Venus Flytrap Meets Particle Accelerator

Electron Impressions has built a reputation for pushing physics equipment well beyond its intended purpose, and their latest experiment takes things further than most. The team placed a fully grown potted Venus flytrap, open traps and all, directly in the path of a linear accelerator to find out what high speed electron beam radiation actually does to living tissue, and whether the plant’s famous snapping mechanism would have anything to say about it.

Charles Darwin had a particular fondness for the Venus flytrap, calling it one of the most fascinating plants in existence, and it is easy to see why. Under normal circumstances the trap snaps shut when a tiny hair on the inner surface of the leaf is touched twice in quick succession. That contact sends a signal rippling through the leaf cells, triggering a rapid exchange of calcium, potassium, and chloride ions followed by a rush of water that slams the lobes shut in an instant. The signal can also spread across the entire plant, meaning a single trigger hair being touched can set off every trap at once.

The team knew going in that high energy electrons do not simply pass through a material cleanly. They knock other electrons out of position along the way, leaving behind a trail of charged particles and highly reactive free radicals capable of damaging DNA and cell components faster than the plant’s natural repair mechanisms can keep up. The question everyone wanted answered was whether that sudden rush of ions and free radicals inside the leaf cells would mimic the natural trigger signal closely enough to snap the traps shut.

The setup required some careful preparation. The potted flytrap was positioned directly in front of a radiation shielded camera while the accelerator stood ready to fire a controlled burst of electrons moving at close to the speed of light. The camera and controls sat safely behind heavy shielding, well out of harm’s way. The flytrap had no such luxury.

When it came down to it, the electron beam turned on in an instant, as the effects were obvious. Every open trap on the visible side of the flytrap slammed shut at the same time, with no slow motion or one trap starting before the others as if every single trigger hair on the flytrap had been touched at the same time. The video recording captured it all in fine detail, with the leaves standing open and poised to grab an unsuspecting bug before folding close in the space of a single heartbeat.

After the beam came to a halt, the plant simply remained there, with no sign of its traps opening up again. Traps that would ordinarily reopen in a few hours or days after being mistakenly closed remained solidly sealed. Over the next few days, the leaves began to wilt, and before weeks, the entire plant had become entirely brown and died. Tissue samples later revealed extensive cell death, indicating that free radicals had gone nuclear on the plant’s DNA, oxidizing it to the point of no return and simply overwhelming the plant’s inherent defenses that normally keep the cells healthy.
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