A general review of the sub-seafloor biosphere is presented. This includes an update and
assessment of prokaryotic cell distributions within marine sediments, current deepest 1922 …

Microorganisms are found throughout every corner of nature, and vast number of
microorganisms is difficult to cultivate by classical microbiological techniques. The advent of …

Microbial life inhabits deeply buried marine sediments, but the extent of this vast ecosystem
remains poorly constrained. Here we provide evidence for the existence of microbial …

Extracellular enzymes produced by heterotrophic microbial communities are major drivers of
carbon and nutrient cycling in terrestrial, freshwater, and marine environments. Although …

Over billions of years, the ocean has been regarded as the origin of life on Earth. The ocean
includes the largest range of habitats, hosting the most life-forms. Competition amongst …

Metagenomic based strategies have previously been successfully employed as powerful
tools to isolate and identify enzymes with novel biocatalytic activities from the unculturable …

In the present study, hybrid tilapias (Oreochromis niloticus♀× O. aureus♂) were fed six
isonitrogenous and isoenergetic experimental diets in cages. The diets contained six levels …

Detection and enumeration of microbial life in natural environments provide fundamental
information about the extent of the biosphere on Earth. However, it has long been difficult to …

Microbial methanogenesis in subseafloor sediments is a key process in the carbon cycle on
the Earth. However, the cultivation-dependent evidences have been poorly demonstrated …

Background Subseafloor sediments accumulate large amounts of organic and inorganic
materials that contain a highly diverse microbial ecosystem. The aim of this study was to …