plant-hormones
Plant hormones are signal molecules produced within plants that regulate all aspects of growth, development, and physiological processes at extremely low concentrations. Understanding these hormone systems is critical for plant science because they control pathogen defense, stress tolerance, and reproductive development—making them essential for advancing agriculture and developing more resilient crops. Since every plant cell can produce hormones, their study is fundamental to comprehending plant biology and improving agricultural practices.
open_in_new WikipediaPubMed · 2026-02-09
Rice uses a hormone signal to count its phosphorus supply and adjust how many shoots it grows accordingly.
Low P triggers strigolactone biosynthesis
Strigolactone suppresses tiller buds
Architecture matches nutrient availability
