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Volume 74, Issue 1

sp. nov., isolated from artisanal Montenegrin dry sausage Open Access

Abstract

A novel, Gram-positive, facultative anaerobe, coccoid and non-motile bacterium, designated as CoE-012-22 was isolated from dried beef sausage (the original name in Montenegro is Govedji Kulen) manufactured in the municipality of Rozaje (Montenegro) in 2021. Cells of this strain were oxidase- and catalase-negative. Growth occurred at 4–50 °C, at pH 5.0–8.0 and with 0–6.5 % (w/v) NaCl in diverse growth media. MALDI-TOF analysis identified the strain as (log score 2). Phylogenetic analysis of the 16S rRNA gene and whole genome sequences assigned the strain to the genus . The closest relatives were DSM 21207 and ATCC 51266 with 16S rRNA gene sequence pairwise similarities of 99.34 and 98.59 %, respectively. The average nucleotide identity (ANI) and digital DNA–DNA hybridization (dDDH) values between isolate CoE-012-22 and other enterococci species were below the thresholds for species delineation thresholds (95.0 % ANI; 70.0 % dDDH) with maximum identities of 84.13 % (ANIb), 86.43 % (ANIm) and 28.4 % (dDDH) to JCM 31193 and 70.97 % (ANIb), 88.99 % (ANIm) and 32.4 % (dDDH) to ATCC 43197. Two unknown isolates, sp. MJM12 and SMC-9, showed identities of 99.87 and 99.94 % (16S rRNA), 98.57 and 98.65 % (ANIb), 98.93 and 99.02 % (ANIm), and 89.8 and 90.0 % (dDDH) to strain CoE-012-22 and can therefore be regarded as the same species. Based on the characterization results, strain CoE-012-22 was considered to represent a novel species, for which the name sp. nov. is proposed. The type strain is CoE-012-22 (=DSM 115843=NCIMB 15468).

  • Received:
  • Accepted:
  • Published Online:
Keyword(s): artisanal dried sausage , Enterococcus montenegrensis sp. nov and genome
Funding
This study was supported by the:
  • European Public Health Microbiology Training Programme (EUPHEM) (Award No1/ECD.13493)
    • Principle Award Recipient: MariaJoao Cardoso
  • Ministry of Science and Technological Development of Montenegro (Award 013660/2)
    • Principle Award Recipient: AleksandraMartinovic
© 2024 The Authors
  • This is an open-access article distributed under the terms of the Creative Commons Attribution License.
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2024-01-19
2024-05-17
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Enterococcus montenegrensis sp. nov., isolated from artisanal Montenegrin dry sausage
Int J Syst Evol Microbiol 74, 006206 (2024); https://doi.org/10.1099/ijsem.0.006206
/content/journal/ijsem/10.1099/ijsem.0.006206
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