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Content Tagged "metagenomics"

From Life at the Extremes to Editing Genomes

Jennifer Doudna and Emmanuelle Charpentier were recognized for their work on CRISPR-Cas9, technology described by the Nobel Foundation as having “a revolutionary impact on the life sciences.” For the past few years, Doudna’s lab has partnered with JGI’s Microbiome Data Science group led by Nikos Kyrpides, mining the IMG/M system for novel Cas genes and CRISPR systems. [Read More]

New tool helps find gene markers in microorganisms

Researchers have devised a novel method to exploit relationships between bacteria and archaea for a new set of gene markers The Science The researchers developed a new way to identify gene markers in bacteria and the primitive microorganisms classified in the kingdom known as Archaea. Dubbed, PhyEco (for phylogenetic and phylogenetic ecology) this strategy can… [Read More]

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]

Leaf-cutter ants project in Milwaukee Journal Sentinel

“These bacteria and these fungi have evolved for millions of years to deconstruct plant biomass,” said Frank Aylward, a graduate student at the University of Wisconsin-Madison who studies leaf-cutter ants and their fungus gardens. “We should try to learn from them and find out how it occurs in nature.” Read more at JSOnline.com about this… [Read More]

Microbial genomes help propose phylum name

Metagenomicsand single-cell genomics are tools helping researchers learn more about the “biological dark matter” that has not been cultivated and studied in the laboratory. In an article published May 14, 2013 in Nature Communications. [Read More]

Marine metagenome offers clues to ocean nitrogen cycle

Nitrification is the process by which ammonia is converted first into nitrites and then into nitrates, a form of nitrogen that can then be used by plants to grow. However, understanding how the nitrogen cycle works in marine environments is equally crucial. Until 1977, scientists believed that ammonium could only be oxidized by aerobic bacteria…. [Read More]

Bacterial sequence to help understand ant fungal gardens

Leaf-cutter ant colonies are comprised of millions of ants harvesting hundreds of kilos of leaves annually for use in growing their primary food source, a fungus. The fungal gardens tended by these ants allow them to convert plant biomass on a very large scale. Bioenergy researchers are looking at the microbial composition of the fungal… [Read More]