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Colonization and diversity of ammonia-oxidizing microorganisms on microplastics in drinking water systems
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Jia NIU1, 2, Zhi-da JIANG1, Jia-yan XU3, Hua-cheng XU4, Jian-ying YU5, Xian-hua LIU6, Kai-qin XU1, Xiao-chen CHEN1, *
China Environmental Science | 2025, 45(8) : 4628 - 4637
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China Environmental Science | 2025, 45(8): 4628-4637
• Emerging Contaminants and Toxicology •
Colonization and diversity of ammonia-oxidizing microorganisms on microplastics in drinking water systems
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Jia NIU1, 2, Zhi-da JIANG1, Jia-yan XU3, Hua-cheng XU4, Jian-ying YU5, Xian-hua LIU6, Kai-qin XU1, Xiao-chen CHEN1, *
Affiliations
  • 1.Innovation Center for Soil Remediation and Restoration Technologies, College of Environment and Safety Engineering, Fuzhou University, Fuzhou 350108, China
  • 2.Fujian Engineering Research Center of Water Pollution Control and System Intelligence Technology, School of Ecological Environment and Urban Construction, Fujian University of Technology, Fuzhou 350118, China
  • 3.Quanzhou Lanshen Environmental Protection Research Institute Co. Ltd., Quanzhou 362000, China
  • 4.Fujian Lanshen Environmental Protection Technology Co. Ltd., Quanzhou 362000, China
  • 5.The Second Geological Exploration Institute, China Metallurgical Geology Bureau, Fuzhou 350108, China
  • 6.School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China
Published: 2025-08-20
Outline
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This study investigated the colonization process of ammonia-oxidizing microorganisms (AOMs) on five common types of microplastics (MPs) as well as the potential nitrification niches of MPs in water supply systems, with the methods of biofilm simulation reactors, physicochemical characterization of MPs and microbiological analysis techniques. The results indicated that chlorination and microbial colonization led to an increase in the crystallinity of microplastics and the formation of hydrophilic groups such as carbonyl and hydroxyl moieties. The abundances of amoA genes of AOMs on microplastics ranged from (1.54±0.02) × 10 to (3.07±0.64) × 101 copies/g. Comammox was predominant on most of the microplastics. Ammonia-oxidizing archaea (AOA), which was highly chlorine-resistant, was found to be predominant on the MPs only after chlorination for 42days. The total abundance of AOMs exhibited a positive correlation with microplastic crystallinity on unchlorinated microplastics, which was particularly obvious on higher intrinsic crystallinity MPs, i.e., polyethylene (PE) and polypropylene (PP). However, this correlation was not observed after chlorination treatment. Diversity analysis of AOMs colonizing on microplastics revealed that AOA on unchlorinated MPs were more closely related to soil-derived AOA. On the contrary, AOA on chlorinated MPs was more closely to aquatic AOA.

Drinking Water  /  Microplastic  /  Ammonia-Oxidizing Microorganisms  /  amoA  /  High-Throughput Sequencing  /  qPCR
牛佳, 蒋志达, 徐佳燕, 许华诚, 余健英, 刘宪华, 徐开钦, 陈晓晨. 饮用水系统中微塑料上氨氧化微生物的定植与多样性. 中国环境科学, 2025 , 45 (8) : 4628 -4637 .
Jia NIU, Zhi-da JIANG, Jia-yan XU, Hua-cheng XU, Jian-ying YU, Xian-hua LIU, Kai-qin XU, Xiao-chen CHEN. Colonization and diversity of ammonia-oxidizing microorganisms on microplastics in drinking water systems[J]. China Environmental Science, 2025 , 45 (8) : 4628 -4637 .
Appendix
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Year 2025 volume 45 Issue 8
89
16
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Article Info
  • Receive Date：2024-12-26
  • Online Date：2026-10-08
  • Published：2025-08-20
Article Data
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History
  • Received：2024-12-26
Funding
Affiliations
    1.Innovation Center for Soil Remediation and Restoration Technologies, College of Environment and Safety Engineering, Fuzhou University, Fuzhou 350108, China
    2.Fujian Engineering Research Center of Water Pollution Control and System Intelligence Technology, School of Ecological Environment and Urban Construction, Fujian University of Technology, Fuzhou 350118, China
    3.Quanzhou Lanshen Environmental Protection Research Institute Co. Ltd., Quanzhou 362000, China
    4.Fujian Lanshen Environmental Protection Technology Co. Ltd., Quanzhou 362000, China
    5.The Second Geological Exploration Institute, China Metallurgical Geology Bureau, Fuzhou 350108, China
    6.School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, 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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