Heavy metal pollution of soil has a long residence time.Recovery of heavy metals and treatment of the polluted soil is difficult.Remediation of heavy metal contaminated soil has attracted much attention.Dark septate endophytes(DSE)can coexist with a variety of plants and are important role in promoting plant growth,strengthening the tolerance mechanism of plants to heavy metal,and repairing heavy metal contaminated soil.To systematically explain the function of DSE and the mechanism of heavy metal tolerance,structural characteristics and colonization of DSE and their mechanisms of growth promotion of host plants are reviewed,with emphasis on the mechanisms of DSE under heavy metal stress(adsorption and chelation,regulation of gene expression,anti-oxidative stress and compartmentalization).In addition,the current applications and prospects of the symbiosis between DSE and plants in the remediation of heavy metal contaminated soil are summarized.The findings provide a theoretical reference for the remediation of DSE in heavy metal contaminated environments.
关键词
深色有隔内生真菌(DSE)/DSE功能/重金属耐性机制/植物-微生物协同修复
Key words
dark septate endophytes(DSE)/DSE function/heavy metal tolerance mechanism/plant-microbial synergistic remediation
维普
万方数据