Enzyme Pathways

Enzyme pathways in cannabis refer to the biochemical processes that synthesize terpenes, cannabinoids, and other secondary metabolites. These pathways involve sequential enzymatic reactions—catalyzed by proteins within plant cells—that convert simple precursor molecules into complex aromatic and bioactive compounds. Understanding enzyme pathways is fundamental to cannabis genetics, as genetic variations in enzyme-coding genes directly influence which terpenes accumulate and in what proportions. Breeders studying these pathways can trace how specific cultivars develop distinct chemical profiles across generations. Modern genomic research continues to map these metabolic routes, revealing how environmental stress, photoperiod, and plant age trigger different enzymatic activities during flower development.

Breeders working in advanced selection programs use enzyme pathway knowledge to predict and stabilize terpene expression across offspring. Marker-assisted selection targeting genes encoding key terpene synthases and other pathway enzymes enables more precise control of strain chemistry without relying solely on phenotypic observation.