Terpene Production Mechanisms

Terpene production mechanisms refer to the biochemical pathways and genetic systems that cannabis plants use to synthesize volatile aromatic compounds. These mechanisms operate through multiple enzymatic steps, beginning with the mevalonate and methylerythritol phosphate (MEP) pathways that produce isoprene units, which are then assembled into larger terpene molecules. Terpene synthase enzymes—the key genetic controllers—catalyze the final cyclization and modification steps that determine which specific terpenes accumulate in resinous glandular structures. Understanding these mechanisms is foundational to cannabis breeding, as terpene profiles are influenced by both genetic expression and environmental factors like temperature, light, and soil conditions during cultivation.

Breeders working in terpene-targeted selection use knowledge of these biochemical pathways to identify parent plants with robust or specialized terpene synthase expression. By selecting for specific enzymatic activity patterns, breeders can stabilize desirable aroma profiles across generations and develop lines with consistent secondary metabolite production.