Responses to Pathogens (HSC SSCE Biology): Flashcards

Sophisticated, multi-layered defence system

Passive (pre-existing) and active (induced)

Waxy, water-repellent outer coating on leaves and stems

Small pores for gas exchange; potential pathogen entry points

Pathogen-associated molecular patterns detected by receptors

Hydrogen peroxide ($\text{H}_2\text{O}_2$)

Kills cells around infection to isolate pathogen

Rapid structural reinforcement at infection sites

Plant immunological memory for faster future responses

Salicylic acid