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  • Title: Arcobacter lekithochrous sp. nov., isolated from a molluscan hatchery.
    Author: Diéguez AL, Balboa S, Magnesen T, Romalde JL.
    Journal: Int J Syst Evol Microbiol; 2017 May; 67(5):1327-1332. PubMed ID: 28109200.
    Abstract:
    Four bacterial strains, LFT 1.7T, LT2C 2.5, LT4C 2.8 and TM 4.6, were isolated from great scallop (Pecten maximus) larvae and tank seawater in a Norwegian hatchery and characterized by a polyphasic approach including determination of phenotypic, chemotaxonomic and genomic traits. All were Gram-stain-negative, motile rods, oxidase- and catalase-positive and required sea salts for growth. Major fatty acids present were summed feature 3 (C16 : 1ω7c/C16 : 1ω6c), summed feature 8 (C18 : 1ω7c or C18 : 1ω6c), C16 : 0, C14 : 0, summed feature 2 (C14 : 0 3-OH/iso-C16 : 1 I), C12 : 0 3-OH and C12 : 0. Strain LFT 1.7T contained menaquinone MK-6 as the sole respiratory quinone. Phylogenetic analysis based on 16S rRNA gene sequences indicated that all strains formed a distinct lineage within the genus Arcobacter with a low similarity to known species (94.77-95.32 %). The DNA G+C content was 28.7 mol%. Results of in silico DNA-DNA hybridization and average nucleotide identity confirmed that the isolates constitute a novel species of Arcobacter, for which the name Arcobacter lekithochrous sp. nov. is proposed. The type strain is LFT 1.7T (=CECT 8942T=DSM 100870T).
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