| Autor: |
Fatou Samba Diouf, Mamadou Beye, Mapenda Gaye, Babacar Mbaye, Stephane Alibar, Mariema Sarr, Gregory Dubourg, Jean-Christophe Lagier, Cheikh Sokhna, Florence Fenollar, Pierre-Edouard Fournier, Cheikh Ibrahima Lo |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
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| Zdroj: |
International Journal of Microbiology, Vol 2023 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
1687-9198 |
| DOI: |
10.1155/2023/3802590 |
| Popis: |
Blood is a precious biological liquid that is normally sterile. Therefore, bacteria in the bloodstream are shown a priori anomaly. A blood culture is systematically performed to diagnose the cause of the bacteremia. Indeed, a patient received in our service had a thalassemia major and underwent a genoidentical transplant. Then, a blood test was performed to diagnose a four-day fever. In this context, we have isolated strain Marseille-Q2617 from the blood sample. It revealed a new bacterial strain that belongs to the genus Streptococcus. It is a Gram-positive coccus, nonmotile, and nonspore forming. The major fatty acid found is hexadecanoic acid, with 49.5%. A taxonomic method was used to characterize the strain by studying their phenotypic, phylogenetic, and genomic characteristics. In addition, sequence analysis of the 16S rRNA gene shows that the strain Marseille-Q2617 has 99.94% sequence similarity to Streptococcus mitis. Average nucleotide identity (ANI) analysis for strain Marseille-Q2617T showed the highest similarity of 92.9% with S. mitis. The DNA-DNA hybridization value obtained (50.2%) between strain Marseille-Q2607 and S. mitis, its closest related species, was below the recommended threshold ( |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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