{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T04:42:30Z","timestamp":1791261750182,"version":"4.1.0"},"reference-count":42,"publisher":"Microbiology Society","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2025,4,24]]},"abstract":"<jats:p>An anaerobic, spore-forming, 3-hydroxybutyrate (3-HB)-producing bacterium, strain IPX_CK<jats:sup>T<\/jats:sup>, was isolated from sediment of a meromictic lake located in Massif Central (France). Cells were rods, forming filamentous chains which were observed moving under the microscope. Strain IPX_CK<jats:sup>T<\/jats:sup> utilized a wide variety of carbohydrates, but not raffinose, rhamnose and starch. Hydrogen (H<jats:sub>2<\/jats:sub>), 3-HB, acetate and ethanol were the main fermentative end-products from growth in medium containing glucose. Strain IPX_CK<jats:sup>T<\/jats:sup> grew optimally at 37 \u00b0C and pH 7. Its closest phylogenetic relative was <jats:italic>Kineothrix alysoides<\/jats:italic> (16S rRNA gene sequence identity 98.7%, <jats:italic>is<\/jats:italic>DDH 34.6%, ANIb 87.4%). The genomic DNA G+C content was 43.0 mol%. As for <jats:italic>K. alysoides<\/jats:italic>, whole-genome sequencing suggested that strain IPX_CK<jats:sup>T<\/jats:sup> is capable of fixing nitrogen (N<jats:sub>2<\/jats:sub>). However, strain IPX_CK<jats:sup>T<\/jats:sup> carried a five-<jats:italic>nif<\/jats:italic>-gene-set (<jats:italic>nifHDKEB<\/jats:italic>), not present in <jats:italic>K. alysoides<\/jats:italic>. Genome sequence also showed a high number of encoded chemotaxis receptors (42 genes, the second highest in the family <jats:italic>Lachnospiraceae<\/jats:italic> after <jats:italic>K. alysoides<\/jats:italic>). Based on phenotypic, genomic, phylogenetic and chemotaxonomic analyses, it is proposed that a novel species, <jats:italic>Kineothrix sedimenti<\/jats:italic> sp. nov., be created, with strain IPX_CK<jats:sup>T<\/jats:sup> (DSM 118044<jats:sup>T<\/jats:sup>, CIP 112511<jats:sup>T<\/jats:sup>) as the type strain.<\/jats:p>","DOI":"10.1099\/ijsem.0.006750","type":"journal-article","created":{"date-parts":[[2025,4,24]],"date-time":"2025-04-24T15:15:35Z","timestamp":1745507735000},"source":"Crossref","is-referenced-by-count":4,"title":["Kineothrix sedimenti sp. nov., a 3-hydroxybutyrate-producing bacterium isolated from sediment of the meromictic Lake Pavin"],"prefix":"10.1099","volume":"75","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7962-4171","authenticated-orcid":false,"given":"Corinne","family":"Biderre-Petit","sequence":"first","affiliation":[{"name":"Laboratoire Microorganismes: G\u00e9nome et Environnement, Universit\u00e9 Clermont Auvergne, CNRS, Clermont-Ferrand, F-63000, 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