DGGE fingerprints of the bacterial 16S rRNA gene V3 region amplified from soil A, B, C. The DNA extracted from soil directly (SA, SB, SC), agar plate washes from nutrient ager (NA, NB, NC) and MSM agar (MA, MB, MC). The individual DNA bands selected for sequencing are numbered 1–59. Ladder M: M1 - Bacillus sp., M2 - Enterobacter cancerogenus, M3 - Enterobacter sp., M4 - Pseudomonas putida