(MeJA), on induced plant defenses and protection against herbivores have been well
documented. Previous research on tomatoes has shown that exogenous JA and MeJA can
elevate the activities of defensive enzymes, like polyphenol oxidases (PPOs) and proteinase
inhibitors (PIs), and reduce the performance of herbivores. While such defenses are
believed to depend on the availability of resources for the plant, data on the relationship …