Marianna Boccia (IMAGE) Max Planck Institute for Chemical Ecology Caption Marianna Boccia examines Solanum nigrum plants in the greenhouse. This wild plant, which is related to the potato and tomato, produces different steroidal molecules in different tissues. While steroidal saponins are formed in the leaves, glycoalkaloids are produced in the berries. The GAME15 protein interacts with other enzymes involved in biosynthesis to produce both steroidal saponins and steroidal glycoalkaloids. Credit Anna Schroll Usage Restrictions Credit must be given to the creator. Adaptations must be shared under the same terms. License CC BY-SA Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.