{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,2]],"date-time":"2026-06-02T16:05:11Z","timestamp":1780416311608,"version":"3.54.1"},"reference-count":37,"publisher":"Microbiology Society","issue":"6","license":[{"start":{"date-parts":[[2026,6,2]],"date-time":"2026-06-02T00:00:00Z","timestamp":1780358400000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,6,2]]},"abstract":"<jats:p>\n                    The genus\n                    <jats:italic>Legionella<\/jats:italic>\n                    encompasses environmental bacteria frequently present in water samples. Two strains of\n                    <jats:italic>Legionella<\/jats:italic>\n                    isolated from a re-cooling plant and from a drinking water house installation in southern Germany were identified as two different novel species. The isolates were both Gram-stain negative rods, negative to latex agglutination, able to grow at 37\u2009\u00b0C on buffered charcoal\u2013yeast extract agar with\n                    <jats:sc>l<\/jats:sc>\n                    -cysteine agar. The phenotypic characterization was complemented by whole-genome sequencing. The genomes of the strains WA2022007384 and WA2024007413 were sequenced and identified as two different novel species with a GC mol% content of 37.92 and 37.91, respectively. Both strains encoded antimicrobial resistance genes against beta-lactams, aminoglycosides and clusters for legioliulin biosynthesis that might confer fluorescence under UV light at 365\u2009nm. The average nucleotide identity percentage between the strain WA2022007384 and its closest related strains was 87.41% to\n                    <jats:italic>Legionella qingyii<\/jats:italic>\n                    km489\n                    <jats:sup>T<\/jats:sup>\n                    and 86.97% to\n                    <jats:italic>Legionella gormanii<\/jats:italic>\n                    NCTC11401\n                    <jats:sup>T<\/jats:sup>\n                    . For the strain WA2024007413, the closest species were 98.28% to\n                    <jats:italic>Legionella<\/jats:italic>\n                    sp. PC997, 85.84% to\n                    <jats:italic>L. gormanii<\/jats:italic>\n                    NCTC11401\n                    <jats:sup>T<\/jats:sup>\n                    and 85.61% to\n                    <jats:italic>L. qingyii<\/jats:italic>\n                    km489\n                    <jats:sup>T<\/jats:sup>\n                    . The phylogenetic tree based on 164 concatenated core genes showed a separated clade neighbouring the strains\n                    <jats:italic>L. gormanii<\/jats:italic>\n                    NCTC11401\n                    <jats:sup>T<\/jats:sup>\n                    and\n                    <jats:italic>L. qingyii<\/jats:italic>\n                    km489\n                    <jats:sup>T<\/jats:sup>\n                    . These results confirm the description of the two novel species\n                    <jats:italic>Legionella stuttgartensis<\/jats:italic>\n                    sp. nov., with WA2022007384\n                    <jats:sup>T<\/jats:sup>\n                    (=DSM 120481\n                    <jats:sup>T<\/jats:sup>\n                    =NCCB 101094\n                    <jats:sup>T<\/jats:sup>\n                    ) as its type strain, and\n                    <jats:italic>Legionella nigrisilvae<\/jats:italic>\n                    sp. nov., with WA2024007413\n                    <jats:sup>T<\/jats:sup>\n                    (=DSM 120480\n                    <jats:sup>T<\/jats:sup>\n                    =NCCB 101095\n                    <jats:sup>T<\/jats:sup>\n                    ) as its type strain.\n                  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