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Influences of arbuscular mycorrhizal fungi on crop growth and potentially toxic element accumulation in contaminated soils: A meta-analysis

文献类型： 外文期刊

作者： Chen, Li 1 ; Wang, Fayuan 3 ; Zhang, Zhiqin 1 ; Chao, Herong 1 ; He, Haoran 1 ; Hu, Weifang 4 ; Zeng, Yi 1 ; Duan, Chengjiao 2 ; Liu, Ji 5 ; Fang, Linchuan 1 ;

作者机构： 1.Northwest A&F Univ, Coll Nat Resources & Environm, Yangling, Peoples R China

2.Inst Soil & Water Conservat CAS & MWR, State Key Lab soil Eros & Dryland Farming Loess Pl, Yangling, Peoples R China

3.Qingdao Univ Sci & Technol, Coll Environm & Safety Engn, Qingdao, Peoples R China

4.Guangdong Acad Agr Sci, Inst Agr Resources & Environm, Guangzhou, Peoples R China

5.Cent China Normal Univ, Hubei Prov Key Lab Geog Proc Anal & Simulat, Wuhan, Peoples R China

6.Leibniz Inst Freshwater Ecol & Inland Fisheries, Dept Ecohydrol, Berlin, Germany

关键词： Arbuscular mycorrhizal fungi; potentially toxic elements; crop growth; bioaccumulation; physiological activities; meta-analysis; Jorg Rinklebe and Lena Q; Ma

期刊名称：CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY （ 影响因子：12.6； 五年影响因子：13.6 ）

ISSN： 1064-3389

年卷期： 2023 年 53 卷 20 期

页码：

收录情况： SCI

摘要： Soil pollution from potentially toxic elements (PTEs) is a serious environmental issue worldwide that affects agricultural safety and human health. Arbuscular mycorrhizal fungi (AMF), as ecosystem engineers, can alleviate PTE toxicity in crop plants. However, the comprehensive effects of AMF on crop performance in PTE-contaminated soils have not yet been recognized globally. Here, a meta-analysis of 153 studies with 3213 individual observations was conducted to evaluate the effects of AMF on the growth and PTE accumulation of five staple crops (wheat, rice, maize, soybean, and sorghum) in contaminated soils. Our results demonstrated that AMF had strong positive effects on the shoot and root biomass. This is because AMF can effectively alleviate oxidative damage induced by PTEs by stimulating photosynthesis, promoting nutrition, and activating non-enzymatic and enzymatic defense systems in crop plants. AMF also decreased shoot PTE accumulation by 23.6% and increased root PTE accumulation by 0.8%, demonstrating that AMF effectively inhibited the PTE transfer and uptake by crop shoot. Meanwhile, AMF-mediated effects on shoot PTE accumulation were weaker in soils with pH > 7.5. Overall, this global survey has essential implications on the ability of AMF to enhance crop performance in PTE-contaminated soils and provides insights into the guidelines for safe agricultural production worldwide.

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