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Cow rumen metagenome study in Technology Review

The first step in cellulosic biofuels is converting tough plant materials made of cellulose and lignin into sugars that can then be fermented to make fuels. But this is expensive and currently requires a large quantity of enzymes to break down cellulose. “We’re talking truckloads,” says Frances Arnold, a professor of chemical engineering at Caltech… [Read More]

Cow rumen metagenome study on ClimateWire

Scientists hunting for ways to drive down the cost of converting plant waste into fuel may have found some valuable clues in the bellies of cows. Researchers employing high-tech genetic sequencing methods identified dozens of gut-dwelling organisms that help cows break through the protective sheath that guards the sugars inside plants. Some of these enzymes… [Read More]

Cow rumen metagenome study on Medill Reports

Of those, 27,775 show markers for enzymes specific to breaking down cellulose sugars in plants. “One of the neat things,” Hess said, “is that we established a catalog of enzymes that we are interested in, which will be available Friday for anyone to access.” Read more on Medill Reports. [Read More]

Cow rumen metagenome study on TVNZ

Identifying the enzymes that give the tiny bacteria this power could make it easier to turn switchgrass and other plant products into fuel in factories. Ethanol makers will produce about 49 billion litres of the renewable fuel this year, chiefly from corn. A 2007 law requires annual use of 136 billion litres from 2022 and… [Read More]

Cow rumen metagenome study on PlanetArk

To make sure they found the right microbes in action, they used a cow that had a hole surgically opened right into its rumen. The researchers needed to find the bacteria that worked in airless environments like a cow’s insides.Rubin’s team used metagenomics, a gene-sequencing approach that maps the DNA of a community of organisms… [Read More]

Cow rumen metagenome study on ScienceBlog

When it comes to breaking down plant matter and converting it to energy, the cow has it all figured out. Its digestive system allows it to eat more than 150 pounds of plant matter every day. Now researchers report that they have found dozens of previously unknown microbial enzymes in the bovine rumen — the… [Read More]

Cow rumen metagenome study on Bioscience Technology

“Industry is seeking better ways to break down biomass to use as the starting material for a new generation of renewable biofuels,” said JGI Director and project lead Eddy Rubin. “Together with our collaborators, we are examining the molecular machinery used by microbes in the cow to break down plant material.” Read more on Bioscience… [Read More]

Cow rumen metagenome study on Green Car Congress

Researchers have used a metagenomic analysis to discover dozens of previously unknown microbial enzymes in the bovine rumen—the cow’s primary grass-digestion chamber—that contribute to the breakdown of switchgrass, a renewable biofuel energy source. The study, reported in the current issue of the journal Science, tackles a major barrier to the development of more affordable and… [Read More]

Cow rumen metagenome study on FavStocks

In the new study, the researchers focused on switchgrass, a promising biofuels crop. After incubating the switchgrass in the rumen for 72 hours, researchers conducted a genomic analysis of all of the microbes that adhered to switchgrass.This metagenomic approach, led by Edward Rubin, of the DOE Joint Genome Institute and the Lawrence Berkeley National Laboratory,… [Read More]

Cow rumen metagenome study on LabSpaces

Rubin’s postdoctoral fellows Matthias Hess and Alex Sczyrba used one of the most promising large-scale bioenergy crops — switchgrass (Panicum virgatum) – and let the cows’ microbial symbionts located in the foregut perform their magic. Read more on LabSpaces [Read More]