Hromadová Dagmar, Soukup Aleš, Tylová Edita
Department of Experimental Plant Biology, Faculty of Science, Charles University, Prague, Czechia.
Front Plant Sci. 2021 May 17;12:674010. doi: 10.3389/fpls.2021.674010. eCollection 2021.
Responsiveness to environmental conditions and developmental plasticity of root systems are crucial determinants of plant fitness. These processes are interconnected at a cellular level with cell wall properties and cell surface signaling, which involve arabinogalactan proteins (AGPs) as essential components. AGPs are cell-wall localized glycoproteins, often GPI-anchored, which participate in root functions at many levels. They are involved in cell expansion and differentiation, regulation of root growth, interactions with other organisms, and environmental response. Due to the complexity of cell wall functional and regulatory networks, and despite the large amount of experimental data, the exact molecular mechanisms of AGP-action are still largely unknown. This dynamically evolving field of root biology is summarized in the present review.
根系对环境条件的响应能力和发育可塑性是植物适应性的关键决定因素。这些过程在细胞水平上与细胞壁特性和细胞表面信号传导相互关联，其中阿拉伯半乳聚糖蛋白（AGP）是重要组成部分。AGP是细胞壁定位的糖蛋白，通常通过糖基磷脂酰肌醇（GPI）锚定，在多个层面参与根系功能。它们参与细胞扩展和分化、根系生长调节、与其他生物的相互作用以及环境响应。由于细胞壁功能和调控网络的复杂性，尽管有大量实验数据，但AGP作用的确切分子机制仍 largely未知。本综述总结了这个动态发展的根系生物学领域。 （注：“largely”在中文语境中较难找到完全对应的简洁词汇，这里保留英文以便准确传达原文意思）
