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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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