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. 2017 Sep 12;7:11262. doi: 10.1038/s41598-017-11361-3

Figure 1.

Figure 1

Deletion of the GacS periplasmic detection domain affects biofilm formation. (a) Biofilm production in glass tubes (upper panel) is illustrated and quantified after crystal violet-staining (lower panel). Biofilm levels represent mean values (with error bars) obtained from three independent experiments. *, **, *** and ns refer to p < 0.05, p < 0.01, p < 0.001 and non-significant difference, respectively, according to the Wilcoxon-Mann-Whitney tests. (b) Biofilm formation is monitored by confocal laser scanning microscopy after 12 h. The extracted z images and their respective xy and xz planes are shown.