CAT and infection: For instance, it has been found that the suppression of GA3 signalling is a general response to abiotic stress in A. thaliana [71]; in tobacco, GA3 signaling pathway could regulate ROS scavenge enzyme, such as SOD, peroxidase (POD) and catalase (CAT) to enhance the susceptibility of pathogen infection by overexpressing GhMPK11 [72].