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Content Tagged "carbon cycle"

Subsurface Sediment Yields Novel Organism

Metagenomic analysis emphasizes the “extraordinary microbial novelty” of poorly-explored subsurface ecosystems The Science Through metagenomics, researchers reconstructed a dominant organism and member of a new phylum-level lineage from an aquifer sediment in Colorado. The Impact Analysis of the complete microbial genome led to a detailed metabolic model with evidence for multiple new enzymes and pathways…. [Read More]

Solving the Secrets of Sedimentary Microbes

Microbes from Phylum Chloroflexi Provide Clues to Carbon Cycling, Respiration in Sediments The Science Through metagenomics, researchers sequenced 86 organisms from the phylum Chloroflexi that represent 15 distinct lineages in order to discover the secrets of microbial life within terrestrial aquifer sediment deposits. The Impact These Chloroflexi microbes were found to have metabolic processes involved… [Read More]

Genome Streamlining a Survival Strategy in Marine Microbes

The ocean’s surface or photic zone, where sufficient light enables photosynthesis, harbors vast amounts of life-sustaining microbes that attach themselves to plankton. A large portion of the carbon in the ocean is processed by these microbes, which helps sustain the abundance of diverse marine life. But these microbes can be exceedingly difficult to culture in… [Read More]

Ehux – The Alga of Many Faces

Known by the researchers who sequenced it at the Department of Energy Joint Genome Institute as “The Beast”, and considered the “Flowers of the Ocean” by others, Emiliania huxleyi has proved to be a single-celled coccolithophore of many faces. The third most abundant group of phytoplankton, Ehux is the basis of most ocean food chains,… [Read More]

Ehux pangenome project in San Diego Union-Tribune

The algae are the third most abundant phytoplankton, and are a key component of the ocean food chain, nourishing animals including crustaceans, shellfish and other filter feeders.They’re characterized by their intricate shells, composed of interwoven lattices of calcium carbonate.“We kind of think of them as flowers of the ocean,” Read said. Read the full story… [Read More]

Ehux pangenome project in redOrbit

 “The Ehux genome is incredibly variable,” said study co-author Dr. Uwe John and biologist with the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI). “For example, if the genetic information of two humans is compared, an agreement of about 99 per cent is found. However, if, for example, we take two Ehux strains from… [Read More]

Metagenomic study of methane in marine microbial communities

Methane is one of the most potent greenhouse gases and previous studies suggested that it is removed from the atmosphere through aerobic and anaerobic processes with the help of bacteria and archaea. Recent evidence suggests, however, that methane can be removed through other pathways involving as-yet unidentified microbes. To learn more about these pathways and… [Read More]

A photosynthetic pathway for mats under anoxic conditions

Many microbes are unculturablebecause they do not thrive when extracted from their habitats. Studies conducted within the context of a group allows researchers to see the interactions taking place and use the clues provided to identify the individual roles of the microorganisms. Photosynthetic microbial mats fix carbon in the day, but it turns out that… [Read More]