Transcriptome sequencing identifies SPL7-regulated copper acquisition genes FRO4/FRO5 and the copper dependence of iron homeostasis in Arabidopsis. - Bernal M; Casero D; Singh V; Wilson GT; Grande A; Yang H; Dodani SC; Pellegrini M; Huijser P; Connolly EL; Merchant SS; Krämer U (The Plant cell, 2012)