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. 2016 Aug 23;7:1313. doi: 10.3389/fmicb.2016.01313

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Copyright © 2016 Kimyon, Ulutürk, Nizalapur, Lee, Kutty, Beckmann, Kumar and Manefield.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Comparison of QS inhibitory effects of NAG with glucosamine (GlcN) and glucose at 5 mM on (A) CviR dependent violacein production with exogenous addition of 100 nM HHL and violacein extraction after 20 h batch incubation, at 2 mM (B) LuxR dependent GFP production with exogenous addition of 10 nM OHHL and measurement of fluorescence at 20 h and (C) LasR dependent GFP production without exogenous AHL addition, fluorescence measurement 8 h. All cultures were in triplicate. Error bars represent standard deviation. Asterisks indicate the significant differences in comparison to control samples (P < 0.01).