Campylobacter anatolicus sp. nov., a novel member of the genus Campylobacter isolated from feces of Anatolian Ground Squirrel (Spermophilus xanthoprymnus) in Turkey

AYDIN F., ABAY S., Kayman T., KARAKAYA E., MÜŞTAK H. K., MÜŞTAK İ. B., ...More

SYSTEMATIC AND APPLIED MICROBIOLOGY, vol.44, no.6, 2021 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 44 Issue: 6
  • Publication Date: 2021
  • Doi Number: 10.1016/j.syapm.2021.126265
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Agricultural & Environmental Science Database, Aquatic Science & Fisheries Abstracts (ASFA), BIOSIS, CAB Abstracts, EMBASE, Environment Index, Food Science & Technology Abstracts, MEDLINE, Veterinary Science Database
  • Keywords: Anatolian ground squirrel, Campylobacter, Feces, Novel species, Overall genome-related index, BACTEROIDES-UREOLYTICUS, IDENTIFICATION, PCR, RECLASSIFICATION, HELICOBACTER, PREVALENCE, ARCOBACTER, SEQUENCES, JEJUNI, TESTS
  • Erciyes University Affiliated: Yes


Seventy-four Gram-negative, motile, slightly curved rod-shaped, microaerophilic, oxidase-positive and catalase-negative isolates, recovered from fecal samples of the Anatolian ground squirrel (Spermophilus xanthoprymnus) in Kayseri, Turkey, were subjected to a polyphasic taxonomic study. Results of a genus-specific PCR indicated that all isolates belonged to the genus Campylobacter. 16S rRNA gene sequence analyses revealed the closest match as Campylobacter curvus DSM 6644(T) with identity levels of 96.41-96.70%. Based on the 16S rRNA gene phylogeny of the 74 isolates, six isolates (faydin-G24, faydin-G52, faydin-G105, faydin-G114, faydin-G129 and faydin-G140(T)) were chosen as representatives for further characterization. The overall genome relatedness indices for the strain faydin-G140(T), compared to the most closely related type strain C. curvus ATCC 35224(T), were calculated as 15.2%, 72.5%, and 83.7% for digital DNA-DNA hybridization (dDDH), and average nucleotide identity (ANIb and ANIm), respectively. The G+C content and genome size of the strains ranged between 35.2-35.4 mol% and 1.7-1.8 Mb, respectively. Based on data obtained from the polyphasic taxonomy approach, including phenotypic characterization as well as genomic and chemotaxonomic analyses, these strains are concluded to represent a novel species, for which the name Campylobacter anatolicus sp. nov. is proposed with faydin-G140(T) as the type strain (=DSM 112311(T) = LMG 32238(T)) (C) 2021 Elsevier GmbH. All rights reserved.