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Listeria ilorinensis sp. nov. isolated from cow milk cheese in Nigeria

Abstract : During microbial assessment of cow milk cheese products in the city of Ilorin, Nigeria, a Listeria-like isolate was detected which could not be assigned to any known species. Whole- genome sequence analyses against all currently known 26 Listeria species confirmed that this isolate constitutes a new taxon within the Listeria genus, with highest similarity to Listeria costaricensis (average nucleotide identity BLAST of 82.66%, in silico DNA-DNA hybridization of 28.3%). Phenotypically, it differs from L. costaricensis by the inability to ferment D-sucrose, L-fucose and starch. The absence of haemolysis and Listeria pathogenic islands suggest that this novel species is not pathogenic for humans and animals. The name Listeria ilorinensis sp. nov. is proposed, with the type strain CLIP 2019/01311T (=CIP111875T = DSM 111566T)
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Submitted on : Wednesday, June 15, 2022 - 3:38:31 PM
Last modification on : Saturday, June 25, 2022 - 3:44:06 AM

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Ibrahim Adisa Raufu, Alexandra Moura, Guillaume Vales, Olayiwola Akeem, Abdulfatai Aremu, et al.. Listeria ilorinensis sp. nov. isolated from cow milk cheese in Nigeria. International Journal of Systematic and Evolutionary Microbiology, Microbiology Society, In press. ⟨pasteur-03696084⟩

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