Abstract
A novel Actinobacterium strain YIM 131861 T, was isolated from lichen collected from the South Bank Forest of the Baltic Sea, Germany. It was Gram-stain-positive, strictly aerobic, catalase positive and oxidase negative, yellow pigmented. Cells were motile with a polar flagellum, irregular rod shaped and did not display spore formation. The strain grew at 15 − 30 °C (optimum 25 °C), at pH 6.0 − 10.0 (optimum pH 7.0) and in the presence of 0 − 1.5% (w/v) NaCl (optimum 1%). Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain YIM 131861 T belonged to the genus Glaciibacter, and exhibited a high sequence similarity (96.4%) with Glaciibacter superstes NBRC 104264 T. The genomic DNA G + C content of strain YIM 131861 T was 68.2 mol%. The average nucleotide identity (ANI) and digital DNA–DNA hybridization (dDDH) values between strain YIM 131861 T and Glaciibacter superstes NBRC 104264 T were 73.2 and 19.9% based on the draft genome sequence. The cell-wall peptidoglycan type was B2γ and contained the 2, 4-diaminobutyric acid as the diagnostic amino acid. Whole cell sugars were galactose, rhamnose, ribose and glucose. It contained MK-12 and MK-13 as the predominant menaquinones. The major cellular fatty acids (> 10%) were identified as anteiso-C15:0, iso-C16:0 and anteiso-C17:0. The polar lipids were diphosphatidylglycerol, phosphatidylglycerol and two unknown glycolipids. Based on the results of phenotypic, chemotaxonomic and phylogenetic analyses, strain YIM 131861 T should belong to the genus Glaciibacter and represents a novel species of the genus Glaciibacter, for which the name Glaciibacter flavus sp. nov. is proposed. The type strain is YIM 131861 T (= CGMCC 1.16588 T = NBRC 113572 T).
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Abbreviations
- R2A:
-
Reasoner’s 2A
- TSA:
-
Tryptic soy agar
- TSB:
-
Tryptic soy broth
- ANI:
-
Average Nucleotide Identity
- dDDH:
-
Digital DNA–DNA hybridization
- DPG:
-
Diphosphatidylglycerol
- PG:
-
Phosphatidylglycerol
- GL:
-
Glycolipid
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Acknowledgements
This research was funded by National Natural Science Foundation of China (31460005 and 32060001) and Major research project of Guangxi for science and technology (AA18242026). The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain YIM 131861T is MK608324 and the genome sequence is SSSN00000000.
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DFA and LQJ performed the experiments and wrote the manuscript; JFI collected the lichen samples; KZ, GDL, XYW and LL analysed the data; MGJ identified the lichen samples; YJ guided the experiments and revised the manuscript; CLJ and LSW designed the study.
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An, DF., Jiang, LQ., Zhang, K. et al. Glaciibacter flavus sp. nov., isolated from a lichen sample. Arch Microbiol 203, 2439–2444 (2021). https://doi.org/10.1007/s00203-021-02247-0
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DOI: https://doi.org/10.1007/s00203-021-02247-0