Taiyuan Ecological Environmental Monitoring and Science Research Center, Taiyuan, 030002, China.
School of Earth System Science, Tianjin University, Tianjin, 300072, China.
BMC Plant Biol. 2024 Oct 14;24(1):960. doi: 10.1186/s12870-024-05638-9.
Arbuscular mycorrhizal fungi (AMF) have profound effects on plant growth and nitrogen (N) and phosphorus (P) nutrition. However, a comprehensive evaluation of how plant N and P respond to AMF inoculation is still unavailable. Here, we complied data from 187 original researches and carried out a meta-analysis to assess the effects of AMF inoculation on plant growth and N and P nutrition. We observe overall positive effects of AMF inoculation on plant performance. The mean increases of plant biomass, N concentration, P concentration, N and P uptake of whole plant are 47%, 16%, 27%, 67%, and 105%, respectively. AMF inoculation induces more increases in plant concentrations and storage of P than N. Plant responses to AMF inoculation are substantially higher with single AMF species than with mixed AMF species, in laboratory experiments than in field experiments, and in legumes than in non-legumes. The response ratios of plant N and P nutrition are positively correlated with AMF colonization rate, N addition, P addition, and water condition, while unvaried with experiment duration. The biggest and smallest effect sizes of AMF inoculation on plant performance are observed in the application of nitrate and ammonium, respectively. Accordingly, this meta-analysis study clearly suggests that AMF inoculation improves both plant N and P nutrients and systematically clarifies the variation patterns in AMF effects with various biotic and abiotic factors. These findings highlight the important role of AMF inoculation in enhancing plant N and P resource acquisitions and provide useful references for evaluating the AMF functions under the future global changes.
丛枝菌根真菌（AMF）对植物生长和氮（N）磷（P）营养具有深远影响。然而，对于植物对 AMF 接种的 N 和 P 响应的综合评估仍然缺乏。在这里，我们综合了 187 项原始研究的数据，并进行了荟萃分析，以评估 AMF 接种对植物生长和 N 和 P 营养的影响。我们观察到 AMF 接种对植物性能具有整体积极的影响。AMF 接种对植物生物量、N 浓度、P 浓度、整株植物的 N 和 P 吸收的平均增加量分别为 47%、16%、27%、67%和 105%。AMF 接种诱导植物对 P 的浓度和储存的增加大于 N。与混合 AMF 物种相比，植物对 AMF 接种的响应在单种 AMF 物种中更高，在实验室实验中比在田间实验中更高，在豆科植物中比在非豆科植物中更高。植物 N 和 P 营养的响应比与 AMF 定殖率、N 添加、P 添加和水分条件呈正相关，而与实验持续时间无关。AMF 接种对植物性能的最大和最小效应大小分别在硝酸盐和铵盐的应用中观察到。因此，这项荟萃分析研究清楚地表明，AMF 接种可改善植物的 N 和 P 养分，系统地阐明了 AMF 效应随各种生物和非生物因素的变化模式。这些发现强调了 AMF 接种在增强植物 N 和 P 资源获取方面的重要作用，并为评估未来全球变化下 AMF 功能提供了有用的参考。
