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[期刊论文]

Response of bacterial and micro-eukaryotic communities to spatio-temporal fluctuations of wastewater in full scale constructed wetlands

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author:

Li, X. (Li, X..) [1] | Xia, M. (Xia, M..) [2] | Liu, L. (Liu, L..) [3] | Unfold

Indexed by:

Scopus

Abstract:

How microbial communities respond to wastewater fluctuations is poorly understood. Full-scale surface flow constructed wetlands (SFCWs) were constructed for investigating microbial communities. Results showed that influent wastewater changed sediment bacterial community composition seasonally, indicating that a single bacterial taxonomic group had low resistance (especially, Actinobacteriota and Gammaproteobacteria). However, copy numbers of 16S rRNA, ammonia oxidizing archaea, ammonia oxidizing bacteria, nirS and nirK in the first stage SFCWs were 2.49 × 1010, 3.48 × 109, 5.76 × 106, 8.77 × 108 and 9.06 × 108 g−1 dry sediment, respectively, which remained stable between seasons. Moreover, decreases in the nitrogen concentration in wastewater, changed microbial system state from heterotrophic to autotrophic. Micro-eukaryotic communities were more sensitive to wastewater fluctuations than bacterial communities. Overall, results revealed that microbial communities responded to spatio-temporal fluctuations in wastewater through state changes and species asynchrony. This highlighted complex processes of wastewater treatment by microbial components in SFCWs. © 2024 Elsevier Ltd

Keyword:

Asynchrony Compensatory dynamics Microbial community stability Nitrogen removal Substrate

Community:

  • [ 1 ] [Li X.]Key Laboratory of Agro-ecological Processes in Subtropical Regions and Changsha Research Station for Agricultural & Environmental Monitoring, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Hunan, 410125, China
  • [ 2 ] [Xia M.]Key Laboratory of Agro-ecological Processes in Subtropical Regions and Changsha Research Station for Agricultural & Environmental Monitoring, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Hunan, 410125, China
  • [ 3 ] [Liu L.]College of Biological Science and Engineering, Fuzhou University, Fuzhou, 350108, China
  • [ 4 ] [Li Y.]Key Laboratory of Agro-ecological Processes in Subtropical Regions and Changsha Research Station for Agricultural & Environmental Monitoring, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Hunan, 410125, China
  • [ 5 ] [Wu J.]Key Laboratory of Agro-ecological Processes in Subtropical Regions and Changsha Research Station for Agricultural & Environmental Monitoring, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Hunan, 410125, China

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Source :

Bioresource Technology

ISSN: 0960-8524

Year: 2024

Volume: 399

9 . 7 0 0

JCR@2023

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 2

30 Days PV: 0

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