Coexistence of bacterial sulfide oxidizers, sulfate reducers, and spirochetes in a gutless worm (oligochaeta) from the Peru margin

Article Abstract:

Comparative 16S rRNA sequence analysis and fluorescence in situ hybridization (FISH) is used to examine the diversity and phylogeny of symbionts in two geographically separated Olavius crassitunicatus populations from the Peru margin. A phylogenetically diverse symbiont population consisting of five or six co-occurring bacterial phylotypes is discovered, which appear to be highly specific and stable in both host populations.

Phylogeny, Spirochetes, Earthworms

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Diversity and distribution of methanotrophic archaea at cold seeps

Article Abstract:

The diversity and distribution and biomass of methanotrophic archaea are investigated in samples by using 16S rRNA-based methods. The two samples selected are sediments from outcropping methane hydrate at Hydrate Ridge and massive microbial mats enclosing carbonate reefs that show distribution, diversity, and morphology of methanotrophic consortia.

Microbial mats, Methanobacteriaceae, Methanogens

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Diversity and structure of bacterial communities in arctic versus Antarctic pack ice

Article Abstract:

A comprehensive assessment of bacterial diversity and community composition in arctic and antarctic pack ice was conducted through cultivation and cultivation-independent molecular techniques. A terrestrial influence on the arctic pack ice community was suggested by the presence of limnic phylotypes.AC

Antarctica, Arctic, Analysis, Environmental aspects, Bacteria, Tillage, Cultivation (Land)

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