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Author:

Cui, Yingchao (Cui, Yingchao.) | Gao, Jingfeng (Gao, Jingfeng.) (Scholars:高景峰) | Zeng, Liqin (Zeng, Liqin.) | Guo, Yi (Guo, Yi.) | Xu, Hongxin (Xu, Hongxin.) | Zhao, Mingyan (Zhao, Mingyan.)

Indexed by:

EI Scopus SCIE

Abstract:

The spread of antibiotic resistance genes (ARGs), including intracellular ARGs (i-ARGs) and extracellular ARGs (e-ARGs), has become a global problem that cannot be ignored. This study clarified the fates of e-ARGs and iARGs in floc sludge reactor (FS), granular sludge reactor (GS) and biofilm reactor (BF) under the stress of acetaminophen (APAP). The results showed that the risk of ARGs transmission, especially for e-ARGs, in FS and BF could increase with the increasing times of APAP treatment, except for that in GS. The fates of i-ARGs in three different systems were similar, which were mainly clustered as the efflux pumps mechanism. The secretion and disintegration of extracellular polymeric substances mainly affected the fates of e-ARGs. In the three systems, the complexity of network relationships between ARGs and microbial communities was FS, GS and BF. Partial leastsquares path model analysis indicated that bacterial community directly contributed to the variations of e-ARGs and i-ARGs under APAP treatment in the three systems, playing a leading role. And i-ARGs and protein secondary structure showed direct effects on e-ARGs. This study indicated that e-ARGs in complex systems were more susceptible to be influenced, which should be paid more attention to prevent further propagation of ARGs.

Keyword:

Co-occurrence modules Intracellular antibiotic resistance genes Extracellular antibiotic resistance genes Acetaminophen Microbial aggregates

Author Community:

  • [ 1 ] [Cui, Yingchao]Beijing Univ Technol, Fac Environm & Life, Natl Engn Lab Adv Municipal Wastewater Treatment &, Beijing 100124, Peoples R China
  • [ 2 ] [Gao, Jingfeng]Beijing Univ Technol, Fac Environm & Life, Natl Engn Lab Adv Municipal Wastewater Treatment &, Beijing 100124, Peoples R China
  • [ 3 ] [Zeng, Liqin]Beijing Univ Technol, Fac Environm & Life, Natl Engn Lab Adv Municipal Wastewater Treatment &, Beijing 100124, Peoples R China
  • [ 4 ] [Guo, Yi]Beijing Univ Technol, Fac Environm & Life, Natl Engn Lab Adv Municipal Wastewater Treatment &, Beijing 100124, Peoples R China
  • [ 5 ] [Xu, Hongxin]Beijing Univ Technol, Fac Environm & Life, Natl Engn Lab Adv Municipal Wastewater Treatment &, Beijing 100124, Peoples R China
  • [ 6 ] [Zhao, Mingyan]Beijing Univ Technol, Fac Environm & Life, Natl Engn Lab Adv Municipal Wastewater Treatment &, Beijing 100124, Peoples R China

Reprint Author's Address:

  • [Gao, Jingfeng]Beijing Univ Technol, Fac Environm & Life, Natl Engn Lab Adv Municipal Wastewater Treatment &, Beijing 100124, Peoples R China;;

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Source :

JOURNAL OF HAZARDOUS MATERIALS

ISSN: 0304-3894

Year: 2023

Volume: 461

1 3 . 6 0 0

JCR@2022

ESI Discipline: ENGINEERING;

ESI HC Threshold:19

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 15

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 3

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