Natural Product 2-Amino-3-methylhexanoic Acid Stimulates Cucumber Growth via Nutrient and Energy Coordination

), leading to an increased stomatal conductance and net photosynthetic rate. Additionally, elevated sucrose production in source leaves, coupled with its SWEET-transporter-mediated allocation to sink tissues, further fueled growth. By integrating these pathways, AMHA targets core physiological and molecular processes, demonstrating strong potential to improve crop productivity. These findings establish AMHA as a promising PGR that coordinates phytohormone signaling, nutrient uptake, and sucrose metabolism to enhance plant vigor, offering valuable insights for modern, eco-friendly agricultural practices.