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Survival strategies of arbuscular mycorrhizal fungi in Cu-polluted environments

机译：Cu - 污染环境中丛枝菌根真菌的生存策略

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摘要

This review provides an overview of the mechanisms evolved by arbuscular mycorrhizal (AM) fungi to survive in Cu-contaminated environments. These mechanisms include avoidance strategies to restrict entry of toxic levels of Cu into their cytoplasm, intracellular complexation of the metal in the cytosol and compartmentalization strategies. Through the activity of specific metal transporters, the excess of Cu is translocated to subcellular compartments, mainly vacuoles, where it would cause less damage. At the level of the fungal colony, AM fungi have also evolved compartmentalization strategies based on the accumulation of Cu into specific fungal structures, such as extraradical spores and intraradical vesicles. In addition to the avoidance and compartmentalization strategies, AM fungi have also mechanisms to combat the Cu-generated oxidative stress or to repair the damage induced.
机译：该审查概述了丛枝菌根（AM）真菌在Cu污染环境中生存的机制的概述。这些机制包括避免策略，以将毒性水平的毒性水平限制为其细胞质，细胞溶质和分区策略中的金属的细胞内络合。通过特定金属转运蛋白的活性，过量的Cu被夸张于亚细胞室，主要是真空菌，在那里它会导致损伤较小。在真菌殖民地的水平，AM真菌还基于Cu的积累进入特定的真菌结构，例如外拉孢子和鼻腔囊泡。除了避免和分区化策略之外，AM真菌还有机制来打击Cu - 产生的氧化应激或修复诱导的损伤。

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