Microbiology of constructed wetland sediment under microplastic and heavy metal stress

The study explored the cross-contamination influence of heavy metals (Cu, Zn, Mn, Ni, Pb) and aged polyester and polyethylene microplastics in batch fed constructed wetlands. Rhizosphere sediment samples were taken at the beginning and the end of the experiment to provide information the direction of microbiome development. Microplastic did show to favor species usually found in the plastisphere and connected to its degradation. Temporal and treatment changes were observed.

本研究探究了重金属（Cu、Zn、Mn、Ni、Pb）与老化聚酯（polyester）、聚乙烯（polyethylene）微塑料在间歇式进水人工湿地中的交叉污染效应。本研究于实验起始与结束阶段分别采集根际沉积物样本，以解析微生物组的演替方向。结果表明，微塑料确实会偏好定殖于塑料圈（plastisphere）中且与其降解相关的微生物类群。同时，观测到了时间维度与不同处理条件下的群落变化。