Enzyme Activity

Enzyme activity in cannabis refers to the biochemical processes that drive cannabinoid and terpene synthesis, degradation, and transformation throughout the plant's lifecycle. Key enzymatic pathways include those catalyzed by synthases (which build cannabinoids like CBGA and THCA), and various oxidases and reductases that modify secondary metabolites. Enzyme expression varies significantly across cultivars and developmental stages, influenced by both genetics and environmental conditions. Understanding enzyme kinetics helps breeders identify plants with distinct metabolic signatures—including cannabinoid ratios, terpene profiles, and phenotypic stability. Lineage records frequently report correlations between specific parent genetics and consistent enzyme-driven traits across offspring.

Breeders working in this category select for stable enzyme expression patterns to reliably produce target cannabinoid and terpene combinations across generations. Enzyme activity traits are particularly relevant when developing high-CBDA, high-CBD, or rare-cannabinoid varieties, since the parent plants' enzymatic competence directly influences F1 and F2 outcomes.