InterPro domain: IPR044787

This entry represents a group of plant Myb family transcription factors, including HHO1-6, HRS1 and EFM from Arabidopsis. HRS1 represses primary root development in response to phosphate deficiency conditions, only when nitrate is present [ 1 ]. It is also required for suppressing abscisic acid (ABA) signalling in germinating embryo axis, which promotes the timely germination of seeds [ 2 ]. EFM functions as a flowering repressor, directly repressing FT expression in a dosage-dependent manner in the leaf vasculature [ 3 ].

1. AtNIGT1/HRS1 integrates nitrate and phosphate signals at the Arabidopsis root tip. Nat Commun 6, 6274
2. HRS1 acts as a negative regulator of abscisic acid signaling to promote timely germination of Arabidopsis seeds. PLoS One 7, e35764
3. A MYB-domain protein EFM mediates flowering responses to environmental cues in Arabidopsis. Dev Cell 30, 437-48