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| Podeur, Gaetan; Dalgaard, Paw; Leroi, Francoise; Prevost, Herve; Ernborg, Jette; Martinussen, Jan; Hansen, Lars Hestbjerg; Filet, Marie-france. |
| Histamine fish poisoning is common and due to toxic concentrations of histamine often produced by Gram-negative bacteria in fin-fish products with a high content of the free amino acid histidine. The genus Morganella includes two species previously reported to cause incidents of histamine fish poisoning. Morganella morganii and Morganella psychrotolerans are both strong producer of histamine. However, little is known about the occurrence and critical stages for fish contamination with these bacteria. To elucidate contamination routes of Morganella, specific real-time quantitative PCR (RTi qPCR) methods for quantification of M. morganii and M. psychrotolerans have been developed. Selective primers amplified a 110 bp region of the vasD gene for M.... |
| Tipo: Text |
Palavras-chave: Histamine-producing bacteria; Tuna; Selective medium; Enterobacteriaceae; Galactokinase; Type VI secretion system. |
| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00254/36551/35096.pdf |
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| Rodrigues, Sophie; Paillard, Christine; Van Dillen, Sabine; Tahrioui, Ali; Berjeaud, Jean-marc; Dufour, Alain; Bazire, Alexis. |
| Marine pathogenic bacteria are able to form biofilms on many surfaces, such as mollusc shells, and they can wait for the appropriate opportunity to induce their virulence. Vibrio tapetis can develop such biofilms on the inner surface of shells of the Ruditapes philippinarum clam, leading to the formation of a brown conchiolin deposit in the form of a ring, hence the name of the disease: Brown Ring Disease. The virulence of V. tapetis is presumed to be related to its capacity to form biofilms, but the link has never been clearly established at the physiological or genetic level. In the present study, we used RNA-seq analysis to identify biofilm- and virulence-related genes displaying altered expression in biofilms compared to the planktonic condition. A... |
| Tipo: Text |
Palavras-chave: Biofilm; Virulence; Vibrio tapetis; Transcriptome; Quorum sensing; Type VI secretion system; Brown ring disease. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00470/58140/60611.pdf |
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