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Draft Genome Sequences of Cronobacter muytjensii Cr150, Cronobacter turicensis Cr170, and Cronobacter sakazakii Cr611.

ABSTRACT: The sequencing and bioinformatics analyses of isolates Cr150, Cr170, and Cr611 from powdered infant formula indicate that the three strains represent new members in the Cronobacter muytjensii, Cronobacter turicensis, and Cronobacter sakazakii groups, respectively.

SUBMITTER: Zizelski Valenci G

PROVIDER: S-EPMC7595941 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature

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Draft Genome Sequences of Cronobacter muytjensii Cr150, Cronobacter turicensis Cr170, and Cronobacter sakazakii Cr611.

Zizelski Valenci Gal G Rubinstein Mor M Afriat Reuven R Rosencwaig Shira S Dveyrin Zeev Z Rorman Efrat E Nissan Israel I

Microbiology resource announcements 20201029 44

The sequencing and bioinformatics analyses of isolates Cr150, Cr170, and Cr611 from powdered infant formula indicate that the three strains represent new members in the Cronobacter muytjensii, Cronobacter turicensis, and Cronobacter sakazakii groups, respectively. ...[more]

PMID: 33122419

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The taxonomy of Enterobacter sakazakii: proposal of a new genus Cronobacter gen. nov. and descriptions of Cronobacter sakazakii comb. nov. Cronobacter sakazakii subsp. sakazakii, comb. nov., Cronobacter sakazakii subsp. malonaticus subsp. nov., Cronobacter turicensis sp. nov., Cronobacter muytjensii sp. nov., Cronobacter dublinensis sp. nov. and Cronobacter genomospecies 1.

Project description:BackgroundEnterobacter sakazakii is an opportunistic pathogen that can cause infections such as necrotizing enterocolitis, bacteraemia, meningitis and brain abscess/lesions. When the species was defined in 1980, 15 biogroups were described and it was suggested that these could represent multiple species. In this study the taxonomic relationship of strains described as E. sakazakii was further investigated.ResultsStrains identified as E. sakazakii were divided into separate groups on the basis of f-AFLP fingerprints, ribopatterns and full-length 16S rRNA gene sequences. DNA-DNA hybridizations revealed five genomospecies. The phenotypic profiles of the genomospecies were determined and biochemical markers identified.ConclusionThis study clarifies the taxonomy of E. sakazakii and proposes a reclassification of these organisms.

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Draft Genome Sequences of Seven Cronobacter sakazakii Strains Carrying the mcr 9.1 Gene Isolated in Chile.

Project description:Cronobacter sakazakii is a pathogen that causes severe diseases such as meningitis and necrotizing enterocolitis in infants under 12 months, associated with the consumption of contaminated rehydrated powdered infant formula (PIF). We present seven C. sakazakii genome sequences isolated from PIF and dairy products in Chile in 2017.

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Draft Genome Sequence of Cronobacter sakazakii Cr268, Isolated from Infant Powder Formula.

Project description:Cronobacter sakazakii is an emerging pathogen that causes meningitis, bacteremia, sepsis, and necrotizing enterocolitis in premature infants. Strain Cr268 was isolated from imported powdered infant formula in 2009 during routine microbial examination according to ISO-22964 ("Microbiology of the food chain-horizontal method for the detection of Cronobacter spp."). Isolate Cr268 was confirmed to be C. sakazakii by matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) and standard biochemical analysis. Here, we announce its genome, which represents a new member in the C. sakazakii group.

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Fully Closed Genome Sequences of Five Type Strains of the Genus Cronobacter and One Cronobacter sakazakii Strain.

Project description:Cronobacteris associated with infant infections and the consumption of reconstituted infant formula. Here we sequenced and closed six genomes ofC. condimenti(T),C. muytjensii(T),C. universalis(T),C. malonaticus(T),C. dublinensis(T), andC. sakazakiithat can be used as reference genomes in single nucleotide polymorphism (SNP)-based next-generation sequencing (NGS) analysis for source tracking investigations.

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Genome sequence of Cronobacter sakazakii myovirus vB_CsaM_GAP31.

Project description:Cronobacter sakazakii is a pathogen that predominantly infects immunocompromised individuals, especially infants, where it causes meningitis. The genome of lytic C. sakazakii myovirus vB_CsaM_GAP31 has been fully sequenced. It consists of 147,940 bp and has a G+C content of 46.3%. A total of 295 genes, including 269 open reading frames and 26 tRNA genes, were identified. This phage is related to Salmonella phage PVP-SE1 and coliphages vB_EcoM-FV3 and rV5.

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Complete genome sequence of Cronobacter sakazakii bacteriophage vB_CsaM_GAP161.

Project description:Cronobacter sakazakii is an opportunistic pathogen that causes infant meningitis and is often associated with milk-based infant formula. We have fully sequenced the genome of a newly isolated lytic C. sakazakii myovirus, vB_CsaM_GAP161, briefly named GAP161. It consists of 178,193 bp and has a G+C content of 44.5%. A total of 277 genes, including 275 open reading frames and two tRNA-encoding genes, were identified. This phage is closely related to coliphages RB16 and RB43 and Klebsiella pneumoniae phage KP15.

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Complete genome sequence of Cronobacter sakazakii bacteriophage CR3.

Project description:Due to the high risk of Cronobacter sakazakii infection in infants fed powdered milk formula and the emergence of antibiotic-resistant strains, an alternative biocontrol agent using bacteriophage is needed to control this pathogen. To further the development of such an agent, the C. sakazakii-targeting bacteriophage CR3 was isolated and its genome was completely sequenced. Here, we announce the genomic analysis results of the largest C. sakazakii phage known to date and report the major findings from the genome annotation.

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Complete genome of temperate phage ENT39118 from Cronobacter sakazakii.

Project description:Cronobacter sakazakii infection is particularly harmful to infants, and putative virulence factors of prophage origin have been identified in C. sakazakii. In this study, the phage ENT39118 was isolated from wild-type C. sakazakii; it belongs to the family Siphoviridae. The genomic sequence of phage ENT39118 was composed of circular double-stranded DNA with a length of 39,012 bp. The sequence of ENT39118 showed weak sequence similarity to some reported regions of the prophage sequences in the C. sakazakii BAA-894 genome. To our knowledge, this is the first study of the genomic sequencing and annotation of this temperate phage, which was obtained from a C. sakazakii isolate from powdered infant formula.

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Complete Genome Sequence of Cronobacter sakazakii Strain CMCC 45402.

Project description:Cronobacter sakazakii is considered to be an important pathogen involved in life-threatening neonatal infections. Here, we report the annotated complete genome sequence of C. sakazakii strain CMCC 45402, obtained from a milk sample in China. The major findings from the genomic analysis provide a better understanding of the isolates from China.

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Complete genome sequence of Cronobacter sakazakii temperate bacteriophage phiES15.

Project description:While most phage genome studies have been focused on the virulent phages, the inducible temperate bacteriophage genome study provides more detailed information about the interaction between the host strain and the phage. To study this interaction in detail, UV-induced phiES15 bacteriophage was isolated from the host strain Cronobacter sakazakii ES15 and its genome was completely sequenced. Here we announce the genome sequence of phiES15 and report major findings from the annotation.

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