Dyadobacter sandarakinus sp. nov., isolated from Arctic tundra soil, and emended descriptions of Dyadobacter alkalitolerans, Dyadobacter koreensis and Dyadobacter psychrophilus
| Autor: | Xiaoya Peng, Qiang Xu, Jia Liu, Jingjing Niu, Yanyan Zheng, Fang Peng, Yongping Zhang, Kun Qin |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
food.ingredient
Phylogenetic tree Strain (chemistry) Dyadobacter psychrophilus General Medicine Biology Dyadobacter alkalitolerans medicine.disease_cause 16S ribosomal RNA Dyadobacter koreensis Microbiology Dyadobacter food Dyadobacter ginsengisoli medicine Ecology Evolution Behavior and Systematics |
| Zdroj: | International Journal of Systematic and Evolutionary Microbiology. 71 |
| ISSN: | 1466-5034 1466-5026 |
| DOI: | 10.1099/ijsem.0.005103 |
| Popis: | Strain Q3-56T, isolated from Arctic tundra soil, was found to be a Gram-stain-negative, yellow-pigmented, oxidase- and catalase-positive, non-motile, non-spore-forming, rod-shaped and aerobic bacterium. Strain Q3-56T grew optimally at pH 7.0 and 28 °C. The strain could tolerate up to 1 % (w/v) NaCl with optimum growth in the absence of NaCl. The strain was not sensitive to oxacillin and ceftazidime. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain Q3-56T belonged to the genus Dyadobacter . Strain Q3-56T showed the highest sequence similarities to Dyadobacter luticola T17T (96.58 %), Dyadobacter ginsengisoli Gsoil 043T (96.50 %), Dyadobacter flavalbus NS28T (96.43 %) and Dyadobacter bucti QTA69T (96.43 %). The predominant respiratory isoprenoid quinone was identified as MK-7, The polar lipid profile of strain Q3-56T was found to contain one phosphatidylethanolamine, three unidentified aminolipids, three unidentified lipids and one unidentified phospholipid. The G+C content of the genomic DNA was determined to be 49.1 mol%. The main fatty acids were summed feature 3 (comprising C16 : 1 ω7c/C16 : 1 ω6c), iso-C15 : 0, C16 : 1 ω5c and iso-C16 : 1 3-OH. On the basis of the evidence presented in this study, a novel species of the genus Dyadobacter , Dyadobacter sandarakinus sp. nov., is proposed, with the type strain Q3-56T (=CCTCC AB 2019271T=KCTC 72739T). Emended descriptions of Dyadobacter alkalitolerans , Dyadobacter koreensis and Dyadobacter psychrophilus are also provided. |
| Databáze: | OpenAIRE |
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