Nature has done a pretty great job of making flowers colorful and lovely to look at. Have you ever thought, that they might look even better when they change color? That's what plant biotech firm Revolution Biotechnology (RevBio) thought, so it has modified plants to do exactly that through the consumption of beer.
There's a fun and simple experiment in which you can put some white flowers in water containing food coloring, and watch the petals change color as they absorb the water. The RevBio method is a little more advanced than that, but white petals are still a good starting point.
Flowers that are brightly colored produce small molecules called anthocyanins that can be red, blue, or other colors. In flowers that are white, an enzyme is often not functioning and the molecules can't be produced.
According to RevBio, if you know which enzyme is not working, the process can be fixed and the flower can gain color. The company has modified a petunia to do just this when a certain molecule is present. When watered with a diluted ethanol, such as beer, the plant turns from white to red in 24 hours. The change can then be reversed by using regular water.
So don't forget to get wasted with your flowers.
Make sure they are not missing out on the action!