Plant immunity

Plant immunity is the natural defense system that helps plants protect themselves from harmful pathogens like bacteria, fungi, and viruses. When a plant detects these invaders, it activates a series of responses to contain and eliminate the threat. This includes producing toxins, strengthening cell walls, and signaling other immune responses. Some plants also "remember" previous infections, enabling faster responses to future attacks. Unlike animals, plants lack mobile immune cells but rely on these internal defense mechanisms. Overall, plant immunity is a complex, adaptive system essential for plant health and survival.