The data on the taxonomy and distribution of bacteria of the family Micrococcaceae isolated from ecosys-tems with different degrees of anthropogenic impact (Perm Territory: Perm, Berezniki, Solikamsk, Osa) are analyzed. The phylogenetic diversity and wide distribution of the family Micrococcaceae representa-tives in various biotopes of the Verkhnekamskoe salt deposit mining area are shown. A variety of species of the Micrococcaceae family bacteria was revealed in the soil and rhizosphere of plants growing near salt dumps. Based on the analysis of the 16S rRNA gene, the studied strains of the family Micrococca-ceae were assigned to seven genera: Arthrobacter, Pseudoarthrobacter, Glutamicibacter, Micrococcus, Kocuria, Nesterenkonia, Rothia. The studied cultivated bacteria of the family Micrococcaceae, isolated from ecotopes with extreme environmental conditions, are promising for their further use for biotechno-logical purposes.
Eight moderately halotolerant naphthalene-degrading strains of the genus Rhodococcus isolated from soil samples and slime pit bottom sediment of the Verkhnekamsk salt mining region of Russia were characterized by PCR amplification of repetitive bacterial DNA elements (rep-PCR) and identified by 16S ribosomal RNA gene sequence analysis. The diversity of their dioxygenase (nar-like) genes was investigated as these genes are known to be involved in naphthalene-degradation. The analysis of the nar-like genes identified revealed their heterogeneity in the strains under study and identity to the known sequences of nar-like genes of previously characterized from members of the genus Rhodococcus.
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