This volume presents a collection of protocols to study effector-triggered immunity (ETI) in both plants and animals from eminent groups in the field. The chapters in this book cover topics such as genetic manipulation of plant and animal pathogens, host cells, and the analysis of key host responses; and techniques used for the analysis of inflammasome activation, cell death pathways, and mitochondria damage in response to pathogens. All of these topics cover a broad spectrum of immunological, biochemical, cell biological, and structural biology approaches to examine ETI. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls.