Shandong Provincial Key Laboratory of Plant Stress Research, College of Life Sciences, Shandong Normal University, Shandong 250014, China.
Dongying Institute, Shandong Normal University, Dongying 257000, China.
J Agric Food Chem. 2023 Jun 28;71(25):9573-9598. doi: 10.1021/acs.jafc.2c07741. Epub 2023 Jun 14.
Root hairs tie the root system to the soil substrate, facilitate water and nutrient absorption, and enable the interaction with microbes in the soil. Root hair development can be classified into three main development types (I-III). Root hair development type III has been extensively studied, mainly represented using the model plant . Transcription factors, plant hormones, and proteins are involved at different root hair developmental stages. The mechanisms underlying development in types I and II have been examined using other representative plant species but have not been studied as intensively. Many key developmental genes in types I and II are highly homologous with those in type III, exhibiting conservation of related mechanisms. Root hairs are also involved in the regulation of plant response to abiotic stress by altering developmental patterns. Abiotic stress, regulatory genes, and plant hormones jointly regulate root hair development and growth; however, few studies have focused on how root hair recognizes abiotic stress signals. This review examines the molecular mechanisms of root hair development and adaptations under stress, and prospective future developments in root hair research are also discussed.
根毛将根系与土壤基质联系起来，促进水分和养分的吸收，并使根系与土壤中的微生物相互作用。根毛的发育可以分为三种主要的发育类型（I-III）。根毛发育类型 III 已经得到了广泛的研究，主要以模式植物 为代表。在不同的根毛发育阶段涉及转录因子、植物激素和蛋白质。使用其他代表性植物物种研究了类型 I 和 II 的发育机制，但研究并不深入。类型 I 和 II 中的许多关键发育基因与类型 III 中的基因高度同源，表现出相关机制的保守性。根毛还通过改变发育模式参与调节植物对非生物胁迫的反应。非生物胁迫、调节基因和植物激素共同调节根毛的发育和生长；然而，很少有研究关注根毛如何识别非生物胁迫信号。本文综述了根毛发育和胁迫适应的分子机制，并讨论了根毛研究的未来发展方向。
