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Nature 449, 388 (27 September 2007) | doi:10.1038/449388a; Published online 26 September 2007

Bacteria may be wiring up the soil

Philip Ball

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Microbes charge debate over nano networks.

Bacteria can sprout webs of electrical wiring that transform the soil into a geological battery, a team of researchers claims. Some soil bacteria form networks of tiny wires linking individual bacterial cells into a web-like electrical circuit, they report (D.