Transferable integrons of Gram-negative bacteria isolated from the gut of a wild boar in the buffer zone of a national park

Table 1 Characteristics of integrons and antibiotic resistance patterns of bacterial strains isolated from wild boar gut

Strain no.	Species	Integrase	Size of the integron’s variable part	Gene cassette	Antibiotic resistance pattern	Antibiotic resistance pattern of transconjugant
D1/5	Hafnia alvei	intI2	1.6 kb	sat2–aadA1	STR^a, CHL, PIP, CAZ, SUL, TMP, TET	STR, CHL, PIP, CAZ, SUL, TMP, TET, RIF^b
D1/7	Escherichia coli	intI2	1.6 kb	sat2–aadA1	STR, CHL, TIC, CIP, NOR, CTX, SUL, TMP, SXT, TET, ATM	STR, CHL, TIC, CTX, SUL, TMP, SXT, TET, ATM, RIF
D2/2	E. coli	intI2	1.9 kb	dfrA1–sat2–aadA1	STR, CTX, TIC, SUL, TMP, SXT, TET	STR, CTX, TIC, SUL, TMP, SXT, TET, RIF
D3/1	Serratia odorifera	intI2	1.6 kb	sat2–aadA1	STR, NET, CHL, TIC, CAZ, CTX, SUL, TMP, SXT, TET, ATM	STR, NET, CHL, TIC, CAZ, CTX, SUL, TMP, SXT, TET, ATM, RIF
D5/4	Pseudomonas sp.	intI1	0.18 kb	None	STR, NET, TIC, CTX, CFP, SUL, TMP, SXT, ATM	STR, NET, TIC, CTX, CFP, SUL, TMP, SXT, ATM, RIF

^aAntibiotics: ATM aztreonam, CAZ ceftazidime, CFP cefoperazone, CHL chloramphenicol, CIP ciprofloxacin, CTX cefotaxime, NET netilmicin, NOR norfloxacin, PIP piperacillin, RIF rifampicin, STR streptomycin, SUL sulfamethoxazole, SXT sulfamethoxazole + trimethoprim, TET tetracycline TIC ticarcillin, TMP trimethoprim, TZP piperacillin + tazobactam
^b The recipient strain E. coli J-53 is resistant to rifampicin

ISSN: 1869-2044