KEY RESOURCES TABLE.

REAGENT or RESOURCE	SOURCE	IDENTIFIER
Antibodies
Phospho-p44/42 MAPK	Cell Signaling	CAT# 9101
Bacterial and virus strains
Pseudomonas syringae pv tomato DC3000	Xinnian Dong, Duke University (MK lab stock #1334)	N/A
Pseudomonas fluorescens Migula	ATCC (MK lab stock #1335)	CAT# 13535
Pseudomonas aeruginosa S470	Meta J. Kuehn, DUMC Clinical Isolate (MK lab stock #222)	N/A
Enterotoxigenic Escherichia coli H10407	ATCC (MK lab stock #378)	CAT# 35401
Staphylococcus aureus Newman	Ken Yokoyama, Duke University (MK lab stock #1336)	N/A
Hyaloperonospora arabidopsidis NOCO2	Xinnian Dong, Duke University	N/A
Phytophthora infestans NC14–1 (Clonal Lineage US-23)	Jean B. Ristaino, North Carolina State University	N/A
Chemicals, peptides, and recombinant proteins
Bradford Reagent	VWR	CAT# 97065–010
FM4–64	Thermo Fisher/ Invitrogen	CAT# T13320
OptiPrep Density Gradient Medium	Sigma	CAT# D1556
Sytox Green	Thermo Fisher/ Invitrogen	CAT# S7020
SuperSignal West Dura substrate	Thermo Fisher	CAT# 34075
Experimental models: organisms/strains
Arabidopsis thaliana ecotype Columbia-0 (Col-0)	Xinnian Dong, Duke University	N/A
Arabidopsis thaliana ICS1-LUC	Xinnian Dong, Duke University (Tedman-Jones et al., 2008)	N/A
Arabidopsis thaliana dde2–2/ein2–1/pad4–1/sid2–2 (DEPS)	ABRC	Stock# CS66007
Arabidopsis thaliana dde2–2/ein2–1/pad4–1 (DEP)	ABRC	Stock# CS66004
Arabidopsis thaliana dde2–2/pad4–1/sid2–2 (DPS)	ABRC	Stock# CS66005
Arabidopsis thaliana ein2–1/pad4–1/sid2–2 (EPS)	ABRC	Stock# CS66006
Solanum lycopersicum cv Mountain Fresh Plus	Jean B. Ristaino, North Carolina State University	N/A
Software and algorithms
FIJI	NIH	https://imagej.net/Fiji
JMP Pro14	SAS	https://www.jmp.com/en_us/software/data-analysis-software.html
Other
MetroMix 360 Growing Medium	SunGro Horticulture	CAT# GP92031
Sunshine Redi-Earth Pro Growing Mix	SunGro Horticulture	CAT# GP92747