sentence: The aiiA homologue was not detected in B. sonorensis L62 , suggesting the presence of a different AHL-degrading gene in the strain L62.In addition to Bacillus spp ., a wide variety of bacteria have been shown to have QQ capability , including A. tumefaciens producing AttM and AiiB [ 28,29 ] , Arthrobacter producing AhlD [ 18 ] , K. pneumonia producing AhlK [ 18 ] , Ochrobactrum producing AidH [ 30 ] , Microbacterium testaceum producing AiiM [ 31 ] , Solibacillus silvestris producing AhlS [ 32 ] and Rhodococcus strains W2 , LS31 and PI33 producing QsdA [ 16,33 ] .