DELLA-mediated gibberellin signalling regulates Nod factor signalling and rhizobial infection

Abstract

Bacterial Nod Factors (NF) regulate the formation of nitrogen fixing symbiotic nodules on legume roots. Here, the authors show that gibberellins act via DELLA proteins to regulate nodulation and propose that DELLA acts with NSP2 and NF-YA1 as a transcriptional co-activator of ERN1-dependent NF signalling.