5-Aminolevulinic acid promotes cell division and young fruit development by suppressing the PpARF9–PpGH3.1 auxin-conjugation module in peach
5-Aminolevulinic acid (ALA) is an emerging plant growth regulator, yet its mechanisms in fruit development remain unclear. Here, we show that ALA promotes early growth and ultimate size in peach (Prunus persica) fruits. ALA treatment significantly enhanced the mesocarp area and the cell number, accompanied by elevated...