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This is Scientific American's 60-second science.

I'm Christopher in Taliatta.

Humans can spread disease by sneezing, but less well known is the wheat plant's ability to do something strangely similar from its leaves.

It's basically analogous to a human sneeze in terms of you have this very fast and sudden expulsion of droplets that contain the disease

or pathogen inside of it, and they kind of get like thrown away from the surface.

Jonathan Barrico, a mechanical engineer at Virginia Tech. He and his team were studying the

ability of wheat plants to expel spores of a common pathogen, the wheat rust fungus from their leaves, via this unusual mechanism. So they inoculated wheat plants to expel spores of a common pathogen, the wheat rust fungus from their leaves,

via this unusual mechanism. So they inoculated wheat plants with the disease, created dew on the

plant's leaves, and then studied the ensuing action with high-speed microscopy. Here's what they

saw. The leaves are extremely hydrophobic, meaning water beads up to minimize contact with the surface.

And when two or more drops touch, energy gets released in the form of a catapulting action,

which sneezes the droplets into the air several millimeters above the leaf surface.

The droplets can then be picked up by light breezes, or simply fall, and spread to other plants.

The process is surprisingly effective at launching spores.

The researchers figure each leaf can launch 100 spores per hour during a morning dew.

The results and photos of the jumping drops are in the journal of the Royal Society interface.

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