Glow in the dark petunia!

I remember in the early days of gene tinkering National Geographic reported that researchers inserted a firefly luciferin gene into a tobacco plant to produce glow in the dark tobacco. It may, however, have required a photographic time exposure to make the effect visible.
 
Yep, a few members on here have these now and are growing them! I'm told they are not bright, but with a longer exposure you can capture them in a photo.
 
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