1887

Abstract

A Gram-reaction-negative, strictly aerobic, pale yellow, non-gliding, rod-shaped bacterium, designated DT-LB-19, was isolated from the sediment of East Taihu Lake in Jiangsu Province, PR China. Strain DT-LB-19 showed the highest 16S rRNA gene sequence similarities to members of the genera , and (94.84–95.77 %) in the family . In phylogenetic trees based on genomes, strain DT-LB-19 clustered within the genus but formed a separate subclade with a high bootstrap value. The average nucleotide identity and digital DNA–DNA hybridization values between DT-LB-19 and the closely related type strains were in the range of 82.5–86.9 % and 25.8–32.3 %, respectively. The major cellular fatty acids were iso-C, iso-C 3-OH, C 5, C, summed feature 4 (iso-C I and/or anteiso-C B), summed feature 3 (C ω7 and/or C ω6) and iso-C3-OH. The predominant menaquinone was menaquinone-6. The polar lipid profile consisted of phosphatidylethanolamine, one glycolipid, two aminophospholipids and five unidentified lipids. The DNA G+C content was 31.8 mol%. Based on the phenotypic, chemotaxonomic, phylogenetic and genomic results, we propose that strain DT-LB-19 represents a novel species of the genus , for which the name sp. nov. is proposed, with strain DT-LB-19 (=KCTC 82330=CCTCC AB 2023026= JSACC 11448) as the type strain.

Funding
This study was supported by the:
  • National Natural Science Foundation of China (Award No. 32170128)
    • Principle Award Recipient: NotApplicable
  • Science and Technology Support Program of Jiangsu Province (Award BM2022019)
    • Principle Award Recipient: NotApplicable
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/content/journal/ijsem/10.1099/ijsem.0.006182
2023-11-28
2024-05-08
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