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Table 3 Distributions of amino glycoside resistant genes and class I integron genes among the STM resistant isolates harvested from various STM exposures of aerobic-biofilm reactor

From: Culture-based study on the development of antibiotic resistance in a biological wastewater system treating stepwise increasing doses of streptomycin

S. no Bacterial strains name 0 mg L−1, STM 0.1 mg L−1, STM 1 mg L−1, STM 5 mg L−1, STM 25 mg L−1, STM 50 mg L−1, STM
1 Aeromonas allosaccharophila _     aacA4, strA, strB, Int1, 3′-CS (5) aacA4, aadA, strA, strB, Int1, 3′-CS (6)
2 Aeromonas veronii _ aacA4, aadA, Int1, 3′-CS (4)    aacA4, strA, strB, Int1, 3′-CS (5)  
3 Bacillus anthracis Int1, 3′-CS (2) aacA4, aadA, strA, strB, Int1, 3′-CS (6) aacA4, aadA, strA, strB, Int1, 3′-CS (6) aacA4, aadA, strA, strB, Int1, 3′-CS (6) aacA4, aadA, strA, strB, Int1, 3′-CS (6) aacA4, aadA, strB (3)
4 Chryseobacterium lactis aacA4, strA, strB, 3′-CS (4) aacA4, aadA, strA, strB, Int1, 3′-CS (6) aacA4, aadA, aadE, strA, strB, Int1, 3′-CS (7) aacA4, aadA, aphA1, strA, strB, Int1, 3′-CS (7) aacA4, aadA, strA, strB, Int1, 3′-CS (6)  
5 Comamonas testosteroni aacA4, strA, strB, 3′-CS (4) aacA4, strA, strB, Int1, 3′-CS (5) aacA4, strA, strB, Int1, 3′-CS (5) aacA4, strA, strB, Int1, 3′-CS (5)   
6 Lactococcus chungangensis strA, strB, 3′-CS (3) aacA4, aadA, strA, strB, Int1, 3′-CS (6) aacA4, aadA, aadB, aadE, strA, strB, Int1, 3′-CS (8) aacA4, aadA, aadE strA, strB, Int1, 3′-CS (7) aacA4, aadA, aadE strA, strB, Int1, 3′-CS (7) aacA4, aadA, aadE, strA, strB, Int1, 3′-CS (7)
7 Lactococcus raffinolactis strA, strB, 3′-CS (3)   aacA4, aadA, aadE, strA, strB, Int1, 3′-CS (7)    
8 Microbacterium maritypicum     aacA4, aadA, strA, strB, Int1, 3′-CS (6) aacA4, aadA, strA, strB, Int1, 3′-CS (6) aacA4, aadA, strA, strB, Int1, 3′-CS (6)
9 Paracoccus yeei Int1, 3′-CS (2) aacA4, aadA, aadB, strA, strB, Int1, 3′-CS (7)     
10 Pseudoxanthomonas mexicana aacA4, aadA, 3′-CS (3)    aacA4, aadA, 3′-CS (3) aacA4, aadA, aadB, strB, Int1, 3′-CS (6) aacA4, aadA, aadB, strB, Int1, 3′-CS (6)
11 Stenotrophomonas acidaminiphila strB, Int1, 3′-CS (3) aacA4, aadA, aadB, aphA2, strA, strB, Int1, 3′-CS (8)     
  1. Based on the MIC values, 40 distinguished streptomycin resistant isolates (includes 11 different strains) from various STM stages were selected for the ARGs analysis. Totally 11 ARGs were analyzed by the conventional PCR method
  2. The number in parenthesis indicates that number of ARGs identified in STM resistant bacteria simultaneously and ‘_’ indicates the absence of ARGs in the corresponding bacteria
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