Phytoremediation and bioremediation are eco-friendly methods of wastewater treatment that are widely used throughout the world to reduce anthropogenic water contamination. This study was conducted to assess the effectiveness of symbiotic bacteria in phytoremediation using two aquatic plants, Echinodorus cordifolius and Lepironia articulata, that were tested in sterilized and unsterilized groups. The results showed that unsterilized plants removed more phosphate, ammonium, nitrate and nitrite than the sterilized plants. In untreated and unsterilized E. cordifolius groups, the dominant bacterium was Calothrix (46.90 and 49.69%, respectively), which was higher than in the sterilized E. cordifolius group (38.88%). In untreated and unsterilized groups of L. articulata, Clostridium was a dominant bacterium. The proportion of Clostridium was much lower in the sterilized L. articulata group (1.31%) than in the untreated (13.71%) and unsterilized (49.02%) groups. Our results suggested that root-associated bacteria in E. cordifolius and L. articulata were effective in the removal of phosphorus and nitrogen from domestic wastewater.

植物修复和生物修复是废水处理的生态友好方法，在全世界范围内广泛用于减少人为水污染。这项研究的目的是评估使用两种水生植物（Echinodorus cordifolius和Lepironia articulata）在杀菌和未杀菌组中测试的共生细菌在植物修复中的有效性。结果表明，未灭菌的植物比灭菌的植物去除了更多的磷酸盐，铵，硝酸盐和亚硝酸盐。在未经处理和未经灭菌的大肠杆菌中，优势菌是Calotrix（分别为46.90和49.69％），高于灭菌的大肠杆菌。组（38.88％）。在未处理和未灭菌的L. articulata组中，梭状芽胞杆菌是优势细菌。灭菌的L. articulata组的梭菌比例要低得多（1.31％），而未处理的（13.71％）和未灭菌的组（49.02％）要低得多。我们的研究结果表明，在根相关的细菌E. cordifolius和L. articulata均有效地从生活污水除磷和氮。