The use of protoplasts to study innate immune responses.
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The use of plant protoplast transient expression system has facilitated the discovery and dissection of many signal transduction pathways in response to hormones, metabolites, and stresses. Recently, Arabidopsis protoplasts also have been used successfully to study plant innate immune responses triggered by pathogen-derived elicitors. Here, we describe the detailed protocols for studying innate immune responses, including cell death and early defense gene regulation activated by two types of elicitors, pathogen-associated molecular patterns and bacterial type III effectors in Arabidopsis protoplasts. This cell-based system simplifies the complex pathogen-plant interactions to pure individual signals and synchronized cell-autonomous responses. The application of this novel approach provides high temporal and spatial resolution to enhance our understanding of the distinct and overlapping signaling events in pathogen-associated molecular pattern- and bacterial type III effector-activated immune responses at the molecular and cellular level.
author list (cited authors)
He, P., Shan, L., & Sheen, J.
complete list of authors
He, Ping||Shan, Libo||Sheen, Jen