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Enrichment of antibiotic resistance genetic elements in rural sewage by wetland plants
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Fei-fei WEN1, Kui HUANG1, 2, 3, *, Hui XIA1, Bing-yu SONG1, Meng ZHAO1
China Environmental Science | 2025, 45(4) : 1985 - 1994
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China Environmental Science | 2025, 45(4): 1985-1994
• Water Pollution Control •
Enrichment of antibiotic resistance genetic elements in rural sewage by wetland plants
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Fei-fei WEN1, Kui HUANG1, 2, 3, *, Hui XIA1, Bing-yu SONG1, Meng ZHAO1
Affiliations
  • 1.School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
  • 2.Key Laboratory of Yellow River Water Environment in Gansu Province, Lanzhou 730070, China
  • 3.Ministry of Education Engineering Research Center of Water Resource Comprehensive Utilization in Cold and Arid Regions, Lanzhou 730070, China
Published: 2025-04-20
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This study aimed to explore the accumulation of MGEs by wetland plants in the treatment of rural sewage using a soil ecological infiltration system. Thus, the changes in the integrase gene intI1and transposase gene tnpA-04 in the vegetative parts of the wetland plant Iris were investigated before and after treatment. The results showed that, over a 60d operational period, the soil ecological infiltration system achieved average removal rates of ammonia nitrogen and chemical oxygen demand from rural sewage of 88.50% and 75.17%, respectively. The average height and fresh weight of the Iris increased by 3.63% and 43.45%, respectively. The concentration of MGEs in the plant increased by 1.67ng/g, with intracellular accounting for 68.26%. Forthermore, the abundance of the tnpA-04 gene was found to be 37.86% higher than that of the intI1gene, which demonstrated a higher propensity for transfer within the vegetative parts of Iris. The bioconcentration ability for MGEs in the plant's vegetative parts followed the order: stem >root > leaf. Moreover, variations in soil properties significantly influenced the plant's ability to accumulate MGEs (P < 0.05). This study suggests that wetland plants can effectively accumulate MGEs from rural sewage, thereby reducing the risk of antibiotic resistance gene dissemination.

wetland plant  /  soil infiltration  /  sewage  /  horizontal gene transfer  /  mobile genetic elements
Fei-fei WEN, Kui HUANG, Hui XIA, Bing-yu SONG, Meng ZHAO. Enrichment of antibiotic resistance genetic elements in rural sewage by wetland plants[J]. China Environmental Science, 2025 , 45 (4) : 1985 -1994 .
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Article Info
  • Receive Date：2024-09-06
  • Online Date：2026-03-19
  • Published：2025-04-20
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  • Received：2024-09-06
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Affiliations
    1.School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
    2.Key Laboratory of Yellow River Water Environment in Gansu Province, Lanzhou 730070, China
    3.Ministry of Education Engineering Research Center of Water Resource Comprehensive Utilization in Cold and Arid Regions, Lanzhou 730070, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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