Pieris brassicae (IMAGE) Max Planck Institute for Chemical Ecology Caption The caterpillar of the cabbage white butterfly (Pieris brassicae) has two gut enzymes to target and disarm the major defense mechanism of cruciferous plants, the mustard oil bomb. Depending on the toxin defense composition of their host plants, larvae can flexibly utilize these two detoxification enzymes. Credit Yu Okamura 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.