The amplified MT gene
sequence of AGB-1 exhibited 99% similarity to the MT gene
sequence ofPseudomonassp. Thus the isolate contains HM marker
genes that may confer HM resistance. Detection of these genes also
provides presumptive evidence of their roles in metalcontaminated environments. HM-resistance genes ArsB, ACR3(1),
aoxB and bmtA have been identified in several bacterial spp.
(Mukhopadhyay et al., 2002; Sauge-Merle et al., 2012).