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This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
MALDI-TOF analysis of the lipopolysaccharide (LPS) extracted from control (A) and GABA-treated (B) P. fluorescens MF37. Each figure is a representative example of three different analysis. Arrows indicate peaks particularly modified between control and GABA-treated bacteria.