Instituto Multidisciplinario de Biología Vegetal (IMBIV), CONICET, FCEFyN, Universidad Nacional de Córdoba, CC, 495, 5000, Córdoba, Argentina.
Department of Mycorrhizal Symbioses, Institute of Botany of the Czech Academy of Sciences, Zámek 1, 25243, Průhonice, Czech Republic.
New Phytol. 2022 Jul;235(1):320-332. doi: 10.1111/nph.18102. Epub 2022 Apr 9.
The great majority of plants gain access to soil nutrients and enhance their performance under stressful conditions through symbiosis with arbuscular mycorrhizal fungi (AMF). The benefits that AMF confer vary among species and taxonomic groups. However, a comparative analysis of the different benefits among AMF has not yet been performed. We conducted a global meta-analysis of recent studies testing the benefits of individual AMF species and main taxonomic groups in terms of plant performance (growth and nutrition). Separately, we examined AMF benefits to plants facing biotic (pathogens, parasites, and herbivores) and abiotic (drought, salinity, and heavy metals) stress. AMF had stronger positive effects on phosphorus nutrition than on plant growth and nitrogen nutrition and the effects on the growth of plants facing biotic and abiotic stresses were similarly positive. While the AMF taxonomic groups showed positive effects on plant performance either with or without stress, Diversisporales were the most beneficial to plants without stress and Gigasporales to plants facing biotic stress. Our results provide a comprehensive analysis of the benefits of different AMF species and taxonomic groups on plant performance and useful insights for their management and use as bio-inoculants for agriculture and restoration.
大多数植物通过与丛枝菌根真菌（AMF）共生来获取土壤养分并在胁迫条件下提高其性能。AMF 赋予的益处因物种和分类群而异。然而，目前尚未对 AMF 之间的不同益处进行比较分析。我们对最近的研究进行了全球荟萃分析，这些研究测试了单个 AMF 物种和主要分类群在植物性能（生长和营养）方面的益处。此外，我们还研究了 AMF 对面临生物（病原体、寄生虫和食草动物）和非生物（干旱、盐度和重金属）胁迫的植物的益处。AMF 对磷营养的促进作用强于对植物生长和氮营养的促进作用，对面临生物和非生物胁迫的植物生长的促进作用也同样为正。虽然 AMF 分类群在有或没有胁迫的情况下对植物性能都有积极的影响，但 Diversisporales 对没有胁迫的植物最有益，而 Gigasporales 对面临生物胁迫的植物最有益。我们的研究结果对不同 AMF 物种和分类群对植物性能的益处进行了全面分析，并为它们的管理和作为农业和恢复的生物接种剂的使用提供了有用的见解。
