The enrichment culture yielded seven different bacterial groups: Janibacter species were dominant (16 of 30 colonies) and other bacterial groups, Arthrobacter (GenBank Accession No. KC012603), Calidifontibacter (KC549652), Erythrobacter (KC549655), Microbacterium (KC549651), Rhodococcus
(KC549653) and Pseudomonas (KC549654), were isolated as minorities, which matched well the DGGE bands (Fig. 1)