Pseudidiomarina piscicola sp. nov., isolated from cultured European seabass, Dicenthrarchus labrax.

ABSTRACT: Strain CECT 9734 ^T, a Gram-negative, aerobic, chemoorganotrophic bacterium, motile by polar flagella, was isolated from cultured European seabass, Dicenthrarchus labrax, in Spain. It grows from 5 to 42 ºC, 6-9 pH and 1-12% total salinity. Major cellular fatty acids are C_15:0 iso, summed feature 9 (C_17:1 iso w9c/C_16:0 10-methyl) and C_17:0 iso. The genome size is 2.5 Mbp and G + C content is 49.5 mol%. Comparative analysis of the 16S rRNA gene sequence shows that the strain is a member of Pseudidiomarina, with highest similarities with Pseudidiomarina halophila (97.0%) and Pseudidiomarina salinarum (96.9%). Phylogenomic tree based on UBCG program shows P. halophila as its closest relative. ANI and in-silico DDH with other Pseudidiomarina spp. are lower than 87 and 20%, respectively, suggesting that strain CECT 9734 ^T represents a new species, for which we propose the name Pseudidiomarina piscicola sp. nov. and CECT 9734 ^T (= LUBLD50 7a^T = LMG 31044 ^T) as type strain.

SUBMITTER: Macian MC 

PROVIDER: S-EPMC8055624 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature