Professor Jane Medford and her team developed plants that will turn white when exposed to explosives and environmental pollutants. Professor June and one of her team stand beside plants they have taught to change colour when in the presence of explosives
How it works:
The receptor proteins in plant DNA respond to threatening stimuli by releasing chemicals to thicken the leaf cuticle, changing its colour. Scientists manipulated this to respond to explosive chemicals.
The following picture is at an airport. A terrorist rolls through the sliding doors of a terminal with a bomb packed into his luggage (or his underwear). All of a sudden, the leafy, verdant gardenscape ringing the gates goes white as a sheet. That’s the proteins inside the plants telling authorities that they’ve picked up the chemical trace of the guy’s arsenal.