Abstract
A Gram-negative, aerobic, oval-shaped, and light red pigmented bacterium, designated T6-1T, was isolated from the mash of wine collected from a wine-making laboratory simulated fermenter located in Beijing, China. The optimal growth of T6-1T occurred at 30 °C, pH 7.0 with 1% NaCl. The sole respiratory quinone was menaquinone-7 (MK-7). The principal cellular fatty acids (>5%) were iso-C15:0, iso-C17:0 3OH, C16:1 ω5c, and iso-C17:0. The major polar lipids were PE (phosphatidylethanolamine), PL (unidentified phospholipid), and L1-2 (unidentified lipids). 16S rRNA phylogenetic analysis indicated that strain T6-1T belonged to the genus Pontibacter. The 16S rRNA gene sequence of strain T6-1T was most similar to Pontibacter amylolyticus 9-2T (95.92%). The genomic DNA G+C content of strain T6-1 was 50.34 mol%. The digital DNA–DNA relatedness and average nucleotide identity value between T6-1T and 9-2T was 20.20% and 74.18%, respectively. Polyphasic taxonomy analysis indicated that strain T6-1T represents a novel species of the genus Pontibacter, for which the name Pontibacter beigongshangensis sp. nov. is proposed, with the type strain T6-1T (= CGMCC 1.17104T = KCTC 72413T).
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Funding
This study was supported by Youth Funding of Beijing Technology and Business University (PXM2019_014213_000007), the Beijing Technology and Business University Graduate Research Capacity Improvement Program in 2019, the National Key Research and Development Program of China (2018YFC1603606). We would like to thank China General Microbiological Culture Collection Center (CGMCC) for their help with the predominant quinone, fatty acids, polar lipids, and Biolog GENIII analysis, Professor Yingmin Jia with preparing Biolog GEN III MicroStation System.
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Q.R. and J.L.X.: Methodology; L.P.S.: Writing and Original Draft Preparation; Z.B.S.: Review & Editing; X.X: Species identification; J.L.: Strain isolation; X. L.: Supervision; Y.H.: Transmission electron microscope. All authors have read and approved the manuscript.
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Nucleotide Sequence Accession Number
The 16S rRNA gene sequence of strain T6-1T was submitted in GenBank to get accession number MK860107.1. The whole genome shotgun sequencing project of strain T6-1T has been deposited in GenBank to get accession number VFSD00000000. The type strain is T6-1T (= CGMCC 1.17104T = KCTC 72413T).
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Xu, J., Sun, L., Sun, Z. et al. Pontibacter beigongshangensis sp. nov., Isolated from the Mash of Wine. Curr Microbiol 76, 1525–1530 (2019). https://doi.org/10.1007/s00284-019-01782-w
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DOI: https://doi.org/10.1007/s00284-019-01782-w