A phylogenetic analysis of microbial communities associated with methane hydrate containing marine fluids and sediments in the Cascadia margin (ODP site 892B)

Abstract Methane hydrates represent an enormous carbon and energy source in many low temperature deep marine sediments. However, little information is available concerning the nature of the microbial communities associated with these structures. Here, we describe a phylogenetic analysis based on rib...

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Veröffentlicht in:	FEMS microbiology letters 1999-08, Vol.177 (1), p.101-108
Hauptverfasser:	Bidle, Kelly A., Kastner, Miriam, Bartlett, Douglas H.
Format:	Artikel
Sprache:	eng
Schlagworte:	Animal, plant and microbial ecology Archaea - classification Archaea - genetics Archaea - isolation & purification Bacteria - classification Bacteria - genetics Bacteria - isolation & purification Biological and medical sciences California Communities Crenarchaeota Desulfovibrio DNA, Ribosomal - genetics Drilling Energy sources Fundamental and applied biological sciences. Psychology Gas hydrate Gas hydrates Gene sequencing Hydrates Low temperature Marine sediments Methane Methane - analysis methane hydrate Methane hydrates Methanogenic bacteria Methanotrophic bacteria Microbial activity Microbial ecology Microbiology Microbiomes Microorganisms Nucleotide sequence Phylogenetics Phylogeny rDNA sequencing Ribosomal DNA RNA, Ribosomal, 16S - genetics Seawater - analysis Seawater - microbiology Sediments Soil - analysis Soil Microbiology Space life sciences Sulfate reducer Sulfur Various environments (extraatmospheric space, air, water)
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Zusammenfassung:	Abstract Methane hydrates represent an enormous carbon and energy source in many low temperature deep marine sediments. However, little information is available concerning the nature of the microbial communities associated with these structures. Here, we describe a phylogenetic analysis based on ribosomal DNA (rDNA) sequences obtained from sediment and fluid samples present in a region of gas hydrate formation in shallow sediments within the Cascadia margin in and around Ocean Drilling Program (ODP) Site 892B. Our studies detected diverse sulfur-utilizing microbes, methanogens, methanotrophs, and non-thermophilic members of the kingdom Crenarchaeota. This is the first culture-independent phylogenetic analysis of a gas hydrate habitat.
ISSN:	0378-1097 1574-6968
DOI:	10.1111/j.1574-6968.1999.tb13719.x