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Int J Syst Evol Microbiol. 2017 May;67(5):1327-1332. doi: 10.1099/ijsem.0.001809. Epub 2017 May 30.

Arcobacter lekithochrous sp. nov., isolated from a molluscan hatchery.

Author information

1
1​Departamento de Microbiología y Parasitología, CIBUS-Facultad de Biología, Universidade de Santiago, 15782 Santiago de Compostela, Spain.
2
2​Department of Biology, Faculty of Mathematics and Natural Sciences, University of Bergen, Bergen, Norway.

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).

PMID:
28109200
DOI:
10.1099/ijsem.0.001809
[Indexed for MEDLINE]

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