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- Title
Roseihalotalea indica gen. nov., sp. nov., a halophilic Bacteroidetes from mesopelagic Southwest Indian Ocean with higher carbohydrate metabolic potential.
- Authors
Chen, Beihan; Zhang, Mingzhe; Lin, Dan; Ye, Jianing; Tang, Kai
- Abstract
The pink-colored and strictly aerobic bacterium strain, designated as TK19036T, was isolated from mesopelagic layer of the Southwest Indian Ocean. This novel isolate can grow at 10–45 °C (optimum, 30 °C), pH 6.0–8.0 (optimum, pH 7.0), and 2–14% NaCl concentrations (w/v) (optimum, 6%). The predominant respiratory quinone was Menaquinone-7. Major polar lipid profiles contained two aminolipids, aminophospholipid, two glycolipids, phosphatidylethanolamine, and three unknown polar lipids. The preponderant cellular fatty acids were iso-C15:0, C16:1ω5c and iso-C17:0 3-OH. Phylogenetic analyses based on 16S rRNA gene sequence uncovered that the strain TK19036T pertained to the family Catalinimonadaceae under phylum Bacteroidota, and formed a distinct lineage with the closed species Tunicatimonas pelagia NBRC 107804T. The up-to-bacteria-core gene phylogenetic trees also demonstrated a deep and novel branch formed by the strain TK19036T within the family Catalinimonadaceae. Based on chemotaxonomic, phylogenetic and genomic features presented above, strain TK19036T represents a novel species from a novel genus of the family Catalinimonadaceae, for which the name Roseihalotalea indica gen. nov. sp. nov. is proposed. The type strain is TK19036T (= CGMCC 1.18940T = NBRC 116371T).
- Subjects
GLYCOLIPIDS; CARBOHYDRATES; BACTEROIDETES; OCEAN; AEROBIC bacteria; FATTY acids
- Publication
Antonie van Leeuwenhoek, 2024, Vol 117, Issue 1, p1
- ISSN
0003-6072
- Publication type
Article
- DOI
10.1007/s10482-024-01965-x