Term	Definition
MAMP	Microbe-associated molecular patterns are compounds derived from molecules required for microbial survival. MAMPs do not actively promote infection, examples include chitin oligomers from fungi and flagellin peptides from bacteria.
DAMP	Damage-associated molecular patterns are plant molecules that are released by cellular damage resulting from pathogen infection.
Phytocytokine	Plant peptides produced in the cytosol and secreted into the apoplast to stimulate plant immunity.
Effector	A secreted molecule, typically a small protein, that functions to promote infection.