Carbon Metabolism

During the second stage in photosynthesis, known as the Calvin Cycle, carbon is converted into glucose. This glucose is then used to synthesize the carbohydrates, proteins, lipids and many other compounds used in the construction and maintenance of the plant.  

The Calvin cycle consists of many steps, each catalyzed by a different enzyme. Computer modeling and experimental measurements suggest that investment of resources between the enzymes of the cycle is not optimized for maximum photosynthetic productivity.  RIPE is increasing and decreasing the gene expression of several enzymes within the leaf to achieve an optimized photosynthetic system. 

Kenny Brown
Amanda P. De Souza
Headshot of Sarah Hutchinson
Wanne Kromdijk
Tracy Lawson
Yu Wang
Researchers stand in field trials.

Scientists boost crop production by 47 percent by speeding up photorespiration

RIPE has increased crop production 27 to 47 percent by speeding up a process called photorespiration.


Liana Acevedo-Siaca: Utilizing rice to achieve food security

Acevedo-Siaca named U.S. Borlaug Fellow in Global Food Security at International Rice Research Institute.

Steve Long

Team Models Photosynthesis and Finds Room for Improvement

Teaching crop plants to concentrate carbon dioxide in their leaves could increase photosynthetic efficiency by 60 percent.