Consulta: subjectFacets:"RubisCO"
Registros recuperados: 2
Data/hora: 02/06/2024 07:30:04

Symbioses bactériennes de bivalves mytilidés associés aux sources de fluides en domaine océanique profond : diversité, rôle nutritionnel et influence de l'environnement
Provedor de dados: 5
Autores: Duperron, Sebastien.
Symbiotic associations between chemosynthetic bacteria and invertebrates are one of the major sources of primary production in deep-sea chemosynthesis-based ecosystems. Mussels of the genus Bathymodiolus (Bivalvia: Mytilidae) occur worldwide and can dominate the animal community at methane-rich cold seeps and sulfide-rich hydrothermal vents. Some species are associated with both sulfide-oxidizing and methanotrophic bacteria. These mussels are thus a good model for studying the diversity, role and ecology of multiple symbiotic associations, which are still poorly understood. For the present study, several species of mytilids were collected from seep and vent sites situated at depths from 850 to 3300 meters using submersibles. Symbiotic bacteria associated...
Tipo: Text
Palavras-chave: Mid Atlantic Ridge Eastern Mediterranean Gulf of Guinea Gulf of Mexico Chemosynthesis Hydrothermal vents Cold seeps Lipid analysis Stable isotopes CFB; 16S rRNA; APS; RubisCO; PmoA Methylotrophic bacteria Methanotrophic bacteria Sulfide oxidizing bacteria Idas Bathymodiolus Symbiosis Chimiosynthèse Sources hydrothermales Sources de fluides froids Analyse lipidique Isotopes stables Ride Médio Atlantique Méditerranée orientale Golfe de Guinée Golfe du Mexique CFB; ARNr 16S; APS; RubisCO; PmoA Bactéries méthylotrophes Bactéries méthanotrophes Bactéries sulfoxydantes Idas Bathymodiolus Symbiose.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/these-2082.pdf

A microbiological and biogeochemical investigation of the cold seep tubeworm Escarpia southwardae (Annelida: Siboglinidae): Symbiosis and trace element composition of the tube
Provedor de dados: 5
Autores: Duperron, Sebastien; Gaudron, Sylvie M.; Lemaitre, Nolwenn; Bayon, Germain.
Tubeworms within the annelid family Siboglinidae rely on sulfur-oxidizing autotrophic bacterial symbionts for their nutrition, and are among the dominant metazoans occurring at deep-sea hydrocarbon seeps. Contrary to their relatives from hydrothermal vents, sulfide uptake for symbionts occurs within the anoxic subsurface sediment, in the posterior ‘root’ region of the animal. This study reports on an integrated microbiological and geochemical investigation of the cold seep tubeworm Escarpia southwardae collected at the Regab pockmark (Gulf of Guinea). Our aim was to further constrain the links between the animal and its symbiotic bacteria, and their environment. We show that E. southwardae harbors abundant sulfur-oxidizing bacterial symbionts in its...
Tipo: Text
Palavras-chave: Sulfur-oxidizing bacteria; RTCA; Trace elements; RubisCO; Symbiosis.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00191/30251/28683.pdf