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Emsley SA, Loughran RM, Shlafstein MD, Pfannmuller KM, De La Flor YT, Lein CG, Dove NC, Koyack MJ, Oline DK, Hanson TE, Videau P, Saw JH, Ushijima B. Fluctibacter corallii gen. nov., sp. nov., isolated from the coral Montipora capitata on a reef in Kāne'ohe Bay, O'ahu, Hawai'i, reclassification of Aestuariibacter halophilus as Fluctibacter halophilus comb. nov., and Paraglaciecola oceanifecundans as a later heterotypic synonym of Paraglaciecola agarilytica. Antonie Van Leeuwenhoek 2024; 117:45. [PMID: 38424217 DOI: 10.1007/s10482-024-01934-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Accepted: 01/25/2024] [Indexed: 03/02/2024]
Abstract
Strain AA17T was isolated from an apparently healthy fragment of Montipora capitata coral from the reef surrounding Moku o Lo'e in Kāne'ohe Bay, O'ahu, Hawai'i, USA, and was taxonomically evaluated using a polyphasic approach. Comparison of a partial 16S rRNA gene sequence found that strain AA17T shared the greatest similarity with Aestuariibacter halophilus JC2043T (96.6%), and phylogenies based on 16S rRNA gene sequences grouped strain AA17T with members of the Aliiglaciecola, Aestuariibacter, Lacimicrobium, Marisediminitalea, Planctobacterium, and Saliniradius genera. To more precisely infer the taxonomy of strain AA17T, a phylogenomic analysis was conducted and indicated that strain AA17T formed a monophyletic clade with A. halophilus JC2043T, divergent from Aestuariibacter salexigens JC2042T and other related genera. As a result of monophyly and multiple genomic metrics of genus demarcation, strain AA17T and A. halophilus JC2043T comprise a distinct genus for which the name Fluctibacter gen. nov. is proposed. Based on a polyphasic characterisation and identifying differences in genomic and taxonomic data, strain AA17T represents a novel species, for which the name Fluctibacter corallii sp. nov. is proposed. The type strain is AA17T (= LMG 32603 T = NCTC 14664T). This work also supports the reclassification of A. halophilus as Fluctibacter halophilus comb. nov., which is the type species of the Fluctibacter genus. Genomic analyses also support the reclassification of Paraglaciecola oceanifecundans as a later heterotypic synonym of Paraglaciecola agarilytica.
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Affiliation(s)
- Sarah A Emsley
- Department of Biology, Southern Oregon University, Ashland, OR, USA
| | - Rachel M Loughran
- Microbiology Graduate Program, University of Delaware, Newark, DE, USA
| | | | | | - Yesmarie T De La Flor
- Department of Biology and Marine Biology, University of North Carolina Wilmington, Wilmington, NC, USA
| | | | | | - Marc J Koyack
- School of Arts and Sciences, Gwynedd Mercy University, Gwynedd Valley, PA, USA
| | - David K Oline
- Department of Biology, Southern Oregon University, Ashland, OR, USA
| | - Thomas E Hanson
- Microbiology Graduate Program, University of Delaware, Newark, DE, USA
- School of Marine Science and Policy and Delaware Biotechnology Institute, University of Delaware, Delaware, USA
| | - Patrick Videau
- Department of Biology, Southern Oregon University, Ashland, OR, USA
- AgBiome, Research Triangle Park, NC, USA
| | - Jimmy H Saw
- Department of Biological Sciences, The George Washington University, Washington, DC, USA.
| | - Blake Ushijima
- Department of Biology and Marine Biology, University of North Carolina Wilmington, Wilmington, NC, USA.
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Wang Q, Hu XY, Sun LP, Niu HJ, Pei CX, Li Y, Xia CQ. Alteromonas Aquimaris sp. nov., Isolated from Surface Seawater. Curr Microbiol 2023; 80:343. [PMID: 37725183 DOI: 10.1007/s00284-023-03472-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 09/02/2023] [Indexed: 09/21/2023]
Abstract
A Gram-negative, aerobic, motile by flagellum, and rod-shaped bacterium, designated ASW11-7T, was isolated from coastal surface seawater sample collected from the Yellow Sea, PR China. Strain ASW11-7T 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 ASW11-7T belongs to the genus Alteromonas and most closely related to Alteromonas ponticola MYP5T (99.6% similarity), followed by Alteromonas confluentis DSSK2-12T (98.2%), Alteromonas lipolytica JW12T (98.2%), and Alteromonas hispanica F-32T (98.0%). The draft genome of strain ASW11-7T 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 ASW11-7T 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 ASW11-7T were C16:0, summed feature 3 (C16:1ω7c/C16:1ω6c), and summed feature 8 (C18:1ω7c/C18:1ω6c). 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 ASW11-7T is considered to represent a novel Alteromonas species, for which the name Alteromonas aquimaris sp. nov. is proposed. The type strain is ASW11-7T (= KCTC 92853T = MCCC 1K07240T).
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Affiliation(s)
- Qin Wang
- College of Animal Science, Shanxi Agricultural University, Taigu, Shanxi, 030801, China
| | - Xin-Yuan Hu
- College of Animal Science, Shanxi Agricultural University, Taigu, Shanxi, 030801, China
| | - Li-Ping Sun
- College of Animal Science, Shanxi Agricultural University, Taigu, Shanxi, 030801, China
| | - Hui-Jing Niu
- College of Animal Science, Shanxi Agricultural University, Taigu, Shanxi, 030801, China
| | - Cai-Xia Pei
- College of Animal Science, Shanxi Agricultural University, Taigu, Shanxi, 030801, China
| | - Yi Li
- College of Life Sciences, Shanxi Agricultural University, Taigu, Shanxi, 030801, China.
| | - Cheng-Qiang Xia
- College of Animal Science, Shanxi Agricultural University, Taigu, Shanxi, 030801, China.
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Sun L, Hu X, Wang Q, Niu H, Pei C, Li Y, Xia C. Alteromonas salexigens sp. nov., isolated from coastal seawater. Arch Microbiol 2023; 205:317. [PMID: 37612565 DOI: 10.1007/s00203-023-03658-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 08/10/2023] [Accepted: 08/12/2023] [Indexed: 08/25/2023]
Abstract
A Gram-negative, aerobic, short rod-shaped bacterium, designated ASW11-19T, was isolated from a coastal seawater sample of the Yellow Sea, PR China. Strain ASW11-19T grew optimally at 37 °C, 3.0-5.0% (w/v) NaCl and pH 7.5. Phylogenetic analysis based on the 16S rRNA gene sequences revealed that strain ASW11-19T belonged to the genus Alteromonas and most closely related to Alteromonas profundi 345S023T and Alteromonas fortis 1T (98.4%, both). The draft genome was 3.55 Mb with 3150 protein-coding genes, 18 contigs, and a DNA G+C content was 44.4%. The digital DNA-DNA hybridization and average nucleotide identity values were below the species-delineating thresholds. The major fatty acids were summed feature 3 (C16:1ω7c/C16:1ω6c), summed feature 8 (C18:1ω7c/C18:1ω6c), and C16:0. The sole respiratory quinone was ubiquinone 8. The polar lipids were phosphatidylethanolamine, phosphatidylglycerol, phospholipid, and two unidentified lipids. Based on these genomic data, phenotypic and chemotaxonomic properties, strain ASW11-19T is considered to represent a novel species of the genus Alteromonas. The name Alteromonas salexigens sp.nov. is proposed for ASW11-19T (=MCCC 1K07239T=KCTC 92247T).
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Affiliation(s)
- Liping Sun
- College of Animal Science, Shanxi Agricultural University, Taigu, 030801, Shanxi, China
| | - Xinyuan Hu
- College of Animal Science, Shanxi Agricultural University, Taigu, 030801, Shanxi, China
| | - Qin Wang
- College of Animal Science, Shanxi Agricultural University, Taigu, 030801, Shanxi, China
| | - Huijing Niu
- College of Animal Science, Shanxi Agricultural University, Taigu, 030801, Shanxi, China
| | - Caixia Pei
- College of Animal Science, Shanxi Agricultural University, Taigu, 030801, Shanxi, China
| | - Yi Li
- College of Life Sciences, Shanxi Agricultural University, Taigu, 030801, Shanxi, China.
| | - Chengqiang Xia
- College of Animal Science, Shanxi Agricultural University, Taigu, 030801, Shanxi, China.
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