Why don't plants have phagocytic cells?

Answer 1

Plants do not have phagocytic cells because they rely on different defense mechanisms to protect themselves from pathogens and pests. Instead of using phagocytosis, plants utilize physical barriers like cell walls, as well as chemical defenses such as secondary metabolites and antimicrobial compounds. Additionally, plants have specialized immune responses that involve recognition of pathogen-associated molecular patterns (PAMPs) to initiate defense signaling pathways. This distinct approach reflects their stationary nature and different evolutionary adaptations compared to animals.