Arbuscular mycorrhizal fungi inhibit necrotrophic, but not biotrophic, aboveground plant pathogens: a meta-analysis and experimental study.
Arbuscular mycorrhizal fungi inhibit necrotrophic, but not biotrophic, aboveground plant pathogens: a meta-analysis and experimental study.
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DOI：
10.1111/nph.19392
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发表时间：
2023-11
期刊：
影响因子：
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通讯作者：
Mu Liu;Hongqian Wang;Ziyuan Lin;Junsheng Ke;Peng Zhang;Feng Zhang;Dafu Ru;Li Zhang;
中科院分区：
文献类型：
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作者：
Mu Liu;Hongqian Wang;Ziyuan Lin;Junsheng Ke;Peng Zhang;Feng Zhang;Dafu Ru;Li Zhang;
微生物互利共生可以深刻地改变宿主物种的生态和进化，通过扩展改变与其他微生物物种，包括病原体的相互作用。丛枝菌根真菌（AMF）可以减轻病原体的感染，但这些作用的方向和强度可能是特异性的。为了评估AMF的引入如何影响地上植物疾病的发病率和严重程度（即“疾病影响”），我们对来自69项已发表研究的130项比较进行了荟萃分析。为了阐明AMF对病原体影响的潜在机制，我们进行了三个温室实验，涉及六种非木本植物，获得了叶片营养成分，植物防御化合物和转录组的关键数据。我们的荟萃分析显示，AMF的接种导致疾病的影响减少。更确切地说，AMF接种与坏死营养型疾病的减少有关，而对生物营养型疾病没有显着影响。化学和转录组分析表明，这些影响可能是由AMF调控茉莉酸和水杨酸信号通路在温室实验。然而，植物营养状况和次生化学物质的变化也可能调节疾病的影响。这些结果强调了在预测微生物互惠作用如何影响疾病影响时，结合病原体生活史的重要性。
Microbial mutualists can profoundly modify host species ecology and evolution, by extension altering interactions with other microbial species, including pathogens. Arbuscular mycorrhizal fungi (AMF) may moderate infections by pathogens, but the direction and strength of these effects can be idiosyncratic. To assess how the introduction of AMF impacts the incidence and severity of aboveground plant diseases (i.e. 'disease impact'), we conducted a meta-analysis of 130 comparisons derived from 69 published studies. To elucidate the potential mechanisms underlying the influence of AMF on pathogens, we conducted three glasshouse experiments involving six non-woody plant species, yielded crucial data on leaf nutrient composition, plant defense compounds, and transcriptomes. Our meta-analysis revealed that the inoculation of AMF lead to a reduction in disease impact. More precisely, AMF inoculation was associated with a decrease in necrotrophic diseases, while no significant impact on biotrophic diseases. Chemical and transcriptome analyses suggested that these effects may be driven by AMF regulation of jasmonic acid and salicylic acid signaling pathways in glasshouse experiments. However, changes in plant nutritional status and secondary chemicals may also regulate disease impact. These results emphasize the importance of incorporating pathogen life history when predicting how microbial mutualisms affect disease impact.