TY - UNPB
T1 - Basal expression of immune receptor genes requires low levels of the phytohormone salicylic acid
AU - Butselaar, Tijmen van
AU - Silva, Savani
AU - Lapin, Dmitry
AU - Banales, Inigo
AU - Tonn, Sebastian
AU - Schie, Chris van
AU - Ackerveken, Guido Van den
PY - 2023/7/16
Y1 - 2023/7/16
N2 - The hormone salicylic acid (SA) plays a crucial role in plant immunity by activating responses that arrest pathogen ingress. Since SA accumulation also penalizes growth, the question remains why healthy plants synthesize this hormone. By overexpressing SA-inactivating hydroxylases in Arabidopsis thaliana, we reveal that basal SA levels in unchallenged plants are needed for expression of selected immune receptor and signaling genes, thereby enabling early pathogen detection and activation of immunity.
AB - The hormone salicylic acid (SA) plays a crucial role in plant immunity by activating responses that arrest pathogen ingress. Since SA accumulation also penalizes growth, the question remains why healthy plants synthesize this hormone. By overexpressing SA-inactivating hydroxylases in Arabidopsis thaliana, we reveal that basal SA levels in unchallenged plants are needed for expression of selected immune receptor and signaling genes, thereby enabling early pathogen detection and activation of immunity.
U2 - 10.1101/2023.07.14.548351
DO - 10.1101/2023.07.14.548351
M3 - Preprint
BT - Basal expression of immune receptor genes requires low levels of the phytohormone salicylic acid
PB - bioRxiv
ER -