The diversity of AHLs in WWTPs needs to be assessed more rigorously

Hongxin Mu; Qiuju Liu; Deyuan Dong; Haidong Hu; Lili Ding; Bing Wu; Jinfeng Wang; Hongqiang Ren

Chemical Engineering Journal Advances (Nov 2022)

The diversity of AHLs in WWTPs needs to be assessed more rigorously

Hongxin Mu,
Qiuju Liu,
Deyuan Dong,
Haidong Hu,
Lili Ding,
Bing Wu,
Jinfeng Wang,
Hongqiang Ren

Affiliations

Hongxin Mu: State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, PR China
Qiuju Liu: State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, PR China
Deyuan Dong: State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, PR China
Haidong Hu: State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, PR China
Lili Ding: State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, PR China
Bing Wu: State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, PR China
Jinfeng Wang: Corresponding author.; State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, PR China
Hongqiang Ren: State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, PR China

Journal volume & issue: Vol. 12
p. 100391

Abstract

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Quorum sensing (QS) plays a vital role in multiple species' inter-communication in man-made ecosystems, especially in bioaugmentation technologies. The role of various acyl-homoserine lactone (AHL), especially thirteen AHL types mediated QS in bacterial communities has been widely explored in wastewater treatment plants (WWTPs), and the results indicated that various AHLs presented different functions. Here 47 types of AHL from 2680 references were collected for the first time, with 27 AHLs identified in three engineered ecosystems (i.e., oxidation ditch-, anaerobic-anoxic-oxic- and cyclic activated sludge technology-based bioprocesses) using liquid chromatography-high resolution mass spectrometry (LCHRMS) analysis. Specifically, 70.4% of the detected AHLs are newly reported, with C14:2-HSL and C18:2-HSL showing relatively high response values. These results emphasize the high complexity of AHL-based QS systems and that the newly detected AHLs need to be comprehensively investigated due to their high application potential.

Published in Chemical Engineering Journal Advances

ISSN: 2666-8211 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Chemical technology: Chemical engineering
Website: https://www.journals.elsevier.com/chemical-engineering-journal-advances

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