文献类型： 外文期刊

作者： Sun, Simiao ¹ ; Fan, Xiaoxu ¹ ; Feng, Yuhan ¹ ; Wang, Xiaohui ¹ ; Gao, Hongsheng ³ ; Song, Fuqiang ¹ ;

作者机构： 1.Heilongjiang Univ, Sch Life Sci, Heilongjiang Prov Key Lab Ecol Restorat & Resource, Harbin 150080, Peoples R China

2.Heilongjiang Univ, Jiaxiang Ind Technol Res Inst, Jining 272400, Peoples R China

3.Heilongjiang Acad Agr Sci, Heilongjiang Fertilizer Engn Technol Res Ctr, Harbin 150086, Peoples R China

4.Heilongjiang Acad Agr Sci, Heilongjiang Acad Black Soil Conservat & Utilizat, Harbin 150086, Peoples R China

5.Heilongjiang Univ, Harbin 150080, Peoples R China

关键词： Phytoremediation; Heavy metal; Industrial crops; ABC transporter; Rhizophagus irregularis

期刊名称：CHEMOSPHERE （ 影响因子：8.8； 五年影响因子：8.3 ）

ISSN： 0045-6535

年卷期： 2023 年 330 卷

页码：

收录情况： SCI

摘要： Phytoremediation is currently a more environmentally friendly and economical measure for the remediation of cadmium (Cd) contaminated soil. Heavy metal-resistant plant species, Cannabis sativa L. was inoculated with Rhizophagus irregularis to investigate the mechanisms of mycorrhizal in improving the Cd remediation ability of C. sativa. The results showed that after inoculation with R. irregularis, C. sativa root Cd contents increased significantly, and leaf Cd enrichment decreased significantly. At the transcriptional level, R. irregularis down -regulated the expression of the ABC transporter family but up-regulated differentially expressed genes regu-lating low molecular weight organic acids. The levels of malic acid, citric acid, and lactic acid were significantly increased in the rhizosphere soil, and they were significantly and strongly related to oxidizable Cd concentra-tions. Then citric acid levels were considerably and positively connected to exchangeable Cd concentrations. Our findings revealed that through regulating the movement of root molecules, arbuscular mycorrhizal fungus enhanced the heavy metal tolerance of C. sativa even more, meanwhile, they changed the Cd chemical forms by altering the composition of low molecular weight organic acids, which in turn affected soil Cd bioavailability.