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Abstract <p>A novel gram-positive, rod-shaped, anaerobic fermentative bacterium, strain SC589<sup>T</sup>, was isolated from a terrestrial mud volcano (Taman Peninsula, Russia) and characterized. The strain grew at 14–47°C (optimum 37°C), the pH range of 6.0–10.0 (optimum pH 7.5) and with 1.0–12.0% (wt/vol) NaCl (optimum 2.0–4.0%). Substrates utilized by strain SC589<sup>T</sup> included yeast extract, peptone, tryptone, alanine, arginine, and pyruvate. Elemental sulfur, thiosulfate, and Fe(III) were used as electron acceptors and enhanced growth. Based on 16S rRNA gene sequence analysis, strain SC589<sup>T</sup> was found to belong to the family <i>Tissierellaceae</i> (phylum <i>Bacillota</i>), with the highest similarities to <i>Gudongella oleilytica</i> (96%) and members of the genus <i>Soehngenia</i> (93–94%). The morphological, physiological, metabolic, and phylogenetic analyses demonstrated that strain SC589<sup>T</sup> (=KCTC 25768<sup>T</sup> = VKM B-3840<sup>T</sup>) represents a novel species of the genus <i>Gudongella</i>, for which the name <i>Gudongella ferriphila</i> sp. nov. is proposed.</p>

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Gudongella ferriphila sp. nov., an Anaerobic Bacterium Isolated from a Terrestrial Mud Volcano

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  • 发表日期：

    2025年11月17日

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  • G. Slobodkina,
  • A. Merkel,
  • D. Kopitsyn,
  • A. Slobodkin

摘要

Abstract

A novel gram-positive, rod-shaped, anaerobic fermentative bacterium, strain SC589T, was isolated from a terrestrial mud volcano (Taman Peninsula, Russia) and characterized. The strain grew at 14–47°C (optimum 37°C), the pH range of 6.0–10.0 (optimum pH 7.5) and with 1.0–12.0% (wt/vol) NaCl (optimum 2.0–4.0%). Substrates utilized by strain SC589T included yeast extract, peptone, tryptone, alanine, arginine, and pyruvate. Elemental sulfur, thiosulfate, and Fe(III) were used as electron acceptors and enhanced growth. Based on 16S rRNA gene sequence analysis, strain SC589T was found to belong to the family Tissierellaceae (phylum Bacillota), with the highest similarities to Gudongella oleilytica (96%) and members of the genus Soehngenia (93–94%). The morphological, physiological, metabolic, and phylogenetic analyses demonstrated that strain SC589T (=KCTC 25768T = VKM B-3840T) represents a novel species of the genus Gudongella, for which the name Gudongella ferriphila sp. nov. is proposed.