In spring, the protein VRN2 breaks down, allowing another protein, PRC2, to initiate flowering
How memory of flowering plants works - life short science news

Plants can sense and remember changes in their environment through the formation and segregation of a protein complex.

Now, scientists have discovered that one protein in this complex, a protein called VRN2, is extremely unstable, and breaks down when temperatures are high and oxygen is plentiful. It becomes stable when temperatures and oxygen are low, for instance when the winter sets in or during flooding. When VRN2 is broken down when spring arrives, another protein PRC2 becomes available to trigger flowering.

These proteins might be new targets that could support the development of new plant varieties that are resistant to environmental changes, researchers say.

Read the full story: University of Birmingham
Scientific publication: Nature Communications

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