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Cow rumen metagenome study on MSNBC.com

“Cellulosic ethanol” would use non-food plants such as switchgrass, which is one of the most promising bioenergy crops. But, while advances have been made, it’s still not economically viable.The researchers didn’t come up with the magic mix of enzymes that will most efficiently break down switchgrass and other non-food plants. But they — and the… [Read More]

Cow rumen metagenome study in Scientific American

“If the industry is going to move forward, it’s going to need new enzymes,” says Eddy Rubin, the director of the U.S. Department of Energy’s Joint Genome Institute. Rubin and 16 colleagues report in the January 28 issue of Science how they discovered nearly 30,000 new enzyme candidates by analyzing DNA collected from a cow’s… [Read More]

Cow rumen metagenome study on EurekAlert

“Microbes have evolved over millions of years to efficiently degrade recalcitrant biomass,” said Eddy Rubin, Director of the JGI and a lead on this study. “Communities of these organisms can be found in diverse ecosystems, such as in the rumen of cows, the guts of termites, in compost piles, as well as covering the forest… [Read More]

Cow rumen metagenome study in This Week in Science

Identification of additional enzymes that can degrade cellulose efficiently should help in the development of biofuels on an industrial scale. Uncultured microorganisms living in cow rumen are highly effective at degrading plant cell walls. Hess et al. used metagenomics and single-genome sequencing to assemble draft genomes from microbes adhering to rumen-incubated switchgrass to identify nearly… [Read More]

Tammar wallaby foregut microbiome

Australia and New Zealand were separated from other land masses for millennia, and the unique marsupials found there such as kangaroos and wallabies have forestomachs adapted to efficiently break down lignocellulosic plant mass to extract nutrients. Australian marsupials such as the Tammar wallaby (above) contain unique, uncultured bacteria that could be useful in breaking down… [Read More]