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Draft genome and description of Chryseobacterium phocaeense sp. nov.: a new bacterial species isolated from the sputum of a cystic fibrosis patient

Abstract : Strain 6021061333 T was isolated from the sputum of 16-year-old girl with cystic fibrosis following a pulmonary exacerba-tion. This bacterial strain could not be identified by our systematic MALDI-TOF mass spectrometry screening on a Micro-Flex. This led to the sequencing of the 16S rRNA gene, which shows 97.83% sequence identity with Chryseobacterium kwangjuense strain KJ1R5 T , the phylogenetic closely related type strain of a species with standing in nomenclature, which putatively classifies it as a new species. Colonies are yellow, circular and 0.5-1 mm in diameter after cultivation at 28 °C for 24 h on 5% sheep blood-enriched Colombia agar. Growth occurs at temperatures in the range of 28-37 °C (optimally at 28 °C). Strain 6021061333 T is Gram-negative, non-motile and strictly aerobic bacillus. It is catalase and oxidase positive. The 4,864,678 bp-long genome, composed of five contigs, has a G+C content of 38.86%. Out of the 4427 predicted genes, 4342 were protein-coding genes and 85 were RNAs. The major fatty acids are branched (13-methyl-tetradecanoic acid and 15-methyl-hexadecenoic acid). Digital DNA-DNA hybridization (dDDH) estimation and average nucleotide identity (ANI) of the strain 6021061333 T against genomes of the type strains of related species ranged between 23.60 and 50.40% and between 79.31 and 93.06%, respectively. According to our taxonogenomics results, we propose the creation of Chryseobacterium phocaeense sp. nov. that contains the type strain 6021061333 T (= CSUR P2660, = CECT 9670).
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Submitted on : Monday, April 20, 2020 - 11:51:25 AM
Last modification on : Friday, February 4, 2022 - 3:26:12 AM

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Rita Abou Abdallah, Liliane Okdah, Jacques Bou Khalil, Hussein Anani, Pierre-Edouard Fournier, et al.. Draft genome and description of Chryseobacterium phocaeense sp. nov.: a new bacterial species isolated from the sputum of a cystic fibrosis patient. Archives of Microbiology, Springer Verlag, 2019, 1, ⟨10.1007/s00203-019-01704-1⟩. ⟨hal-02263553⟩

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