomatal immunity
Stomatal immunity
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气孔免疫
DOI：
10.1002/9780470015902.a0028342
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Yun-Kuan Liang
中科院分区：
文献类型：
--
作者：
Dae Sung Kim;Yun-Kuan Liang
长期以来，气孔一直被认为是病原微生物进入的被动门户，可能导致严重的农作物损失和食物中毒；然而，越来越多的证据表明，气孔具有重要的免疫功能。植物在识别出入侵的病原体后会主动关闭气孔以避免发病。气孔免疫始于表面定位模式识别受体对病原体相关分子模式的感知，并激活需要植物激素、活性氧（ROS）产生、离子流和基因表达来触发气孔关闭的信号级联。然而，植物与病原体之间的军备竞赛驱使病原微生物不断进化出新的策略和效应器组合，作为操纵气孔运动以谋取自身利益的对策。保卫细胞代谢组、生物钟调节基因和气候相关因素的变化可以通过气孔调节影响植物防御。了解气孔免疫在对抗病原体、提高农业能力和食品安全方面具有广泛的应用。 eLS 学科领域：植物科学
Stomata have long been assumed as passive portals of entry for pathogenic microorganisms, which may cause severe crop loss and food poisoning; however, accumulating evidence suggests that stomata have an important immune function. Plants actively close their stomata upon recognition of invading pathogens to stave off pathogenesis. Stomatal immunity starts from the perception of pathogen-associated molecular patterns by surface-localised pattern recognition receptors and activating a signalling cascade that requires plant hormones, reactive oxygen species (ROS) production, ion flux and gene expression to trigger stomatal closure. However, the arms race between plants and pathogens has driven the pathogenic microbes to constantly evolve new strategies and effector combinations as a countermeasure to manipulate stomatal movement for their own benefit. Changes in the guard cell metabolome, circadian clock regulating genes and climate-related factors can impact plant defence through stomatal regulation. Understanding stomatal immunity has broad applications in combating pathogens, enhancing agricultural capacity and food safety. eLS subject area: Plant Science