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Updated: May 23, 2026

Synthesis and Assay of Vibrio Quorum Sensing Inhibitors
Published on: May 31, 2024
Vibrio inhibens sp. nov., a novel bacterium with inhibitory activity against Vibrio species
José Luis Balcázar1, Miquel Planas, José Pintado
1Instituto de Investigaciones Marinas, Consejo Superior de Investigaciones Científicas-IIM-CSIC, c/. Eduardo Cabello 6, Vigo, Spain. jlbalcazar@icra.cat
Abstract:
Strain BFLP-10(T), isolated from faeces of wild long-snouted seahorses (Hippocampus guttulatus), is a Gram-negative, motile and facultatively anaerobic rod. This bacterium produces inhibitory activity against Vibrio species. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain BFLP-10(T) was a member of the genus Vibrio and was most closely related to Vibrio owensii (99%), Vibrio communis (98.9%), Vibrio sagamiensis (98.9%) and Vibrio rotiferianus (98.4%). However, multilocus sequence analysis using gyrB, pyrH, recA and topA genes revealed low levels of sequence similarity (<91.2%) with these closely related species. In addition, strain BFLP-10(T) could be readily differentiated from other closely related species by several phenotypic properties and fatty acid profiles. The G+C content of the DNA was 45.6 mol%. On the basis of phenotypic, chemotaxonomic and phylogenetic data, strain BFLP-10(T) represents a novel species within the genus Vibrio, for which the name Vibrio inhibens sp. nov. is proposed. The type strain is BFLP-10(T) (=CECT 7692(T)=DSM 23440(T)).
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