Terpene Biosynthesis

Terpene biosynthesis is the metabolic process through which cannabis plants produce terpenes—volatile organic compounds that contribute to aroma and flavor profiles. This biochemical pathway begins with simple precursor molecules (isoprene units) that combine and transform through enzyme-catalyzed reactions in the plant's glandular trichomes and other tissues. The timing and expression of biosynthetic enzymes varies across cultivars and phenotypes, resulting in the diverse terpene profiles observed in different strain families. Environmental factors including temperature, light spectrum, and soil composition can influence which biosynthetic pathways are upregulated during flower development. Understanding these mechanisms has become central to cannabis breeding programs seeking to stabilize or enhance specific aromatic characteristics.

Breeders working in terpene-focused selection programs study biosynthetic pathways to understand trait inheritance and develop cultivars with consistent, target-driven aroma profiles. Genetic markers linked to terpene synthase expression allow breeders to identify and propagate plants with desired volatile compound ratios across generations.