A pot experiment was conducted to investigate the effect of a series of β-cyclodextrin (β-CD) concentrations on bioremediation of soil co-contaminated with Cd and BDE-209 using amaranth and the white-rot fungus Phanerochaete chrysosporium, with BDE-209 degrading ability. Results showed that the white-rot fungus was beneficial to the growth of amaranth, Cd uptake and BDE-209 degradation. Addition of β-CD further increased biomass of both shoots and roots, shoot Cd concentrations and contents, chlorophyll concentrations and soil manganese peroxidase (MnP) activities. Furthermore, well-organized mesophyll cells were observed in β-CD treatments, implying that the combination of white-rot fungus and β-CD can alleviate the stresses of Cd and BDE-209 to mesophyll cells. The BDE-209 degradation rate was positively correlated to β-CD concentration and MnP activity in soil. Our results also revealed that RF + β_0.8 treatment possessed the greatest Cd removal efficiency due to its well-configured mesophyll cells and the highest shoot biomass, chlorophyll concentration, and shoot Cd concentration. Considering simultaneous removal of Cd and BDE-209 from soil, using 0.8% β-CD to amaranth inoculated with white-rot fungus is a promising way forward for the phytoremediation of soil co-contaminated with Cd and BDE-209. A high percentage of mono-BDE was detected in inoculated amaranth, suggesting that BDE-209 was debrominated into low brominated PBDEs by the fungus in soil, which were then absorbed and further debrominated into mono-BDE in the plant.

进行了盆栽试验，研究了一系列的β-环糊精（β-CD）浓度对a菜和白腐真菌Phanerochaete chrysosporium对Cd和BDE-209共同污染的土壤的生物修复的影响。，具有BDE-209降解能力。结果表明，白腐真菌有利于a菜的生长，Cd的吸收和BDE-209的降解。β-CD的添加进一步增加了芽和根的生物量，芽Cd的浓度和含量，叶绿素的浓度以及土壤锰过氧化物酶（MnP）的活性。此外，在β-CD处理中观察到组织良好的叶肉细胞，这意味着白腐真菌和β-CD的组合可以减轻Cd和BDE-209对叶肉细胞的胁迫。BDE-209的降解速率与土壤中的β-CD浓度和MnP活性呈正相关。我们的结果还表明，RF + _β0.8由于其良好的叶肉细胞配置和最高的枝条生物量，叶绿素浓度和枝条Cd浓度，该处理具有最大的Cd去除效率。考虑到从土壤中同时去除Cd和BDE-209，使用0.8％β-CD接种白腐真菌的mar菜是对Cd和BDE-209共同污染的土壤进行植物修复的有前途的方法。在接种的a菜中检测到高百分比的单BDE，这表明土壤中的真菌将BDE-209溴化为低溴化PBDE，然后被植物吸收并进一步溴化为单BDE。