Tenacibaculum bernardetii sp. nov., isolated from Atlantic salmon (Salmo salar L.) cultured in Chile

被引:2
|
作者
Avendano-Herrera, Ruben [1 ,2 ,3 ]
Saldarriaga-Cordoba, Monica [2 ,4 ]
Irgang, Rute [2 ]
机构
[1] Univ Andres Bello, Fac Ciencias Vida, Lab Patol Organismos Acuat & Biotecnol Acuicola, Vina Del Mar, Chile
[2] Interdisciplinary Ctr Aquaculture Res INCAR, Vina Del Mar, Chile
[3] Univ Andres Bello, Ctr Invest Marina Quintay CIMARQ, Quintay, Chile
[4] Univ Bernardo OHiggins, Ctr Invest Recursos Nat & Sustentabil, Santiago, Chile
关键词
Atlantic salmon; Chile; tenacibaculosis; Tenacibaculum; PROPOSED MINIMAL STANDARDS; MARITIMUM; DICENTRARCHI; FLAVOBACTERIACEAE; ALGORITHM; PATHOGEN; FAMILY;
D O I
10.1099/ijsem.0.006102
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Strain PVT-9aT, a novel Gram-stain-negative, aerobic, non-spore-forming, motile-by-gliding and rod-shaped bacterium, was isolated from a skin lesion of Atlantic salmon (Salmo salar L.) during a tenacibaculosis outbreak that occurred in 2016 at a Chilean fish farm. Phylogenetic analysis based on 16S rRNA gene sequencing confirmed that strain PVT-9aT belonged to the genus Tenacibaculum , being related to the closest type strains Tenacibaculum haliotis KCTC 52419T (98.49 % sequence similarity), Tenacibaculum aestuariivivum JDTF-79(T) (97.36 %), Tenacibaculum insulae JDTF-31T (97.29 %) and Tenacibaculum ovolyticum IFO 15947(T) (97.15 %). The genome size of strain PVT-9a(T) was 2.73 Mb with a DNA G+C content 31.09 mol%. Average nucleotide identity analysis among 30 Tenacibaculum species rendered the most similar strains as follows: T. haliotis KCTC 52419(T) (87.91 %), T. ovolyticum IFO 15947(T )(82.47 %), Tenacibaculum dicentrarchi 35/09T (81.08 %), Tenacibaculum finnmarkense gv finnmarkense TNO006(T) (80.91 %) and T. finnmarkense gv ulcerans TNO010T (80.96 %). Menaquinone MK-6 was the predominant respiratory quinone. The predominant cell fatty acids (>10 %) were iso-C15 : 0, iso-C15 : 1 G and iso-C15 : 0 3-OH. Phenotypic, chemotaxonomic and genomic data supported the assignment of strain PVT-9a(T) (=DSM 115155(T)=RGM 3472(T)) as representing a novel species of Tenacibaculum , for which the name Tenacibaculum bernardetii sp. nov. is proposed.
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页数:9
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