Archaeal dominance in the mesopelagic zone of the Pacific Ocean

Article Abstract:

Research is presented concerning the distribution and abundance of pelagic crenarchaeota and bacteria in the Pacific Ocean. The abundance of these microorganisms was found to be in the range of 63-90% of total numbers.

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Genomic perspectives in microbial oceanography

Article Abstract:

The global ocean is an integrated living system where energy and matter transformations are governed by interdependent physical, chemical and biotic processes. A brief history of marine microbiology is presented and some of the results from genomic technology and the challenges to be faced for integrating these new data into the larger fabric of ocean science are provided.

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Methane-consuming archaebacteria in marine sediments

Article Abstract:

Methane is produced in marine sediment but is consume before contact with aerobic waters of the atmosphere. Biogeochemical evidence suggests that the process of methane anaerobic consumption involves electron transfer from methane to sulphate, and may be mediated by several organisms. Sediments related to a decomposing methane hydrate were studied and gave strong evidence that methane is consumed by distinct archaebacteria. Gene surveys indicated the predominance of a new archael group, related to Methanomicrobiales and Methanosarcinales.

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