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| Research progress on function and heavy metal tolerance mechanism of dark septate endophytes（DSE） |
| Received:April 23, 2023 |
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| KeyWord:dark septate endophytes （DSE）;DSE function;heavy metal tolerance mechanism;plant-microbial synergistic remediation |
| Author Name | Affiliation | E-mail | | YAN Qiaozhi | College of Water Resources and Environment, Hebei GEO University, Shijiazhuang 050031, China | | | LI Qing | College of Water Resources and Environment, Hebei GEO University, Shijiazhuang 050031, China | | | MIAO Zhijia | College of Water Resources and Environment, Hebei GEO University, Shijiazhuang 050031, China
Hebei Center for Ecological and Environmental Geology Research, Hebei Province Collaborative Innovation Center for Sustainable Utilization of Water Resources and Optimization of Industrial Structure, Shijiazhuang 050031, China | Zhijia_miao@163.com | | HU Ziru | College of Water Resources and Environment, Hebei GEO University, Shijiazhuang 050031, China | | | LI Shuoyang | College of Water Resources and Environment, Hebei GEO University, Shijiazhuang 050031, China | | | HU Qing | Xiong'an Innovation Institute, Chinese Academy of Sciences, Xiong'an 071899, China
Commonwealth Scientific and Industrial Research Organization(CSIRO), Kensington 6151, Australia | | | ZHANG Le | College of Water Resources and Environment, Hebei GEO University, Shijiazhuang 050031, China | | | SHEN Xueqing | College of Water Resources and Environment, Hebei GEO University, Shijiazhuang 050031, China | | | ZHAO Zhirui | College of Water Resources and Environment, Hebei GEO University, Shijiazhuang 050031, China
Hebei Center for Ecological and Environmental Geology Research, Hebei Province Collaborative Innovation Center for Sustainable Utilization of Water Resources and Optimization of Industrial Structure, Shijiazhuang 050031, China | Zhiruizh@163.com |
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| Abstract: |
| 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. |
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