Plants make secret decisions' that break biochemistry rules.

Researchers have uncovered a technique that explains plants"secret choices' when releasing carbon into the environment.

University of Western Australia plant scientist Harvey Millar told ScienceAlert that plants regulate how much carbon from photosynthesis

"They do this before burning pyruvate to release CO2 into the environment."

During photosynthesis, plants generate sugar or sucrose.

A plant's excess sucrose is stored and decomposed. The citric acid (or tricarboxylic acid) cycle is vital to life.

This cycle breaks down 12-carbon sucrose into 6-carbon glucose.

The Watermelon Yellow Spot