The activities of polyphenoloxidase (PPO), peroxidase (POD) and phenylalanine ammonia-lyase (PAL) were enhanced near the infected parts on pericarp, but reduced far from them.

• 邻近病斑部位的果皮中PPO、POD和PAL活性较高，而距病斑部位较远的果皮中PPO、POD和PAL活性较低。