Alteromonas Aquimaris sp. nov., Isolated from Surface Seawater

• Published in: Current microbiology Vol. 80; no. 11; p. 343
• Main Authors: Wang, Qin, Hu, Xin-Yuan, Sun, Li-Ping, Niu, Hui-Jing, Pei, Cai-Xia, Li, Yi, Xia, Cheng-Qiang
• Format: Journal Article
• Language: English
• Published: New York Springer US 01.11.2023; Springer Nature B.V
• Subjects: Alteromonas; bacteria; Biomedical and Life Sciences; Biotechnology; Chemical analysis; chemotaxonomy; China; Deoxyribonucleic acid; DNA; Fatty acids; Flagella; flagellum; Gene sequencing; Genomes; genomics; Hybridization; Life Sciences; Lipids; Microbiology; New species; Novel Prokaryotic Taxa; nucleic acid hybridization; Nucleotide sequence; Nucleotides; phenotype; Phosphatidylethanolamine; phosphatidylethanolamines; Phosphatidylglycerol; Phylogenetics; Phylogeny; Pseudogenes; Quinones; rRNA 16S; Seawater; Sodium chloride; Water analysis; Yellow Sea; Yellow Sea; China
• ISSN: 0343-8651; 1432-0991; 1432-0991
• DOI: 10.1007/s00284-023-03472-0

A Gram-negative, aerobic, motile by flagellum, and rod-shaped bacterium, designated ASW11-7 T , was isolated from coastal surface seawater sample collected from the Yellow Sea, PR China. Strain ASW11-7 T grew optimally at 37℃, 4.0% (w/v) NaCl and pH 7.0. Phylogenetic analysis based on the 16S rRNA gene sequences revealed that strain ASW11-7 T belongs to the genus Alteromonas and most closely related to Alteromonas ponticola MYP5 T (99.6% similarity), followed by Alteromonas confluentis DSSK2-12 T (98.2%), Alteromonas lipolytica JW12 T (98.2%), and Alteromonas hispanica F-32 T (98.0%). The draft genome of strain ASW11-7 T had a length of 3,530,922 bp with a G + C content of 44.9%, predicting 3108 coding sequences, 5 rRNA, 4 ncRNAs, 49 tRNAs genes, and 18 pseudogenes. The average nucleotide identity and digital DNA-DNA hybridization values between genomic sequences of strain ASW11-7 T and closely related species of Alteromonas were in ranges of 66.9–77.8% and 18.3–27.5%, respectively. The major fatty acids of strain ASW11-7 T were C 16:0 , summed feature 3 (C 16:1 ω 7 c /C 16:1 ω 6 c ), and summed feature 8 (C 18:1 ω 7 c /C 18:1 ω 6 c ). The predominant respiratory quinone was Q-8 and the major polar lipids were phosphatidylethanolamine and phosphatidylglycerol. Based on the phenotypic properties, genotypic distinctiveness, and chemotaxonomic features, strain ASW11-7 T is considered to represent a novel Alteromonas species, for which the name Alteromonas aquimaris sp. nov. is proposed. The type strain is ASW11-7 T (= KCTC 92853 T  = MCCC 1K07240 T ).