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Título
Dermatobacter hominis gen. nov., sp. nov., a new member of the family Iamiaceae, revealed the potential utilisation of skin-derived metabolites
Autor(es)
Materia
Dermatobacter
Lamiaceae
Taxonomy
Actinobacteria
Skin bacteria
Clasificación UNESCO
2414 Microbiología
Fecha de publicación
2023-11
Citación
Jo, H., Baek, C., Heo, Y.M. et al. Dermatobacter hominis gen. nov., sp. nov., a new member of the family Iamiaceae, revealed the potential utilisation of skin-derived metabolites. Antonie van Leeuwenhoek 116, 1139–1150 (2023). https://doi.org/10.1007/s10482-023-01873-6
Resumen
[EN]A non-motile, novel actinobacterial strain, Kera-3T, which is a gram-positive, aerobic, rod-shaped bacterium, was isolated from human keratinocytes on 1/10 diluted R2A agar. Whole-cell hydrolysis of amino acids revealed the presence of meso-DAP, alanine, and glutamic acid. The predominant menaquinone was MK-9 (H8), whereas the primary fatty acids were C16:0 and C18:1 ω9c. The major phospholipids included diphosphatidylglycerol and aminophospholipids, along with an unidentified phosphoglycolipid and an aminophosphoglycolipid. The G+C content of the genomic DNA was 73.2%, based on the complete genome sequence. Phylogenetic analyses of the 16S rRNA gene sequence and phylogenomic analysis of 91 core genes showed that strain Kera-3T formed a new lineage in the family Iamiaceae, with the closest neighbour Rhabdothermincola sediminis SYSU G02662T having 91.19% 16S rRNA gene sequence identity. A comparative genomic study of the predicted general metabolism and carbohydrate-active enzymes supported the phylogenetic and phylogenomic data. Based on the analysis of physiological, biochemical, and genomic characteristics, strain Kera-3T can be distinguished from known genera in the family Iamiaceae and represents a novel genus and species. Therefore, the name Dermatobacter hominis gen. nov., sp. nov. was proposed, with the type strain Kera-3T (= KACC 22415T = LMG 32493T).
URI
ISSN
1572-9699
DOI
10.1007/s10482-023-01873-6
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