Bacterial fruit blotch caused by Acidovorax citrulli presents a serious threat to watermelon, melon and other cucurbits industry.As a gram negative bacteria,A.citrulli harbors many RND multidrug efflux pumps protein coding genes.RND multidrug efflux pumps play an important role in the bacteria multidrug resistance and bacteria/plant interactions.In order to investigate the contribution of RND multidrug efflux pumps to antibiotic resistance and environmental adaption of A.citrulli,we studied their functions ...