Consulta: creatorFacets:"Marty, D"
Registros recuperados: 3
Data/hora: 17/06/2024 16:51:34

Dénitrification, sulfato-réduction et méthanogenèse dans les sédiments superficiels d'un étang saumâtre méditerranéen
Provedor de dados: 5
Autores: Marty, D; Esnault, G; Caumette, P; Ranaivoson-rambeloarisoa, E; Bertrand, Jc.
Tipo: Text
Ano: 1990
URL: http://archimer.ifremer.fr/doc/00131/24239/22232.pdf

Interrelations entre des communautes mixtes de bacteries anaerobies isolees de sediments marins
Provedor de dados: 5
Autores: Marty, D.
The mineralization of cellulose was examined in mono and cocultures of marine anaerobic bacteria (cellulolytic bacteria, fermentative non-cellulolytic bacteria and methane-producing bacteria). These studies displayed interactions between these groups of microorganisms: inhibition relationships (inhibition of methanogens during active growth of fermentative bacteria) and syntrophic relationships (growth of fermentative non-cellulolytic bacteria depended on metabolites produced by cellulolytic bacteria; increased in rate of cellulose hydrolysis in presence of fermentative non-cellulolytic bacteria; interspecies H sub(2) transfer reaction between fermentative bacteria and methane-producing bacteria).
Tipo: Text
Palavras-chave: Biogeochemistry; Sedimentation; Sediments; Fermentation; Mineralization; Cellulose; Methanogenesis; Interspecific relationships; Anaerobic bacteria.
Ano: 1984
URL: http://archimer.ifremer.fr/doc/1984/acte-948.pdf

Methanoarchaea associated with sinking particles and zooplankton collected in the Northeastern tropical Atlantic
Provedor de dados: 5
Autores: Marty, D; Nival, P; Yoon, Wd.
During the ''Eumeli-4'' cruise in the northeastern tropical Atlantic Ocean, the occurrence and activity of methanoarchaea in the water column were examined, whether in association with sinking particulate material collected by means of sediment traps and in situ pumps, or with zooplankton organisms harvested with plankton nets and their freshly egested fecal pellets. Besides highlighting the necessity to use adequate particle samplers, the results confirm the presence of Viable pelagic methanogens in particulates; likely to be present in zooplankton, in the form of enteric flora, these archaea would be released in the sea water column within egested fecal pellets.
Tipo: Text
Ano: 1997
URL: http://archimer.ifremer.fr/doc/00093/20449/18121.pdf