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Fetch, Boy! Study Shows Homes with Dogs Have More Types of Bacteria

New research from North Carolina State University and the University of Colorado shows that households with dogs are home to more types of bacteria – including bacteria that are rarely found in households that do not have dogs. The finding is part of a larger study to improve our understanding of the microscopic life forms that live in our homes.

“We wanted to know what variables influence the microbial ecosystems in our homes, and the biggest difference we’ve found so far is whether you own a dog,” says Dr. Rob Dunn, an associate professor of biology at NC State and co-author of a paper describing the work. “We can tell whether you own a dog based on the bacteria we find on your television screen or pillow case. For example, there are bacteria normally found in soil that are 700 times more common in dog-owning households than in those without dogs.” (more…)

It Takes a Community of Soil Microbes to Protect Plants From Disease

By Guest PostMay 15, 2011Environment, Scienceactinobacteria, archaea, bacteria, berkeley lab, burkholderia, complex microbial network, coral reefs, deepwater horizon spill, disease, dna sequences, dutch scientists, environmental mysteries, gary andersen, gulf of mexico, immune system, mammals, pathogens, phylochip, plants, potato, psuedomonas, puerto rico, rathmann family foundation, rhizoctonia solani, rice, root fungus, soil, soil microbes, sugar beet, todd desantis, types of bacteria, vegetables, xanthomonas, yvette piceno

*Berkeley Lab scientists decipher immune system for plants beneath our feet*

Those vegetables you had for dinner may have once been protected by an immune system akin to the one that helps you fight disease. Scientists from the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) and the Netherland’s Wageningen University found that plants rely on a complex community of soil microbes to defend themselves against pathogens, much the way mammals harbor a raft of microbes to avoid infections.

The scientists deciphered, for the first time, the group of microbes that enables a patch of soil to suppress a plant-killing pathogen. Previous research on the phenomenon of disease-suppressive soil had identified one or two pathogen-fighting microbes at work. (more…)

Tag Archives: types of bacteria

Fetch, Boy! Study Shows Homes with Dogs Have More Types of Bacteria

It Takes a Community of Soil Microbes to Protect Plants From Disease