数字农科院2.0

Hijacking host phosphate sensing: a new frontier in plant–pathogen warfare

文献类型： 外文期刊

作者： 邱结华;;鲁菲菲;;胡培松;;寇艳君

关键词： phosphate sensing

期刊名称： Science Bulletin

ISSN： 2095-9273

年卷期： 2025 年

页码：

收录情况： SCIE（2025版） ; ; EI（2025版） ; ; CSCD（2025-2026年度） ; ; 科技核心（2024版）

摘要： Plant–microbe interactions are profoundly shaped by the availability of phosphate (Pi) in both the host and the ambient environment, spanning a spectrum from mutualism to pathogenicity. Arbuscular mycorrhizal fungi (AMF) enhance the nutrition of many vascular plants by facilitating the acquisition of inorganic Pi and other nutrients from the environment through symbiotic exchanges, thereby promoting plant growth. In contrast, pathogens hijack plant mineral resources, and paradoxically, an adequate supply of phosphorus can actually change plant susceptibility to such fungal invasions, with the underlying molecular mechanisms remaining poorly understood [1]. Recent breakthroughs by McCombe et al. (2025) have unveiled sophisticated strategies employed by phytopathogenic fungi to manipulate host phosphate signaling pathways. This study identified a novel effector family with Nudix hydrolase activity in the rice blast fungus Magnaporthe oryzae, the Brassicaceae anthracnose pathogen Colletotrichum higginsianum, and maize anthracnose pathogen C. graminicola. These secreted Nudix effectors selectively hydrolyze inositol pyrophosphate (PP-InsP), thereby mimicking Pi starvation and activating the phosphate starvation response pathway, which in turn promotes disease

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