Arbuscular mycorrhizal fungi attenuate negative impact of drought on soil functions

Although positive effects of arbuscular mycorrhizal (AM) fungi on plant performance under drought have been well documented, how AM fungi regulate soil functions and multifunctionality requires further investigation. In this study, we first performed a meta-analysis to test the potential role of AM fungi in maintaining soil functions under drought. Then, we conducted a greenhouse experiment, using a pair of hyphal ingrowth cores to spatially separate the growth of AM fungal hyphae and plant roots, to further investigate the effects of AM fungi on soil multifunctionality and its resistance against drought.尽管丛枝菌根（arbuscular mycorrhizal, AM）真菌在干旱胁迫下对植物生长表现的积极效应已得到充分证实，但AM真菌如何调控土壤功能与土壤多功能性，仍有待进一步研究。本研究首先开展元分析，以检验AM真菌在干旱条件下维持土壤功能的潜在作用；随后设置温室试验，采用配对菌丝侵入芯装置对AM真菌菌丝与植物根系的生长进行空间分隔，进一步探究AM真菌对土壤多功能性及其抗旱性的影响。