List of new names and new combinations previously effectively, but not validly, published

Oren, Aharon

doi:10.1099/ijsem.0.003174

“…The characterization of new species pointed to the need of a clarification of the genus' taxonomy, and recently, a genomic comparative analysis of the class Epsilonproteobacteria suggested a reclassification of Arcobacter genus as a new family Arcobacteraceae [3]. Furthermore, a taxonomic and phylogenetic analyses of the 29 recognized species and 11 candidate species led Pérez-Cataluña et al (2018) [4] to propose a division of the current genus Arcobacter in seven different genera: Arcobacter, Aliarcobacter gen. nov., Pseudarcobacter gen. nov., Halarcobacter gen. nov., Malaciobacter gen. nov., Poseidonibacter gen. nov., and Candidate 'Arcomarinus' gen. nov., of which four genera have already be validated [4,5]. The species A. butzleri, A.…”

Section: Introductionmentioning

confidence: 99%

Virulence and antibiotic resistance plasticity of Arcobacter butzleri: Insights on the genomic diversity of an emerging human pathogen

Isidro

¹

,

Ferreira

²

,

Pinto

³

et al. 2020

Infection, Genetics and Evolution

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Arcobacter butzleri is a food and waterborne bacteria and an emerging human pathogen, frequently displaying a multidrug resistant character. Still, no comprehensive genome-scale comparative analysis has been performed so far, which has limited our knowledge on A. butzleri diversification and pathogenicity. Here, we performed a deep genome analysis of A. butzleri focused on decoding its core-and pan-genome diversity and specific genetic traits underlying its pathogenic potential and diverse ecology. In total, 49 A. butzleri strains (collected from human, animal, food and environmental sources) were screened..

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“…The characterization of new species pointed to the need of a clarification of the genus' taxonomy, and recently, a genomic comparative analysis of the class Epsilonproteobacteria suggested a reclassification of Arcobacter genus as a new family Arcobacteraceae [3]. Furthermore, a taxonomic and phylogenetic analyses of the 29 recognized species and 11 candidate species led Pérez-Cataluña et al (2018) [4] to propose a division of the current genus Arcobacter in seven different genera: Arcobacter, Aliarcobacter gen. nov., Pseudarcobacter gen. nov., Halarcobacter gen. nov., Malaciobacter gen. nov., Poseidonibacter gen. nov., and Candidate 'Arcomarinus' gen. nov., of which four genera have already be validated [4,5]. The species A. butzleri, A. cryaerophilus, A. skirrowii and A. thereius, all considered human pathogens, will be included in Aliarcobacter genus [4].…”

Section: Introductionmentioning

confidence: 99%

Virulence and antibiotic resistance plasticity ofArcobacter butzleri: insights on the genomic diversity of an emerging human pathogen

Isidro

¹

,

Ferreira

²

,

Pinto

³

et al. 2019

Preprint

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Arcobacter butzleri is a food and waterborne bacteria and an emerging human pathogen, frequently displaying a multidrug resistant character. Still, no comprehensive genome-scale comparative analysis has been performed so far, which has limited our knowledge on A. butzleri diversification and pathogenicity. Here, we performed a deep genome analysis of A. butzleri focused on decoding its core-and pan-genome diversity and specific genetic traits underlying its pathogenic potential and diverse ecology. In total, 49 A. butzleri strains (collected from human, animal, food and environmental sources) were screened.A. butzleri (genome size 2.07-2.58 Mbp) revealed a large open pan-genome with 7474 genes (about 50% being singletons) and a small core-genome with 1165 genes. The core-genome is highly diverse (≥55% of the core genes presenting at least 40/49 alleles), being enriched with genes associated with housekeeping functions. In contrast, the accessory genome presented a high proportion of loci with an unknown function, also being particularly overrepresented by genes associated with defence mechanisms. A. butzleri revealed a plastic virulome (including newly identified determinants), marked by the differential presence of multiple adaptationrelated virulence factors, such as the urease cluster ureD(AB)CEFG (phenotypically confirmed), the hypervariable hemagglutinin-encoding hecA, a putative type I secretion system (T1SS) harboring another agglutinin potentially related to adherence and a novel VirB/D4 T4SS likely linked to interbacterial competition and cytotoxicity. In addition, A. butzleri harbors a large repertoire of efflux pumps (EPs) (ten "core" and nine differentially present) and other antibiotic resistant determinants. We provide the first description of a genetic determinant of macrolides resistance in A. butzleri, by associating the inactivation of a TetR repressor (likely regulating an EP) with erythromycin resistance. Fluoroquinolones resistance correlated with the Thr-85-Ile substitution in GyrA and ampicillin resistance was linked to an OXA-15-like β-lactamase. Remarkably, by decoding the polymorphism pattern of the porin-and adhesin-encoding main antigen PorA, this study strongly supports that this pathogen is able to exchange porA as a whole and/or hypervariable epitope-encoding regions separately, leading to a multitude of chimeric PorA presentations that can impact pathogen-host interaction during infection. Ultimately, our unprecedented screening of short sequence repeats detected potential phasevariable genes related to adaptation and host/environment interaction, such as lipopolysaccharide modification and motility/chemotaxis, suggesting that phase variation likely modulate A. butzleri key adaptive functions.In summary, this study constitutes a turning point on A. butzleri comparative genomics revealing that this human gastrointestinal pathogen is equipped with vast virulence and antibiotic resistance arsenals, which, coupled with its remarkable core-and pan-genome diversity, opens a multitude of ...

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“…The genus Poseidonibacter , belonging to the family Campylobacteraceae , was formed in 2019 as a part of the reclassification of the genus Arcobacter [1, 2]. Poseidonibacter lekithochrous , the type species of this genus, was originally described in 2017 by Diéguez et al [3] with the name Arcobacter lekithochrous and reclassified in 2019 by Pérez-Cataluña et al [1, 2]. Another species in this genus is Pseidonibacter antarcticus which was described in 2019 by Guo et al [4].…”

Section: Full-textmentioning

confidence: 99%

Poseidonibacter parvus sp. nov., isolated from a squid

Kim

¹

,

Baek

²

,

Shin

³

et al. 2021

International Journal of Systematic and Evolutionary Microbiology

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A Gram-stain-negative, aerobic, short rod-shaped, motile, brownish-coloured bacterium, termed strain LPB0137T, was isolated from a squid. Its cells could grow weakly on marine agar 2216 with 0.04 % 2,3,5-triphenyl tetrazolium chloride (TTC). Each cell of strain LPB0137T has a circular chromosome with a length of 2.87 Mb and 27.7 mol% DNA G+C content. The genome includes 2698 protein-coding genes and six rRNA operons. In 16S rRNA gene sequence trees, strain LPB0137T formed a robust monophyletic clade with Poseidonibacter antarcticus SM1702T with a sequence similarity of 98.3 %. However, the average nucleotide identity and in silico DNA–DNA hybridization values between the two type strains were low (83.9 and 28.1 %, respectively). The overall phenotypic and genomic features of strain LPB0137T supported its assignment to the genus Poseidonibacter . However, the relatively low gene and genome sequence similarity between this strain and other type strains of the genus Poseidonibacter and several enzymatic characteristics indicated the taxonomic novelty of the isolated strain as a new member of the genus Poseidonibacter . Therefore, based on the phylogenetic and phenotypic characteristics of LPB0137T, we proposed a novel species of the genus Poseidonibacter for it, with the name Poseidonibacter parvus sp. nov. The type strain of this new species is thus LPB0137T (=KACC 18888T=JCM 31548T).

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List of new names and new combinations previously effectively, but not validly, published

Cited by 132 publications

References 37 publications

Virulence and antibiotic resistance plasticity of Arcobacter butzleri: Insights on the genomic diversity of an emerging human pathogen

Virulence and antibiotic resistance plasticity of Arcobacter butzleri: Insights on the genomic diversity of an emerging human pathogen

Virulence and antibiotic resistance plasticity ofArcobacter butzleri: insights on the genomic diversity of an emerging human pathogen

Poseidonibacter parvus sp. nov., isolated from a squid

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