Journal article
The role of arbuscular mycorrhizal fungi in the alleviation of cadmium stress in cereals: A multilevel meta-analysis
The Science of The Total Environment, Vol.902, 166091
2023
PMID: 37553055
Abstract
The symbiotic relationships between crop species and arbuscular mycorrhizal fungi (AMF) are crucial for plant health, productivity, and environmental sustainability. The roles of AMF in reducing crop stress caused by cadmium (Cd) toxicity and in the remediation of Cd-contaminated soil are not fully understood. Here we report on a meta-analysis that sought to identify the functions of AMF in cereals under Cd stress. A total of 54 articles published between January 1992 and September 2022 were used to create the dataset, which provided 7216 data sets on mycorrhizal cereals under Cd stress examined. AMF effects on colonization rate, biomass, physiological level, nutritional level, and plant Cd level were measured using the logarithmic response ratio (Ln R). The results showed that AMF overall greatly reduced 5.14 – 33.6 % Cd stress on cereals in greenhouse experiments under controlled conditions. AMF colonization significantly stimulated crop biomass by 65.7 %, boosted the formation of photosynthetic pigments (23.2 %), and greatly increased plant nitrogen (24.8 %) and phosphorus (58.4 %) uptake. The dilution effect of mycorrhizal plants made the Cd concentration decline by 25.2 % in AMF plants compared to non-mycorrhizal ones. AMF also alleviated Cd stress by improving osmotic regulators (soluble protein, sugar, and total proline, from 14.8 to 36.0 %) and lowering the membrane lipid peroxidation product (MDA, 12.9 %). Importantly, the results from the random forest and model selection analysis demonstrated that crop type, soil characteristics, chemical form, and Cd levels were the main factors determining the function of AMF in alleviating Cd stress. Additionally, there was a significant interaction between AMF colonization rate and Cd addition, but their interactive effect was less than the colonization rate alone. This meta-analysis demonstrated that AMF inoculation could be considered as a promising strategy for mitigation of Cd stress in cereals.
Details
- Title
- The role of arbuscular mycorrhizal fungi in the alleviation of cadmium stress in cereals: A multilevel meta-analysis
- Authors/Creators
- Yamin Gao - College of Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, ChinaTingting An - State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling, Shaanxi 712100, ChinaQiqiang Kuang - College of Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, ChinaYujie Wu - College of Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, ChinaShuo Liu - College of Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, ChinaLiyan Liang - State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling, Shaanxi 712100, ChinaMin Yu - International Research Center for Environmental Membrane Biology, and Department of Horticulture, Foshan University, Foshan 528000, ChinaAndrew Macrae - Universidade Federal do Rio de JaneiroYinglong Chen - College of Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China
- Publication Details
- The Science of The Total Environment, Vol.902, 166091
- Publisher
- Elsevier B.V
- Identifiers
- 991005894365407891
- Copyright
- © 2023 The Authors.
- Murdoch Affiliation
- Food Futures Institute
- Language
- English
- Resource Type
- Journal article
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