Abstract
A novel Paracoccus-related strain, designated YLB-12T, was isolated from a sediment sample from the tidal zone of Shapowei Port, Xiamen, Fujian Province, PR China. The novel strain is a Gram-stain-negative, short, rod-shaped, nonmotile, catalase- and oxidase-positive strain that grows at 10–37 °C and pH 5.0–9.0 in the presence of 0–12.0% (w/v) NaCl. Phylogenetic analysis of the 16S rRNA gene sequences indicated that this strain belongs to the genus Paracoccus and that its highest sequence similarity was to Paracoccus homiensis DD-R11T (98.5%), followed by Paracoccus zeaxanthinifaciens ATCC 21588T (97.4%), Paracoccus rhizosphaerae LMG 26205T (97.2%), Paracoccus beibuensis CGMCC 1.7295T (97.1%) and Paracoccus halotolerans CFH 90064T (97.0%). The DNA‒DNA hybridization values between strain YLB-12T and the five closely related type strains ranged from 20.4 to 22.4%. The genomic G+C content of strain YLB-12T was 63.7%. In addition to diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylcholine and phosphatidylglycerol, the polar lipids of the strain YLB-12T also consisted of an unidentified glycolipid and four unidentified polar lipids. The cells contained summed feature 8 (C18: 1ω6c /C18: 1ω7c, 62.7%) as the major cellular fatty acid and ubiquinone-10 as the predominant menaquinone. On the basis of its phenotypic and genotypic characteristics, strain YLB-12T represents a novel species within the genus Paracoccus, for which the name Paracoccus maritimus sp. nov. is proposed. The type strain was YLB-12T (= MCCC 1A17213T = KCTC 82197T).
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Abbreviations
- MCCC:
-
Marine Culture Collection of China
- KCTC:
-
Korean Collection for Type Cultures
- DDH:
-
DNA–DNA hybridization
- ANI:
-
Average nucleotide identity
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Acknowledgements
The authors would like to acknowledge the opinions of Marine Culture Collection of China (MCCC) experts for the nomenclature of this strain.
Funding
This work was supported by the fund of the National Natural Science Foundation of China (No.42206101); Scientific Research Foundation of Third Institute of Oceanography, MNR (No. 2023003); National Microbial Resource Center (No. NMRC-2022-9) and National Science and Technology Fundamental Resources Investigation Program of China (2021FY100900).
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Conceive and design the experiments: Libo Yu, Shiping Wei and Zongze Shao; Perform the experiments:Libo Yu and Guangxin Xu; Data curation: Libo Yu and Qiliang Lai; Writing the paper: Libo Yu; All authors approved the final manuscript.
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The GenBank accession number for the 16S rRNA gene sequence of Paracoccus maritimus YLB-12T is ON139213. The draft genome accession number for strain YLB-12T is JANAVZ000000000. The transmission electron micrographs of the cells and polar lipids of strain YLB-12T, maximum-likelihood tree and minimum evolution tree are available as supplementary figures in the CMIC online.
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Yu, L., Xu, G., Wei, S. et al. Isolation and Characterization of Paracoccus maritimus sp. nov., from Intertidal Sediment. Curr Microbiol 81, 134 (2024). https://doi.org/10.1007/s00284-024-03637-5
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DOI: https://doi.org/10.1007/s00284-024-03637-5