pathogen modulation of host immune system process phenotype host PAMP-triggered immunity activated by pathogen present 2021-04-21T11:59:25Z A phenotype where the process of pathogen-associated molecular pattern (PAMPs) or microbe-associated molecular pattern (MAMPs), activate the host PAMP-triggered immunity (PTI) innate immune system to trigger host defense responses such as reactive oxygen species (ROS) and callose deposition is present. (PAMPs and MAMPs are conserved structures among microbial species, eg chitin and lipopolysaccharide (LPS)). alaynecuzick pathogen_host_interaction_phenotype host MAMP-triggered immunity activated by pathogen present host PTI activated by pathogen present