Photorhabdus luminescens (IMAGE) Johannes Gutenberg Universitaet Mainz Caption The secondary cell type of Photorhabdus luminescens protects plants against the pathogenic fungus Fusarium graminearum. The associated bacteria not only safeguard plants but also kill this fungus using enzymes that degrade chitin (right). Without protection, the infected plant will wither and possibly even die (left). Credit ill./©: Nazzareno Dominelli, JGU Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. No derivatives or adaptations of the work are permitted. License CC BY-NC-ND 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.