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| Wery, Nathalie; Moricet, Jean-marc; Cueff, Valerie; Jean, Joelle; Pignet, Patricia; Lesongeur, Francoise; Cambon-bonavita, Marie-anne; Barbier, Georges. |
| A thermophilic, anaerobic, chemo-organotrophic bacterium, designated MV1087(T), was isolated from a deep-sea hydrothermal chimney sample collected from the Mid-Atlantic Ridge. The cells were straight, motile and stained Gram-negative. Growth was observed from 45 to 65 degreesC, with an optimum around 65 degreesC. No growth was observed at 40 or 70 degreesC. Growth was observed from pH 5.5 to 9.0 and the optimum pH was around 7. The salinity range for growth was 10-100 g sea salt l(-1) (corresponding to 6.5-65 g NaCl l(-1)) with an optimum at 30 g sea salt l(-1) (20 g NaCl l(-1)). Strain MV1087(T) was heterotrophic, able to ferment proteinaceous substrates, such as brain/heart infusion and gluten, and carbohydrates, such as glucose, xylan and starch. The... |
| Tipo: Text |
Palavras-chave: Thermophile; Deep sea vent; Caloranaerobacter azorensis; Caloranaerobacter; Bacteria. |
| Ano: 2001 |
URL: http://archimer.ifremer.fr/doc/2001/publication-586.pdf |
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| Gourmelon, Michele; Caprais, Marie-paule; Mieszkin, Sophie; Marti, Romain; Wery, Nathalie; Jarde, E.; Derrien, Marc; Jadas-hecart, A.; Communal, P. Y.; Jaffrezic, A.; Pourcher, A. M.. |
| The microbiological quality of coastal or river waters can be affected by faecal pollution from human or animal sources. An efficient MST (Microbial Source Tracking) toolbox consisting of several host-specific markers would therefore be valuable for identifying the origin of the faecal pollution in the environment and thus for effective resource management and remediation. In this multidisciplinary study, after having tested some MST markers on faecal samples, we compared a selection of 17 parameters corresponding to chemical (steroid ratios, caffeine, and synthetic compounds), bacterial (host-specific Bacteroidales, Lactobacillus amylovorus and Bifidobacterium adolescentis) and viral (genotypes I-IV of F-specific bacteriophages, FRNAPH) markers on... |
| Tipo: Text |
Palavras-chave: Microbial source tracking; Faecal pollution; Bacteroidales; Bifidobacterium adolescentis; Lactobacillus; FRNA bacteriophages; Steroids; Caffeine. |
| Ano: 2010 |
URL: http://archimer.ifremer.fr/doc/00016/12710/9690.pdf |
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| Wery, Nathalie; Lesongeur, Francoise; Pignet, Patricia; Derennes, Veronique; Cambon-bonavita, Marie-anne; Godfroy, Anne; Barbier, Georges. |
| A thermophilic, anaerobic, chemo-organotrophic sulfur-reducing bacterium, designated MV1075(T), was isolated from a deep-sea hydrothermal chimney sample collected on the Mid-Atlantic Ridge. Cells were rod-shaped with a sheath-like outer structure, motile with polar flagella and stained Gramnegative. They appeared singly, in pairs or in short chains. The temperature range for growth was 25-65 degreesC, with an optimum at 55 degreesC. Growth was observed from ph 5 to ph 9, and the optimum ph was around 7. The salinity range for growth was 15-70 g sea salt I-1 (corresponding to 10-45 g NaCl I-1), with an optimum at 30 g I-1 (20 g NaCl I-1). The isolate was able to grow on a broad spectrum of carbohydrates or complex proteinaceous substrates. Sulfur was not... |
| Tipo: Text |
Palavras-chave: Marinitoga camini; Thermotogales; Thermophile; Deep sea hydrothermal vent. |
| Ano: 2001 |
URL: http://archimer.ifremer.fr/doc/2001/publication-587.pdf |
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