Zhang Yuwei, Feng Huan, Druzhinina Irina S, Xie Xianan, Wang Ertao, Martin Francis, Yuan Zhilin
State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing 10091, China; Nanjing Forestry University, Nanjing 210037, China; Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China.
National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, SIBS, Chinese Academy of Sciences, Shanghai 200032, China.
Trends Microbiol. 2024 Feb;32(2):200-215. doi: 10.1016/j.tim.2023.08.005. Epub 2023 Sep 8.
Establishing mutualistic relationships between plants and fungi is crucial for overcoming nutrient deficiencies in plants. This review highlights the intricate nutrient sensing and uptake mechanisms used by plants in response to phosphate and nitrogen starvation, as well as their interactions with plant immunity. The coordination of transport systems in both host plants and fungal partners ensures efficient nutrient uptake and assimilation, contributing to the long-term maintenance of these mutualistic associations. It is also essential to understand the distinct responses of fungal partners to external nutrient levels and forms, as they significantly impact the outcomes of symbiotic interactions. Our review also highlights the importance of evolutionarily younger and newly discovered root-fungus associations, such as endophytic associations, which offer potential benefits for improving plant nutrition. Mechanistic insights into the complex dynamics of phosphorus and nitrogen sensing within diverse root-fungus associations can facilitate the identification of molecular targets for engineering symbiotic systems and developing plant phenotypes with enhanced nutrient use efficiency. Ultimately, this knowledge can inform tailored fertilizer management practices to optimize plant nutrition.
在植物与真菌之间建立共生关系对于克服植物的养分缺乏至关重要。本综述强调了植物在应对磷和氮饥饿时所采用的复杂养分感知和吸收机制，以及它们与植物免疫的相互作用。宿主植物和真菌伙伴中运输系统的协调确保了养分的有效吸收和同化，有助于这些共生关系的长期维持。了解真菌伙伴对外部养分水平和形态的不同反应也很重要，因为它们会显著影响共生相互作用的结果。我们的综述还强调了进化上较年轻和新发现的根真菌关联（如内生关联）的重要性，这些关联为改善植物营养提供了潜在益处。对不同根真菌关联中磷和氮感知复杂动态的机制性见解有助于确定用于工程共生系统和开发具有更高养分利用效率的植物表型的分子靶点。最终，这些知识可为定制肥料管理实践提供参考，以优化植物营养。
