Root responses to aluminium and iron stresses require the SIZ1 SUMO ligase to modulate the STOP1 transcription factor. - Mercier C; Roux B; Have M; Le Poder L; Duong N; David P; Leonhardt N; Blanchard L; Naumann C; Abel S; Cuyas L; Pluchon S; et al. (The Plant journal : for cell and molecular biology, 2021)