Characteristics of bacteria of Micrococcaceae family, isolated from different biotopes of salt mining area (Perm region)

The data of the conducted studies of Micrococcaceae family bacteria isolated from the salt mining region of Verkhnekamskoe potash deposit (Berezniki, Solikamsk, Perm krai) were collected and analyzed. It was shown that the studied strains are characterized by a large species diversity and are closely related to the genus Arthrobacter (species A. srystallopoietes, A. pityocampae, A. pascens), Glutamicibacter (G.nicotianae, G.halophytocola, G.arilaitensis) and Pseudoarthrobacter (P. oxydans). Strains of the family Micrococcaceae have broad substrate specificity and are capable of destroying a number of mono- and polyaromatic hydrocarbons, including ortho-phthalate and dibutyl phthalate. These strains were halotolerant, grew in the enriched medium in the presence of up to 11% NaCl and in the mineral medium on ortho-phthalate / naphthalene - in the presence of 6-9% salt. Large plasmids ranging in size from 300 to 460 kb were detected in the cells of 5 strains. Bacteria of the family Micrococcaceae (genera Arthrobacter, Glutamicibacter, Pseudoarthrobacter), isolated from the saline area, are promising for the development of new biological methods for cleaning contaminated/ saline environment.