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Volume 71, Issue 11

sp. nov., a new bacterial species harboured by the flat oyster No Access

Abstract

Three bacterial strains, named h-66, h-124 and h-125, were isolated from the haemolymph of different specimens of the flat oyster collected in Concarneau bay (Finistère, France). These strains were characterized by a polyphasic approach, including (i) whole genome analyses with 16S rRNA gene sequence alignment and pangenome analysis, determination of the G+C content, average nucleotide identity (ANI), and DNA–DNA hybridization (DDH), and (ii) fatty acid methyl ester and other phenotypic analyses. Strains h-66, h-124 and h-125 were closely related to both type strains RA15 and PAMC 28425 with less than 93.3% ANI and 52.3% DDH values. Regarding their phenotypic traits, the three strains were Gram-negative, 1–2 µm rod-shaped, aerobic, motile and non-spore-forming bacteria. Cells grew optimally at 25 °C in 2.5% NaCl and at 7–8 pH. The most abundant fatty acids were summed feature 3 (C 7/C 6), C and C 8. The strains carried a genome average size of 4.64 Mb and a G+C content of 40.28 mol%. The genetic and phenotypic results suggested that strains h-66, h-124 and h-125 belong to a new species of the genus . In this context, we propose the name sp. nov. The type strain is h-66 (=CECT 30303=CIP 111911).

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  • Accepted:
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Keyword(s): flat oyster , haemolymph and Pseudoalteromonas
© 2021 The Authors
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2021-11-05
2024-05-10
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Pseudoalteromonas ostreae sp. nov., a new bacterial species harboured by the flat oyster Ostrea edulis
Int J Syst Evol Microbiol 71, 005070 (2021); https://doi.org/10.1099/ijsem.0.005070
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