文献类型：期刊文献

英文题名：Mycorrhizal Fungi Funneliformis mosseae Mitigates Cadmium Bioavailability in Pepper Rhizosphere via Glomalin Production and pH Elevation

作者：Jia, Yanlong Zhou, Peng Tu, Dehui Lan, Xiaolong Lin, Wenjie Xing, Dan Ning, Zengping

第一作者：贾彦龙;Jia, Yanlong

通信作者：Lin, WJ[1];Xing, D[2];Ning, ZP[3]

机构：[1]Hanshan Normal Univ, Sch Chem & Environm Engn, Chaozhou 521041, Peoples R China;[2]Guizhou Inst Technol, Sch Resources & Environm Engn, Guiyang 550002, Peoples R China;[3]Guizhou Acad Agr Sci, Inst Pepper, Guiyang 550006, Peoples R China;[4]Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550002, Peoples R China

第一机构：Hanshan Normal Univ, Sch Chem & Environm Engn, Chaozhou 521041, Peoples R China

通信机构：corresponding author), Hanshan Normal Univ, Sch Chem & Environm Engn, Chaozhou 521041, Peoples R China;corresponding author), Guizhou Acad Agr Sci, Inst Pepper, Guiyang 550006, Peoples R China;corresponding author), Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550002, Peoples R China.

年份：2026

卷号：15

期号：6

外文期刊名：PLANTS-BASEL

收录：;Scopus(收录号：2-s2.0-105034416379);WOS:【SCI-EXPANDED(收录号:WOS:001725408400001)】；

基金：This research was funded by the Project of Hanshan Normal University (XSDBF2025202), the Guizhou Provincial Key Technology R&D Program (No. 492 2021 QKHZC) and the Project of Educational Commission of Guangdong Province of China (No. 2023KSYS007, 2023KTSCX078, 2023KCXTD023, 2021ZDJS040, and 2020ZDZX1032).

语种：英文

外文关键词：arbuscular mycorrhizal fungi; soil reclamation; metal toxicity; glomalin-related soil protein

摘要：Cadmium (Cd) contamination in agricultural soils, especially in regions with a naturally high geochemical background such as Southwest China, poses a serious threat to food safety and the health of terrestrial ecosystems. Although arbuscular mycorrhizal fungi (AMFs) are known to enhance plant tolerance to heavy metals, the specific mechanisms by which dominant AMF species in karst soils-such as Funneliformis mosseae (Fm) and Rhizophagus intraradices (Ri)-immobilize Cd are not yet fully understood. In this study, a pot experiment with pepper plants was conducted to investigate the effects of Fm and Ri inoculation on Cd geochemistry in both the rhizosphere and bulk soil. Key results showed that AMF inoculation, especially with Fm, significantly reduced total Cd (by up to 33.8%) and bioavailable Cd (by up to 36.3%) concentrations in the soil, with a more pronounced effect within the rhizosphere. Accordingly, Cd content in pepper shoots was reduced by up to 15.0%. Inoculation also increased soil pH, organic matter, available phosphorus, and glomalin-related soil protein (GRSP) content. Redundancy analysis identified soil pH and total extractable GRSP as primary factors negatively correlated with Cd bioavailability. The study concludes that AMFs, particularly Fm, represent a potent bioremediation strategy by effectively immobilizing Cd in contaminated soils through mechanisms linked to GRSP production and pH elevation, thereby reducing its phytoavailability and translocation to edible plant parts.