标题: Metagenomic insights into the response of microbial metabolic function and extracellular polymeric substances from microalgae-bacteria consortia to fluoroquinolone antibiotics
作者: Qv, M (Qv, Mingxiang); Wu, QR (Wu, Qirui); Wang, W (Wang, Wei); Wang, HZ (Wang, Hanzhi); Zhu, LD (Zhu, Liandong)
来源出版物: JOURNAL OF ENVIRONMENTAL MANAGEMENT 卷: 381 文献号: 125283 DOI: 10.1016/j.jenvman.2025.125283 Early Access Date: APR 2025 Published Date: 2025 MAY
摘要: Microalgae-bacteria consortia (MBC) are considered a promising bioremediation technology for removing pollutants from swine wastewater. However, the overuse of antibiotics poses challenges to the effective functioning of MBC. In this study, the removal efficiency of nutrients in wastewater by MBC under different antibiotic concentrations (0, 1, 5, 10 and 50 mg/L) was evaluated. The changes of functional microbial abundance were elucidated and the response mechanism of MBC against antibiotics was investigated. Antibiotics inhibited the accumulation of MBC biomass and reduced the removal efficiency of ammonia nitrogen and total phosphorus in wastewater by 8.39 % and 8.74 % respectively. In addition, antibiotics affected the relative abundance of microorganisms (Raineyella, from 30.72 % to 15.96 %) and functional genes (glnA, gudB, NirK, NirBD, NarB, NapAB, NorBC and NosZEPS) involved in N metabolism. MBC could defend against the adverse effects of antibiotics by regulating the content of proteins in the extracellular polymeric substances.
作者关键词: Microalgae-bacteria consortia; Fluoroquinolone antibiotics; Extracellular polymeric substances; Functional gene; Microbial community
地址: [Qv, Mingxiang; Wu, Qirui; Wang, Wei; Wang, Hanzhi; Zhu, Liandong] Wuhan Univ, Sch Resource & Environm Sci, Hubei Key Lab Biomass Resources Chem & Environm Bi, Wuhan 430079, Peoples R China.
[Qv, Mingxiang; Wu, Qirui; Wang, Wei; Wang, Hanzhi; Zhu, Liandong] Wuhan Univ, Hubei Int Sci & Technol Cooperat Base Sustainable, Wuhan 430079, Peoples R China.
[Zhu, Liandong] Wuhan Univ, State Key Lab Water Resources Engn & Management, Wuhan 430072, Peoples R China.
通讯作者地址: Zhu, LD (通讯作者)，Wuhan Univ, Sch Resource & Environm Sci, Hubei Key Lab Biomass Resources Chem & Environm Bi, Wuhan 430079, Peoples R China.
Zhu, LD (通讯作者)，Wuhan Univ, Hubei Int Sci & Technol Cooperat Base Sustainable, Wuhan 430079, Peoples R China.
电子邮件地址: [email protected]
影响因子：8
