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INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY logo

Volume 73, Issue 11

sp. nov., a novel thermophilic anaerobic heterotroph isolated from a shallow hydrothermal field of Panarea Island in the Aeolian archipelago, Italy No Access

Abstract

A novel thermophilic strain, designated BP5-C20A, was isolated from the shallow hydrothermal field of the Panarea island in the Aeolian archipelago close to Sicily, Italy. Cells are motile rods surrounded with a ‘toga’, Gram-stain-negative and display a straight to curved morphology during the exponential phase. Strain BP5-C20A is thermophilic (optimum 55 °C), moderately acidophilic (optimum pH 5.6) and halotolerant (optimum 25 g l NaCl). It can use yeast extract, peptone and tryptone. It uses the following carbohydrates: cellobiose, fructose, glucose, maltose, starch, sucrose and xylan. Elemental sulphur is used as an electron acceptor and reduced to hydrogen sulphide. The predominant cellular fatty acid is C. Phylogenetic analysis showed that strain BP5-C20A shared 97.3 % 16S rRNA gene sequence identity with the closest related species LG1. The complete genome of strain BP5-C20A is 2.44 Mb in size with a G+C content of 27.3 mol%. The dDDH and ANI values between the genomes of strains BP5-C20A and LG1 are 31.0 and 85.70% respectively. Finally, from its physiological, metabolic and genomic characteristics, strain BP5-C20A (=DSM 112332=JCM 39183 ) is proposed as representative of a novel species of the genus named sp. nov. and belonging to the order , in the phylum .

  • Received:
  • Accepted:
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Keyword(s): anaerobic , Marinitoga , Panarea Italy , shallow hydrothermal vents , thermophilic and Thermotogota
Funding
This study was supported by the:
  • CNRS (Award X-life - Unknown branches of life)
    • Principle Award Recipient: ErausoGaël
© 2023 The Authors
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2023-11-28
2024-05-07
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Marinitoga aeolica sp. nov., a novel thermophilic anaerobic heterotroph isolated from a shallow hydrothermal field of Panarea Island in the Aeolian archipelago, Italy
Int J Syst Evol Microbiol 73, 006186 (2023); https://doi.org/10.1099/ijsem.0.006186
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