A protein ensures that plants flower at the correct moment
How does a plant know when to flower - science news - biology

Correct timing for flowering is extremely important for pollination and reproduction of plants. But, how does a plant know when it is the best moment to produce flowers? A component of the sunlight, called the UV-B radiation (the one that gives us sunburns), is responsible for inducing flowering. However, UV-B can be present before the correct timing, so to prevent premature flowering, plants rely on a protein called RUP2. The protein inhibits flowers from emerging, but when the day get longer and more light is available, the RUP2 becomes less effective and flowering occurs.

Read the full story: University of Geneva
Scientific publication: Genes & Development