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| Main Authors: | , , , , , |
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| Format: | Artículo científico |
| Language: | en |
| Published: |
Antonie van Leeuwenhoek
2026
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| Subjects: | |
| Online Access: | https://pubmed.ncbi.nlm.nih.gov/41511641/ |
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Table of 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).