AvrRps4 effector family processing and recognition in lettuce.

ABSTRACT: During pathogenesis, effector proteins are secreted from the pathogen to the host plant to provide virulence activity for invasion of the host. However, once the host plant recognizes one of the delivered effectors, effector-triggered immunity activates a robust immune and hypersensitive response (HR). In planta, the effector AvrRps4 is processed into the N-terminus (AvrRps4^N ) and the C-terminus (AvrRps4^C ). AvrRps4^C is sufficient to trigger HR in turnip and activate AtRRS1/AtRPS4-mediated immunity in Arabidopsis; on the other hand, AvrRps4^N induces HR in lettuce. Furthermore, AvrRps4^N -mediated HR requires a conserved arginine at position 112 (R112), which is also important for full-length AvrRps4 (AvrRps4^F ) processing. H

SUBMITTER: Nguyen QM 

PROVIDER: S-EPMC9366065 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature