Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados ArchiMer (3) Autor Bessette, Sandrine (2) Godfroy, Anne (2) Lesongeur, Francoise (2) Bollinger, Claire (1) Callac, Nolwenn (1) Ferrant, Anthony (1) Gautey, Sebastien (1) Liorzou, Celine (1) Moalic, Yann (1) Rommevaux-jestin, Celine (1) Rouxel, Olivier (1) Toffin, Laurent (1) Mais... Palavra-chave Organic-rich sediment (3) Methane seeps (2) Aerobic methane oxidizing bacteria (1) Aerobic methane-oxidizing bacteria (1) Bactéries méthanotrophes aérobies (1) Basalt alteration (1) Colonization module (1) Communautés microbiennes (1) Congo deep-sea fan (1) Congo turbiditic system (1) Guaymas basin (1) Hydrothermal systems (1) Microbial communities (1) PmoA (1) Suintements de méthane (1) Système turbiditique du Congo (1) Sédiment riche en matière organique (1) Mais... Tipo do documento Text (3) Ano 2017 (1) 2016 (1) 2013 (1) País France (3) Idioma Inglês (2) Francês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Identification des communautés microbiennes des lobes terminaux du système turbiditique du Congo ArchiMer Bessette, Sandrine. The Congo deep sea fan, located in the Congo-Angola continental margin (West African coast, Equatorial South Atlantic Ocean) represents a unique deep-sea sedimentary ecosystem. It is characterized by high organic matter inputs from the Congo River, that flow along a canyon and through presently active channel system-lifted into the deeper areas (5 000 m) where the lobes system develops.The aim of this thesis is to study the spatial distribution as well as the phylogenetic and functional diversity of archaeal and bacterial communities in relation with environmental characteristics and constraints of the terminal lobes of the Congo deep see fan, one of the largest submarine fan systems in the world.This study highlights geographical distribution of microbial... Tipo: Text Palavras-chave: Système turbiditique du Congo; Sédiment riche en matière organique; Communautés microbiennes; Bactéries méthanotrophes aérobies; Suintements de méthane; Methane seeps; Congo turbiditic system; Organic-rich sediment; Microbial communities; Aerobic methane oxidizing bacteria. Ano: 2016 URL: https://archimer.ifremer.fr/doc/00498/60929/64323.pdf Microbial colonization of basaltic glasses in hydrothermal organic-rich sediments at Guaymas Basin ArchiMer Callac, Nolwenn; Rommevaux-jestin, Celine; Rouxel, Olivier; Lesongeur, Francoise; Liorzou, Celine; Bollinger, Claire; Ferrant, Anthony; Godfroy, Anne. Oceanic basalts host diverse microbial communities with various metabolisms involved in C, N, S, and Fe biogeochemical cycles which may contribute to mineral and glass alteration processes at, and below the seafloor. In order to study the microbial colonization on basaltic glasses and their potential biotic/abiotic weathering products, two colonization modules called AISICS ("Autonomous in situ Instrumented Colonization System") were deployed in hydrothermal deep-sea sediments at the Guaymas Basin for 8 days and 22 days. Each AISICS module contained 18 colonizers (including sterile controls) filled with basaltic glasses of contrasting composition. Chemical analyses of ambient fluids sampled through the colonizers showed a greater contribution of... Tipo: Text Palavras-chave: Colonization module; Basalt alteration; Guaymas basin; Organic-rich sediment; Hydrothermal systems. Ano: 2013 URL: http://archimer.ifremer.fr/doc/00181/29261/27642.pdf Relative abundance and diversity of bacterial methanotrophs at the oxic-anoxic interface of the Congo deep-sea fan ArchiMer Bessette, Sandrine; Moalic, Yann; Gautey, Sebastien; Lesongeur, Francoise; Godfroy, Anne; Toffin, Laurent. Sitting at ~5 000 m water depth on the Congo-Angola margin and ~ 760 km offshore of the West African coast, the recent lobe complex of the Congo deep-sea fan receives large amounts of fluvial sediments (3-5% organic carbon). This organic-rich sedimentation area harbors habitats with chemosynthetic communities similar to those of cold seeps. In this study, we investigated relative abundance, diversity and distribution of aerobic methane-oxidizing bacteria (MOB) communities at the oxic-anoxic interface of sedimentary habitats by using fluorescence in situ hybridization and comparative sequence analysis of particulate mono-oxygenase (pmoA) genes. Our findings revealed that sedimentary habitats of the recent lobe complex hosted type I and type II MOB cells and... Tipo: Text Palavras-chave: Aerobic methane-oxidizing bacteria; PmoA; Organic-rich sediment; Methane seeps; Congo deep-sea fan. Ano: 2017 URL: https://archimer.ifremer.fr/doc/00382/49327/49706.pdf Registros recuperados: 3 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco