The complete genome, comparative and functional analysis of Stenotrophomonas maltophilia reveals an organism heavily shielded by drug resistance determinants

被引：403

作者：

Crossman, Lisa C. ^{[1
]}

Gould, Virginia C. ^{[2
]}

Dow, J. Maxwell ^{[3
]}

Vernikos, Georgios S. ^{[1
]}

Okazaki, Aki ^{[2
]}

Sebaihia, Mohammed ^{[1
]}

Saunders, David ^{[1
]}

Arrowsmith, Claire ^{[1
]}

Carver, Tim ^{[1
]}

Peters, Nicholas ^{[1
]}

Adlem, Ellen ^{[1
]}

Kerhornou, Arnaud ^{[1
]}

Lord, Angela ^{[1
]}

Murphy, Lee ^{[1
]}

Seeger, Katharine ^{[1
]}

Squares, Robert ^{[1
]}

Rutter, Simon ^{[1
]}

Quail, Michael A. ^{[1
]}

Rajandream, Mari-Adele ^{[1
]}

Harris, David ^{[1
]}

Churcher, Carol ^{[1
]}

Bentley, Stephen D. ^{[1
]}

Parkhill, Julian ^{[1
]}

Thomson, Nicholas R. ^{[1
]}

Avison, Matthew B. ^{[2
]}

机构：

[1] Wellcome Trust Sanger Inst, Pathogen Sequencing Unit, Cambridge CB10 1SA, England

[2] Univ Bristol, Sch Med Sci, Dept Cellular & Mol Med, Bristol BS8 1TD, Avon, England

[3] Natl Univ Ireland, Biosci Inst, Dept Microbiol, Biomerit Res Ctr, Cork, Ireland

来源：

GENOME BIOLOGY | 2008年 / 9卷 / 04期

基金：

英国惠康基金;

关键词：

D O I：

10.1186/gb-2008-9-4-r74

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

Background: Stenotrophomonas maltophilia is a nosocomial opportunistic pathogen of the Xanthomonadaceae. The organism has been isolated from both clinical and soil environments in addition to the sputum of cystic fibrosis patients and the immunocompromised. Whilst relatively distant phylogenetically, the closest sequenced relatives of S. maltophilia are the plant pathogenic xanthomonads. Results: The genome of the bacteremia-associated isolate S. maltophilia K279a is 4,851,126 bp and of high G+C content. The sequence reveals an organism with a remarkable capacity for drug and heavy metal resistance. In addition to a number of genes conferring resistance to antimicrobial drugs of different classes via alternative mechanisms, nine resistance-nodulation-division (RND)-type putative antimicrobial efflux systems are present. Functional genomic analysis confirms a role in drug resistance for several of the novel RND efflux pumps. S. maltophilia possesses potentially mobile regions of DNA and encodes a number of pili and fimbriae likely to be involved in adhesion and biofilm formation that may also contribute to increased antimicrobial drug resistance. Conclusion: The panoply of antimicrobial drug resistance genes and mobile genetic elements found suggests that the organism can act as a reservoir of antimicrobial drug resistance determinants in a clinical environment, which is an issue of considerable concern.

引用

页数：13

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