How does an intestinal microbe become a pathogen?

The bacterium Escherichia coli is found in the human intestine, and elsewhere. There it is harmless, but in certain conditions it can become a pathogen. It can cause bladder infections or even sepsis. A team of researchers ...

Study uncovers mystery of the invasive common reed

They grow up to 12–15 feet tall and are causing havoc in the wetlands of North America. Known as Phragmites australis, the non-native common reed is one of the most important and most studied plants in the world.

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