Differential effects of arbuscular mycorrhizal fungi on three salt‐tolerant grasses under cadmium and salt stress

Bibliographic Data

ID21647907
AuthorsBingbing Jia (Inner Mongolia Key Laboratory of Environmental Pollution Control and Waste Resource Recycle, Ministey of Education Collaborative Innovation Center for Grassland Ecological Security, Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau, School of Ecology and Environment Inner Mongolia University Hohhot PR China), Fengwei Diao (Inner Mongolia Key Laboratory of Environmental Pollution Control and Waste Resource Recycle, Ministey of Education Collaborative Innovation Center for Grassland Ecological Security, Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau, School of Ecology and Environment Inner Mongolia University Hohhot PR China), Shengli Ding (Inner Mongolia Key Laboratory of Environmental Pollution Control and Waste Resource Recycle, Ministey of Education Collaborative Innovation Center for Grassland Ecological Security, Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau, School of Ecology and Environment Inner Mongolia University Hohhot PR China), Zhongqi Shi (0000-0002-7054-501X, Inner Mongolia Key Laboratory of Environmental Pollution Control and Waste Resource Recycle, Ministey of Education Collaborative Innovation Center for Grassland Ecological Security, Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau, School of Ecology and Environment Inner Mongolia University Hohhot PR China), Jing Xu (0000-0001-7414-9383, Inner Mongolia Key Laboratory of Environmental Pollution Control and Waste Resource Recycle, Ministey of Education Collaborative Innovation Center for Grassland Ecological Security, Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau, School of Ecology and Environment Inner Mongolia University Hohhot PR China), Lijun Hao (0000-0001-8366-7705, Inner Mongolia Key Laboratory of Environmental Pollution Control and Waste Resource Recycle, Ministey of Education Collaborative Innovation Center for Grassland Ecological Security, Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau, School of Ecology and Environment Inner Mongolia University Hohhot PR China), Frank Yonghong Li (0000-0002-5137-8017, Inner Mongolia Key Laboratory of Environmental Pollution Control and Waste Resource Recycle, Ministey of Education Collaborative Innovation Center for Grassland Ecological Security, Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau, School of Ecology and Environment Inner Mongolia University Hohhot PR China), Wei Guo (0000-0002-4888-4816, Inner Mongolia Key Laboratory of Environmental Pollution Control and Waste Resource Recycle, Ministey of Education Collaborative Innovation Center for Grassland Ecological Security, Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau, School of Ecology and Environment Inner Mongolia University Hohhot PR China, corresponding author)
Year2023
Volume34
Issue2
Pages506-520
Publication date2023-01-30
Peer ReviewedYes
Open AccessYes
TypeARTICLE
VenueLand Degradation and Development (JOURNAL)
Journal identifiersISSN: 1085-3278 • E-ISSN: 1099-145X
PublisherWiley (PUBLISHER • GB)
DOI10.1002/ldr.4475
OpenAlexW4296960214
LanguageEN
Citations received1
References cited67

Salt‐tolerant plants generally grow in salty conditions, and some of them are also tolerant to heavy metal stress. Arbuscular mycorrhizal fungi (AMF) can help plants withstand abiotic stresses. However, few studies have focused on the effects of AMF on the growth of salt‐tolerant plants in cadmium (Cd)‐contaminated saline soils. In this study, a greenhouse pot experiment was conducted to investigate the effects of AMF ( Funneliformis mosseae ) on growth, ion uptake, and Na + and Cd translocation in three salt‐tolerant grasses ( Leymus chinensis , Puccinellia distans , and Astragalus adsurgens ) in a Cd‐contaminated saline soil. The regulation of genes by AMF in A. adsurgens was also explored by transcriptome analysis. The results showed that AMF increased the biomass of A. adsurgens but not that of L. chinensis and P. distans . AMF promoted phosphorus (P) uptake from soil and improved shoot K + : Na + ratio, but it decreased shoot Na + and Cd concentrations and their translocation rates in A. adsurgens . Transcriptome analysis showed that AMF upregulated the differentially expressed genes (DEGs) encoding cytokinins, which may be linked to the increase in shoot biomass in inoculated A. adsurgens, but downregulated the DEGs related to light harvest, suggesting avoidance of photodamage. AMF downregulated the DEGs in the pathways of the cell wall and those associated with antioxidant enzymes. These results suggest that AMF symbiosis in A. adsurgens effectively alleviates the Na + and Cd toxicity of shoots. This study implies the potential to use salt‐tolerant grasses in association with AMF to rehabilitate the heavy metal‐contaminated saline ecosystems

Agronomy · Biology · Botany · Cadmium · Phytoremediation · Shoot · Soil water · Chemistry · Fungal Biology and Applications · Lichen and fungal ecology · Mycorrhizal Fungi and Plant Interactions · Ecology

Tools

Open DOI