Investigation on the effect of sonic stimulation on Xanthomonas campestris at the whole transcriptome level

A gram-negative bacterium Xanthomonas campestris was subjected to sonic stimulation with sound pertaining to 1000 Hz at three different sound intensities. The X. campestris culture subjected to sonic stimulation at 66 dB produced 1.69 fold higher exopolysaccharide. Whole transcriptome analysis of this sonic-stimulated culture revealed a total of 115 genes expressed differentially in the sonic-stimulated culture, majority of which were coding for different proteins including enzyme. This study demonstrates the property of the test bacterium of being responsive to sonic/vibrational stimulation.