Herbivores dine on toxic plants, thanks to gut microbes

July 21, 2014 2:14 PM

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Woodrats lost their ability to eat toxic creosote bushes after antibiotics killed their gut microbes. Woodrats that never ate the plants were able to do so after receiving fecal transplants with microbes from creosote-eaters, University of Utah biologists found.

The new study confirms what biologists long have suspected: bacteria in the gut – and not just liver enzymes – are “crucial in allowing herbivores to feed on toxic plants,” says biologist Kevin Kohl, a postdoctoral researcher and first author of the paper published online today in the journal Ecolog...

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