%0 Journal Article %A Zamora, L. %A Vela, A. I. %A Palacios, M. A. %A Sánchez-Porro, C. %A Svensson-Stadler, L. A. %A Domínguez, L. %A Moore, E. R. B. %A Ventosa, A. %A Fernández-Garayzábal, J. F. %T Chryseobacterium viscerum sp. nov., isolated from diseased fish %D 2012 %J International Journal of Systematic and Evolutionary Microbiology, %V 62 %N Pt_12 %P 2934-2940 %@ 1466-5034 %R https://doi.org/10.1099/ijs.0.036699-0 %I Microbiology Society, %X A taxonomic study was carried out on five Gram-staining-negative, catalase- and oxidase-positive, rod-shaped bacteria isolated from the gills and livers of five diseased rainbow trout. The five novel isolates were designated strains 687B-08T, 445-08, 452-08, 453B-08 and 967B-08. In phylogenetic analyses based on 16S rRNA gene sequences, the five novel strains appeared almost identical (99.0–100 % sequence similarity) and to belong to the genus Chryseobacterium . Strain 687B-08T (the strain selected to represent the five novel isolates) was found to be most closely related to Chryseobacterium oncorhynchi 701B-08T (98.9 % sequence similarity), Chryseobacterium ureilyticum F-Fue-04IIIaaaaT (98.6 %), Chryseobacterium indologenes ATCC 29897T (98.3 %), Chryseobacterium jejuense JS17-8T (98.1 %) and Chryseobacterium gleum ATCC 35910T (98.1 %). In DNA–DNA hybridizations, DNA–DNA relatedness values of 99–100 % were recorded between the five novel strains. Lower DNA–DNA relatedness values (21–57 %) were recorded between strain 687B-08T and C. oncorhynchi 701B-08T, C. ureilyticum F-Fue-04IIIaaaaT and the type strains of other closely related, established species of the genus Chryseobacterium . The predominant respiratory quinone of strain 687B-08T was MK-6 and the major cellular fatty acids were iso-C15 : 0, iso-C17 : 1ω9c, iso-C17 : 0 3-OH and C16 : 1ω6c. The G+C content of the genomic DNA of strain 687B-08T was 38.6 mol%. Based on the phenotypic and genotypic evidence, the five novel strains isolated from rainbow trout represent a single, novel species of the genus Chryseobacterium , for which the name Chryseobacterium viscerum sp. nov. is proposed. The type strain is 687B-08T ( = CECT 7793T  = CCUG 60103T). %U https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/ijs.0.036699-0