前往化源商城

Bioresource Technology 2013-02-01

Effect of N-acy-l-homoserine lactones-like molecules from aerobic granules on biofilm formation by Escherichia coli K12.

Ting-ting Ren, Xiao-yan Li, Han-qing Yu

文献索引:Bioresour. Technol. 129 , 655-8, (2013)

全文:HTML全文

摘要

A laboratory study was conducted to investigate the production of quorum sensing (QS) molecules by aerobic granules in membrane-partitioned bioreactor. Flow-chamber (FC) tests with Escherichia coli K12 demonstrated that granules induced more attached growth of E. coli cells than activated sludge flocs, leading to more cell adhesion and biofilm formation on the FC cover slide. Using the thin-layer chromatography, N-acy-l-homoserine lactones (AHLs) with acyl chains shorter than 10 carbons were detected in the liquid phase of granular sludge. Organic substances extracted with acidified ethyl acetate from the supernatant of granular sludge promoted the adhesion and growth of E. coli cells on the glass surface. AHL-like signal molecules were apparently produced by granules and might be involved in the formation of granules and the maintenance of granular structures during wastewater treatment.Copyright © 2012 Elsevier Ltd. All rights reserved.

相关化合物

结构式 名称/CAS号 全部文献
γ-丁内酯 结构式 γ-丁内酯
CAS:96-48-0
α-氨基-γ-丁内酯氢溴酸盐 结构式 α-氨基-γ-丁内酯氢溴酸盐
CAS:6305-38-0
二氢-3-氨基-2-(3H)-呋喃酮 结构式 二氢-3-氨基-2-(3H)-呋喃酮
CAS:1192-20-7
L-Homoserine lactone hydrochloride 结构式 L-Homoserine lactone hydrochloride
CAS:2185-02-6
L-高丝氨酸内酯盐酸盐 结构式 L-高丝氨酸内酯盐酸盐
CAS:2185-03-7