JA can respond to pathogen infection or herbivore feeding, thereby activating the expression of defense genes such as pathogenesis-related genes (PRs), LOXs, and vegetative storage proteins (VSPs), and simultaneously regulating the increase in the activities of defense enzymes such as protease inhibitor (PI), polyphenol oxidase (PPO), and catalase (CAT), playing a crucial role in plant growth, development, and defense [31,32]. Here, CAT is linked to infection.