Abstract
The study provides a taxonomic characterization of three bacterial strains isolated from high-oxygen modified-atmosphere packaged beef from Germany. The strains of the novel species shared identical 16S rRNA gene sequence to the closely related type strain of Dellaglioa algida. However, the in-silico DNA-DNA hybridization (DDH) values indicate that they belong to a different genomic species. The in silico DDH estimate value between TMW 2.2523T and the type strain of Dellaglioa algida DSM 15638T was only 63.2 %. The whole genome average nucleotide identity blast (ANIb) value of 95.1 % between TMW 2.2523T and the closely related type strain of D. algida was within the recommended threshold value of 95–96 % for bacterial species delineation. Additionally, the phylogenomic analyses based on multi locus sequence alignment (MLSA) showed that strain TMW 2.2523T and additional strains TMW 2.2444 and TMW 2.2533 formed a monophyletic group separate from D. algida strains. Furthermore, tyrosine decarboxylase activity could be attributed to strains of the new proposed species. The results of this polyphasic approach support the affiliation of these strains to a novel species within the genus Dellaglioa for which we propose the name Dellaglioa carnosa sp. nov. The designated respective type strain is TMW 2.2523T (DSM 114968T = LMG 32819T).
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