During a sampling of wild red foxes (Vulpes vulpes) for the detection of Epsilonproteobacteria, 14 strains were isolated from the caecal contents of 14 epidemiologically-unrelated animals. A genus-specific PCR indicated that the isolates belonged to the genus Campylobacter. Based on the results of a species-specific PCR, the isolates were initially identified as C. upsaliensis. However, multi-locus sequence typing (MLST) revealed that the isolates were significantly different from the C. upsaliensis present in the MLST database. A polyphasic study, including conventional biochemical and tolerance characteristics, morphology by transmission electron microscopy (TEM), MALDI-TOF analysis, and genetic comparisons based on partial 16S rDNA and atpA gene sequences, was undertaken. Finally, the complete genome sequence of the type strain 251/13T and the draft genome sequences of the other isolates were determined. Average nucleotide identity, average amino acid identity and in silico DNA-DNA hybridization analyses confirmed that the isolates represent a novel taxon for which the name Campylobacter vulpis sp. nov. is proposed, with isolate 251/13T (=CCUG 70587T = LMG 30110T) as the type strain. In order to allow a rapid discrimination of C. vulpis from the closely-related C. upsaliensis, a specific PCR test was designed, based on atpA gene sequences.

ṇCampylobacter vulpis sp. nov. isolated from wild red foxes / A. Parisi, M. Chiara, M. Caffara, D. Mion, W.G. Miller, M. Caruso, C. Manzari, D. Florio, L. Capozzi, A.M. D'Erchia, V. Manzulli, R.G. Zanoni. - In: SYSTEMATIC AND APPLIED MICROBIOLOGY. - ISSN 0723-2020. - 44:3(2021 May), pp. 126204.1-126204.11. [10.1016/j.syapm.2021.126204]

ṇCampylobacter vulpis sp. nov. isolated from wild red foxes

M. Chiara
Secondo
;
2021

Abstract

During a sampling of wild red foxes (Vulpes vulpes) for the detection of Epsilonproteobacteria, 14 strains were isolated from the caecal contents of 14 epidemiologically-unrelated animals. A genus-specific PCR indicated that the isolates belonged to the genus Campylobacter. Based on the results of a species-specific PCR, the isolates were initially identified as C. upsaliensis. However, multi-locus sequence typing (MLST) revealed that the isolates were significantly different from the C. upsaliensis present in the MLST database. A polyphasic study, including conventional biochemical and tolerance characteristics, morphology by transmission electron microscopy (TEM), MALDI-TOF analysis, and genetic comparisons based on partial 16S rDNA and atpA gene sequences, was undertaken. Finally, the complete genome sequence of the type strain 251/13T and the draft genome sequences of the other isolates were determined. Average nucleotide identity, average amino acid identity and in silico DNA-DNA hybridization analyses confirmed that the isolates represent a novel taxon for which the name Campylobacter vulpis sp. nov. is proposed, with isolate 251/13T (=CCUG 70587T = LMG 30110T) as the type strain. In order to allow a rapid discrimination of C. vulpis from the closely-related C. upsaliensis, a specific PCR test was designed, based on atpA gene sequences.
Campylobacter vulpis sp. nov.; polyphasic taxonomic study; red foxes; vulpes vulpes; animals; bacterial typing techniques; base composition; DNA, bacterial; multilocus sequence typing; nucleic acid hybridization; RNA, ribosomal, 16S; sequence analysis, DNA; campylobacter; foxes; phylogeny
Settore BIO/11 - Biologia Molecolare
Settore BIO/19 - Microbiologia Generale
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/878055
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