9Bunny K L, Hall R M, Stokes H W.New mobile gene cassettes containing an aminogly consider resistance gene, aacA7, and achlo-ram phenicol resistance gene, catB3, in an integron in pBWH301 [J].Antimicrob Agents Chemother, 1995,39:686 -693.
3Brien O T F,Mayer K H, Hopkins J D,et al. Antibiotic Resistance Genes:Ecology,Transfer,and Expression[M]. Cold Spring Harbor Laboratory,Cold Spring Harbor,NY. 1986:3-15.
4Kadavy D R,Hornby J-M, Haverkost T,et al. Natural antibiotic resistance of bacteria isolated from larvae of the oil fly, Helaeomyia petrolei[J]. Appl Environ Microbiol,2000,66,4615-4619.
5Benveniste R, Davies J. Aminoglyeoside antibiotieinaetivating enzymes in aetinomycetes similar to those present in clinical isolates of antibiotic-resistant bacteria[J]. Proe Natl Aead Sci, 1973.70:2276-2280.
6Mazel D,Davies J. Antibiotic resistance in microbes[J]. Cell Mol Life Sci, 1999,56:742-754.
7Bunny K L, Hall R M, Stokes H W. New mobile gene cassettes containing an aminoglycoside resistance gene, aacA7, and a chloramphenicol resistance gene, catB3, in an integron in pBWH301[J]. Antimicrob Agents Chemother, 1995,39 : 686-693.
8Abigail A Salyers and Carlos F,Amabile-Cuevas. Why are antibiotic resistance genes so resistant to elimination[J]. Antimicrobial Agents and Chemotherapy, 1997,41(11) : 2321-2325.
9Courvalin P. Transfer of antibiotic resistance genes between grampositive and gram-negative bacteria [J ]. Antimicrob Agents Chemother, 1994,38 : 1447-1451.
10Nielsen K M, Bones A M, van Elsas J D. Induced natural transformation of Acinetobacter calcoaceticus in soil microcosms [J].Appl Environ Microbiol, 1997,63 : 3972-3977.