全球变化因子下丛枝菌根真菌对宿主性能的环境依赖性贡献

IF 9.8 1区 农林科学 Q1 SOIL SCIENCE
Lennel Camuy-Velez , Ditam Chakraborty , Addisyn Young , Sakshi Paudel , Rylie Elvers , Miranda Vanderhyde , Kelly Walter , Chantal Herzog , Samiran Banerjee
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引用次数: 0

摘要

丛枝菌根真菌(AMF)对应激条件下宿主的生产性能有贡献;然而,压力的类型和强度会影响这种贡献。重要的是,菌根共生的益处也可能因寄主植物的功能群而异。目前还不清楚的是,多物种接种是否能更好地减轻宿主的压力,或者单物种接种是否足以增强宿主的恢复力。为了解决这些知识差距,我们对来自六大洲36个国家的252项研究进行了全球荟萃分析。结果表明,在这些全球变化因子的影响下,菌根联系会提高寄主生物量的磷和氮含量。然而,与先前的荟萃分析相反,我们发现AMF在热、冷、干旱、盐度、农药和重金属污染下的贡献是可变的。每种应力类型对AMF对宿主性能的贡献都有独特的影响,但这种影响也随应力的强度而变化。与多菌种接种相比,单菌种接种对应激条件下宿主生产性能的贡献更显著。我们还发现,AMF对植物生长响应的贡献在不同的植物功能群中存在显著差异,禾草和豆科植物在全球变化因子下显著受益于菌根关联。总体而言,本研究强调AMF对胁迫下寄主性能的贡献高度依赖于环境,并受到多种因素的影响,包括胁迫类型和强度、接种类型和寄主植物的功能群。因此,我们的荟萃分析可以帮助建立假说,这些假说可以通过机械实验进行测试,以更好地了解AMF和寄主植物在克服胁迫方面的协同关系。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Context-dependent contributions of arbuscular mycorrhizal fungi to host performance under global change factors
Arbuscular Mycorrhizal Fungi (AMF) contribute to host performance under stress conditions; however, the type and intensity of stress can shape this contribution. Importantly, the benefits of mycorrhizal symbiosis may also vary with the functional group of host plants. It also remains unclear whether multi-species inocula confer greater stress alleviation to hosts or if single-species inocula are sufficient for host resilience. To address these knowledge gaps, we conducted a global meta-analysis of 252 studies from 36 countries on six continents. Our analysis revealed that mycorrhizal associations enhance the phosphorus and nitrogen content of host biomass under these global change factors. However, contrary to previous meta-analyses that found consistently strong impacts of AMF, we found variable contributions of AMF under heat, cold, drought, salinity, pesticide, and heavy metal pollution. Each stress type has a unique impact on the contribution of AMF to host performance, but this impact also varies with the intensity of stress. Single-species AMF inocula contribute more significantly to host performance under stress compared to multi-species inocula. We also show that the contribution of AMF to plant growth response significantly varies across different plant functional groups, with grasses and legumes significantly benefiting from mycorrhizal associations under global change factors. Overall, this study highlights that the contribution of AMF to host performance under stress is highly context-dependent and influenced by various factors, including the type and intensity of stress, the type of inocula, and the functional groups of host plants. Thus, our meta-analysis can help develop hypotheses that can be tested with mechanistic experiments to gain a better understanding of the synergistic relationship between AMF and host plants in overcoming stress.
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来源期刊
Soil Biology & Biochemistry
Soil Biology & Biochemistry 农林科学-土壤科学
CiteScore
16.90
自引率
9.30%
发文量
312
审稿时长
49 days
期刊介绍: Soil Biology & Biochemistry publishes original research articles of international significance focusing on biological processes in soil and their applications to soil and environmental quality. Major topics include the ecology and biochemical processes of soil organisms, their effects on the environment, and interactions with plants. The journal also welcomes state-of-the-art reviews and discussions on contemporary research in soil biology and biochemistry.
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