Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1093/gbe/evx162 |
The Environmental Acinetobacter baumannii Isolate DSM30011 Reveals Clues into the Preantibiotic Era Genome Diversity, Virulence Potential, and Niche Range of a Predominant Nosocomial Pathogen | |
Repizo, Guillermo D.1,2; Viale, Alejandro M.2; Borges, Vitor3; Cameranesi, Maria M.2; Taib, Najwa4; Espariz, Martin2; Brochier-Armanet, Celine4; Gomes, Joao Paulo3; Salcedo, Suzana P.1 | |
通讯作者 | Repizo, Guillermo D. |
来源期刊 | GENOME BIOLOGY AND EVOLUTION |
ISSN | 1759-6653 |
出版年 | 2017 |
卷号 | 9期号:9页码:2292-2307 |
英文摘要 | Acinetobacter baumannii represents nowadays an important nosocomial opportunistic pathogen whose reservoirs outside the clinical setting are obscure. Here, we traced the origins of the collection strain A. baumannii DSM30011 to an isolate first reported in 1944, obtained from the enriched microbiota responsible of the aerobic decomposition of the resinous desert shrub guayule. Whole-genome sequencing and phylogenetic analysis based on core genes confirmed DSM30011 affiliation to A. baumannii. Comparative studies with 32 complete A. baumannii genomes revealed the presence of 12 unique accessory chromosomal regions in DSM30011 including five encompassing phage-related genes, five containing toxin genes of the type-6 secretion system, and one with an atypical CRISPRs/cas cluster. No antimicrobial resistance islands were identified in DSM30011 agreeing with a general antimicrobial susceptibility phenotype including folate synthesis inhibitors. The marginal ampicillin resistance of DSM30011 most likely derived from chromosomal ADC-type ampC and bla(OXA-51)-type genes. Searching for catabolic pathways genes revealed several clusters involved in the degradation of plant defenses including woody tissues and a previously unreported atu locus responsible of aliphatic terpenes degradation, thus suggesting that resinous plants may provide an effective niche for this organism. DSM30011 also harbored most genes and regulatory mechanisms linked to persistence and virulence in pathogenic Acinetobacter species. This strain thus revealed important clues into the genomic diversity, virulence potential, and niche ranges of the preantibiotic era A. baumannii population, and may provide an useful tool for our understanding of the processes that led to the recent evolution of this species toward an opportunistic pathogen of humans. |
英文关键词 | comparative genomics preantibiotic era bacterium virulence factors CRISPRs/cas |
类型 | Article |
语种 | 英语 |
国家 | France ; Argentina ; Portugal |
收录类别 | SCI-E |
WOS记录号 | WOS:000412147400011 |
WOS关键词 | RPOB GENE ; IDENTIFICATION ; RESISTANCE ; SEQUENCE ; BACTERIAL ; MOTILITY ; ISLANDS ; VISUALIZATION ; DECOMPOSITION ; CATABOLISM |
WOS类目 | Evolutionary Biology ; Genetics & Heredity |
WOS研究方向 | Evolutionary Biology ; Genetics & Heredity |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/199161 |
作者单位 | 1.Univ Lyon, CNRS, Lab Mol Microbiol & Struct Biochem, UMR5086, Lyon, France; 2.Univ Nacl Rosario, CONICET, Fac Ciencias Bioquim & Farmaceut, Dept Microbiol,Inst Biol Mol & Celular Rosario,IB, Rosario, Santa Fe, Argentina; 3.Natl Inst Hlth, Dept Infect Dis, Bioinformat Unit, Lisbon, Portugal; 4.Univ Lyon 1, CNRS, Lab Biometrie & Biol Evolut, UMR5558, Villeurbanne, France |
推荐引用方式 GB/T 7714 | Repizo, Guillermo D.,Viale, Alejandro M.,Borges, Vitor,et al. The Environmental Acinetobacter baumannii Isolate DSM30011 Reveals Clues into the Preantibiotic Era Genome Diversity, Virulence Potential, and Niche Range of a Predominant Nosocomial Pathogen[J],2017,9(9):2292-2307. |
APA | Repizo, Guillermo D..,Viale, Alejandro M..,Borges, Vitor.,Cameranesi, Maria M..,Taib, Najwa.,...&Salcedo, Suzana P..(2017).The Environmental Acinetobacter baumannii Isolate DSM30011 Reveals Clues into the Preantibiotic Era Genome Diversity, Virulence Potential, and Niche Range of a Predominant Nosocomial Pathogen.GENOME BIOLOGY AND EVOLUTION,9(9),2292-2307. |
MLA | Repizo, Guillermo D.,et al."The Environmental Acinetobacter baumannii Isolate DSM30011 Reveals Clues into the Preantibiotic Era Genome Diversity, Virulence Potential, and Niche Range of a Predominant Nosocomial Pathogen".GENOME BIOLOGY AND EVOLUTION 9.9(2017):2292-2307. |
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