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. 2019 Feb 12;10:76. doi: 10.3389/fpls.2019.00076

FIGURE 1.

FIGURE 1

Many factors influence the expression of BRC1, including developmental, positional, genetic, hormonal, sugar signal and environmental factors. Auxin, cytokinin (CK), and strigolactone (SL) are implicated in the hormonal regulation of BRC1 expression; auxin and SLs as promoters of BRC1 and CKs as an inhibitor of BRC1. The red line, inhibition effect; the green arrow, stimulation effect; the yellow bullet-end lines, protein interaction; the violet element, plant hormones; the green element, plant nutrition; the green element, the yellow element, exogenous influence factor; the gray triangle, the proteins that interact with BRC1/TB1; D53, DWARF 53; HB21, HOMEOBOX PROTEIN 21; HB40, HOMEOBOX PROTEIN 40; HB53, HOMEOBOX PROTEIN 53; IPA1, IDEAL PLANT ARCHITECTURE1; NCED3, NINE-CIS-EPOXICAROTENOID DIOXIGENASE 3; PHYB, PHYTOCHROME B; T6P, trehalose-6 phosphate.