In Vitro Susceptibility and Florfenicol Resistance in Citrobacter Isolates and Whole-Genome Analysis of Multidrug-Resistant Citrobacter freundii

Table 6

Resistance genes encoded on the C. freundii R47 genome.

Genome	Class of resistance genes	Resistance genes
Chromosome	β-Lactam	blaCMY-97
pR47-54	Amphenicol	floR
	Quinolone	qnrB6
	Aminoglycoside	aadA16 and aacA4cr
	Trimethoprim	dfrA27
	Quaternary ammonium compounds	2qacEΔ1
	Sulfonamide	2sul1
	Rifampin	Arr-3
	Mercury	merE, merD, merA, merC, merP, merT, and merR
pR47-309	β-Lactam	blaTEM-1b, blaSHV-12, and blaDHA-1
	Quinolone	qnrB4
	Tetracycline	tetA(D) and tetR(D)
	Aminoglycoside	aac3, aac(6)-IIc, aac6, strA, and strB
	Macrolide	ereA2
	Sulfonamide	2sul1
	Quaternary ammonium compounds	qacEΔ1 and ΔqacEΔ1
	Trimethoprim	dfrA19
	Rifampin	Arr
	Amphenicol	2catA2
	Tellurite	terY3, terY2, terX, terY1, terW, terZ, terA, terB, terC, terD, terE, and terF
	Mercury	merE, merD, merA, merC, merP, merT, and merR
	Copper	ΔcopS and copE1
	Lead	pbrR, pbrA, and pbrB/pbrC
	Nickel/cobalt	rcnA and rcnR