Phytohormones, miRNAs, and peptide signals integrate plant phosphorus status with arbuscular mycorrhizal symbiosis.
Phytohormones, miRNAs, and peptide signals integrate plant phosphorus status with arbuscular mycorrhizal symbiosis.
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DOI：
10.1016/j.pbi.2019.05.004
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发表时间：
2019-08
影响因子：
9.5
通讯作者：
L. Müller;M. Harrison
中科院分区：
文献类型：
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作者：
L. Müller;M. Harrison
亮点复杂的细胞间和器官间通讯网络使植物能够整合其营养和共生状态。植物激素将磷状态与丛枝菌根共生的启动、发育和维持相结合。微小RNA局部和系统地调节丛枝菌根共生，并将其与磷状态联系起来。分泌肽及其受体构成部分营养独立的自动调节途径的组成部分。大多数陆地植物物种与丛枝菌根真菌进行有益的相互作用，以增加矿物质养分的获取，特别是主要的大量营养素磷（P）。共生的启动、发展和维持很大程度上受宿主植物的控制，并受到植物磷状态的强烈影响。最近的进展表明，植物激素、微小RNA和分泌肽都调节丛枝菌根（AM）共生的发育并将其与植物的P状态整合起来。这是通过复杂的多层信号网络发生的，其中磷酸盐 (Pi) 饥饿信号通路和 AM 共生信号之间存在串扰，并且还通过对 AM 真菌共生体的直接影响来发生。多个检查点允许植物根据其 P 状态微调共生。
HighlightsComplex cell-to-cell and organ-to-organ communication networks allow plants to integrate their nutritional and symbiotic status.Phytohormones integrate phosphorus status with initiation, development, and maintenance of arbuscular mycorrhizal symbiosis.MicroRNAs regulate arbuscular mycorrhizal symbiosis locally and systemically, and link it to phosphorus status.Secreted peptides and their receptors constitute components of a partially nutrient-independent autoregulatory pathway.Most land plant species engage in a beneficial interaction with arbuscular mycorrhizal fungi in order to increase mineral nutrient acquisition, in particular the major macronutrient phosphorus (P). Initiation, development, and maintenance of the symbiosis are largely under the control of the host plant and strongly influenced by the plants’ P status. Recent advances reveal that phytohormones, microRNAs, and secreted peptides all regulate and integrate development of arbuscular mycorrhizal (AM) symbiosis with the P status of the plant. This occurs through a complex, multi-layered signaling network with crosstalk between phosphate (Pi) starvation signaling pathways and AM symbiosis signaling, and also via direct effects on the AM fungal symbiont. Multiple checkpoints allow the plant to fine-tune symbiosis based on its P status.