Litorerythrobacter xanthomarinus gen. nov., sp. nov., a novel marine bacterium with distinct phenotypic traits from tidal mudflat sediment.
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| Autores principales: | , , , , , |
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| Formato: | Artículo científico |
| Lenguaje: | en |
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Antonie van Leeuwenhoek
2026
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| _version_ | 1868266102679666690 |
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| author | Kathiresan, Akila Kim, Hyung-Seop Li, Cong Dong, Ke Srinivasan, Sathiyaraj Lee, Sang-Seob |
| author_facet | Kathiresan, Akila Kim, Hyung-Seop Li, Cong Dong, Ke Srinivasan, Sathiyaraj Lee, Sang-Seob Kathiresan, Akila Kim, Hyung-Seop Li, Cong Dong, Ke Srinivasan, Sathiyaraj Lee, Sang-Seob |
| collection | PubMed - marine biology |
| contents | Litorerythrobacter xanthomarinus gen. nov., sp. nov., a novel marine bacterium with distinct phenotypic traits from tidal mudflat sediment. Kathiresan, Akila Kim, Hyung-Seop Li, Cong Dong, Ke Srinivasan, Sathiyaraj Lee, Sang-Seob Geologic Sediments Phylogeny RNA, Ribosomal, 16S DNA, Bacterial Base Composition Fatty Acids Republic of Korea Bacterial Typing Techniques Alphaproteobacteria Phospholipids Sequence Analysis, DNA Nucleic Acid Hybridization Phenotype A Gram-negative, aerobic, non-motile, ovoid bacterium, designated strain MF3-039, was isolated from tidal mudflat sediment sampled in Gunsan, Republic of Korea. The strain formed yellow-pigmented colonies on marine agar and was positive for catalase and oxidase. It grew at temperatures ranging from 10 to 37 °C (optimum, 25 °C), pH levels from 6.0 to 9.0 (optimum, 7.0), and 0 to 7.0% (w/v) NaCl (optimum, 2.0%). Phylogenetic analysis of 16S rRNA gene sequences revealed that strain MF3-039 clustered within the genus Altererythrobacter (family Erythrobacteraceae), with closest sequence similarity to Altererythrobacter insulae KCTC 63421 (97.9%), Altererythrobacter ishigakiensis ATCC BAA-2084 (97.9%), Altererythrobacter rubellus NBRC 112769 (97.2%), and Tsuneonella suprasediminis KCTC 62388 (97.1%). The draft genome was 2.9 Mbp with a G + C content of 60%. Genomic comparisons indicated average nucleotide identity and digital DNA-DNA hybridisation values below 95% and 70%, respectively, with related Altererythrobacter species. Chemotaxonomic analysis revealed ubiquinone-10 as the primary respiratory quinone, C ω6c and summed feature 8 (comprising C ω7c/C ω6c), and summed feature 3 (C ω7c/C ω6c) as predominant fatty acids, and diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, phosphatidylcholine, a sphingoglycolipid, an unidentified glycolipid, and an unidentified lipid as major polar lipids. The combination of phenotypic, chemotaxonomic, genomic, and phylogenetic features clearly distinguishes strain MF3-039 from existing genera within the family Erythrobacteraceae. On the basis of these polyphasic analyses, strain MF3-039 represents a novel genus and species, for which the name Litorerythrobacter xanthomarinus gen. nov., sp. nov. is proposed. The type strain is MF3-039 (= KEMB 23948 = KCTC 8705 = TBRC 19385). |
| format | Artículo científico |
| id | pubmed_41511641 |
| institution | PubMed |
| language | en |
| publishDate | 2026 |
| publisher | Antonie van Leeuwenhoek |
| record_format | pubmed |
| spellingShingle | Litorerythrobacter xanthomarinus gen. nov., sp. nov., a novel marine bacterium with distinct phenotypic traits from tidal mudflat sediment. Kathiresan, Akila Kim, Hyung-Seop Li, Cong Dong, Ke Srinivasan, Sathiyaraj Lee, Sang-Seob Geologic Sediments Phylogeny RNA, Ribosomal, 16S DNA, Bacterial Base Composition Fatty Acids Republic of Korea Bacterial Typing Techniques Alphaproteobacteria Phospholipids Sequence Analysis, DNA Nucleic Acid Hybridization Phenotype Litorerythrobacter xanthomarinus gen. nov., sp. nov., a novel marine bacterium with distinct phenotypic traits from tidal mudflat sediment. Kathiresan, Akila Kim, Hyung-Seop Li, Cong Dong, Ke Srinivasan, Sathiyaraj Lee, Sang-Seob Geologic Sediments Phylogeny RNA, Ribosomal, 16S DNA, Bacterial Base Composition Fatty Acids Republic of Korea Bacterial Typing Techniques Alphaproteobacteria Phospholipids Sequence Analysis, DNA Nucleic Acid Hybridization Phenotype A Gram-negative, aerobic, non-motile, ovoid bacterium, designated strain MF3-039, was isolated from tidal mudflat sediment sampled in Gunsan, Republic of Korea. The strain formed yellow-pigmented colonies on marine agar and was positive for catalase and oxidase. It grew at temperatures ranging from 10 to 37 °C (optimum, 25 °C), pH levels from 6.0 to 9.0 (optimum, 7.0), and 0 to 7.0% (w/v) NaCl (optimum, 2.0%). Phylogenetic analysis of 16S rRNA gene sequences revealed that strain MF3-039 clustered within the genus Altererythrobacter (family Erythrobacteraceae), with closest sequence similarity to Altererythrobacter insulae KCTC 63421 (97.9%), Altererythrobacter ishigakiensis ATCC BAA-2084 (97.9%), Altererythrobacter rubellus NBRC 112769 (97.2%), and Tsuneonella suprasediminis KCTC 62388 (97.1%). The draft genome was 2.9 Mbp with a G + C content of 60%. Genomic comparisons indicated average nucleotide identity and digital DNA-DNA hybridisation values below 95% and 70%, respectively, with related Altererythrobacter species. Chemotaxonomic analysis revealed ubiquinone-10 as the primary respiratory quinone, C ω6c and summed feature 8 (comprising C ω7c/C ω6c), and summed feature 3 (C ω7c/C ω6c) as predominant fatty acids, and diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, phosphatidylcholine, a sphingoglycolipid, an unidentified glycolipid, and an unidentified lipid as major polar lipids. The combination of phenotypic, chemotaxonomic, genomic, and phylogenetic features clearly distinguishes strain MF3-039 from existing genera within the family Erythrobacteraceae. On the basis of these polyphasic analyses, strain MF3-039 represents a novel genus and species, for which the name Litorerythrobacter xanthomarinus gen. nov., sp. nov. is proposed. The type strain is MF3-039 (= KEMB 23948 = KCTC 8705 = TBRC 19385). |
| title | Litorerythrobacter xanthomarinus gen. nov., sp. nov., a novel marine bacterium with distinct phenotypic traits from tidal mudflat sediment. |
| topic | Geologic Sediments Phylogeny RNA, Ribosomal, 16S DNA, Bacterial Base Composition Fatty Acids Republic of Korea Bacterial Typing Techniques Alphaproteobacteria Phospholipids Sequence Analysis, DNA Nucleic Acid Hybridization Phenotype |
| url | https://pubmed.ncbi.nlm.nih.gov/41511641/ |