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Content Tagged "marine"

Targeted metagenomics approach pins down role of “wild” alga

Marine microbes play key roles in cycling carbon between the atmosphere and the ocean depths, but little is known about their populations throughout the waters. As global temperatures change, so do these populations, which in turn impacts their contributions to the carbon cycle. Researchers want to learn more about these effects, but one of the… [Read More]

Protein studies offer clues on how palm worms can take the heat

Hydrothermal vents behave like geysers at a national park, except that they erupt deep underwater in the Pacific and Atlantic Oceans. Though the water that shoots out of these vents can reach temperatures as high as 300°C (572°F), many animals and other organisms thrive in the surrounding area.  Two such extremophiles  are “palm worms,” named… [Read More]

Another Brown Mercury Producer Genome Sequenced

In the August edition of The Journal of Bacteriology, a group of scientists including several DOE JGI researchers and longtime collaborator Judy Wall of the University of Missouri described the genome for Desulfovibrio africanus, a sulfate-reducing bacterium isolated from Namibia that doesn’t require oxygen for its survival. Like the Desulfovibrio species sequenced as recently as… [Read More]

Methylmercury-producing bacterium in Shorelines

A newly decoded bacterial genome brings scientists one step closer to unlocking the secret behind the production of methylmercury, the chemical notorious for contaminating tuna and other seafood. Most mercury pollution comes from the burning of fossil fuels. Once in the atmosphere, it seeps into the rain and gradually trickles down to the sea. Certain… [Read More]

Methylmercury-producing bacterium in Smithsonian Science

The new genome, sequenced at the California-based DOE Joint Genome Institute, and completed at Oak Ridge National Laboratory, was published in the Journal of Bacteriology. It lays the foundation for future research to examine the little understood mechanisms behind the production of methylmercury. “We know a little about the bacteria that produce methylmercury but we… [Read More]

Dead zone metagenome study on the CBC

Canadian and U.S. researchers have mapped the genome of a microbe that lives in ocean “dead zones,” areas of low-oxygen water that are expanding because of climate change. Researchers at the University of British Columbia and the U.S. Department of Energy say the microbe, called SUP05, is the most abundant organism in these oxygen-minimum zones… [Read More]

OMZ metagenomic study on redOrbit

In the Oct. 23 issue of the journal Science, researchers from the University of British Columbia and the U.S. Department of Energy Joint Genome Institute (DOE JGI) describe the metagenome of an abundant but uncultivated microbe, known as SUP05, that is silently helping to shape the ecology of [oxygen minimum zones] worldwide. Researchers studied the… [Read More]

Microbial genomics model on GenomeWeb

Scientists have come up with a way to determine whether marine microbes are specialized to grow in nutrient-rich or -poor environments based on their genomic content, according to a feature article scheduled to appear online this week in the Proceedings of the National Academy of Science. An international research team sequenced and compared the genomes… [Read More]

Genomic model research on Xinhua

Sampling just a few genes can reveal not only the “lifestyle” of marine microbes but of their entire environments, new research suggests. The finding means researchers may be able to predict the types of microbes that thrive in specific marine environments by sampling the genomes of just a few dominant species, according to research co-author… [Read More]

Re UQ/JGI’s sea sponge genome sequencing collaboration

[N]one of the projects investigating those potential benefits would be possible without the entire sea sponge genome sequence, which Professor Degnan’s lab successfully mapped and will be publishing this year. “We and our colleagues at the Joint Genome Institute (US Department of Energy) are the ones who drove this project which really puts us in… [Read More]