Involved in the repression of jasmonate (JA)-induced genes. Forms a ternary complex with TIFY11A/JAZ9 and BHLH094 to negatively regulate JA-responsive genes. Involved in transcriptional regulation in the root tip. Plays a regulatory role in root cell elongation. Regulates root cell elongation during salt stress. Interacts with BHLH094, BHLH089, TIFY11A/JAZ9 and TIFY11C/JAZ11. Forms a ternary complex with TIFY11A/JAZ9 and BHLH094 in the nucleus. Expressed in root tips. Expressed at high levels in the meristematic zone and at low levels in the elongation zone of the root tip. Defects in root growth.