Limonene Biosynthesis

Limonene biosynthesis refers to the enzymatic pathways through which cannabis plants produce limonene, a naturally occurring monoterpene commonly found in citrus fruits and various cannabis cultivars. In cannabis, limonene production begins with the cyclization of geranyl pyrophosphate (GPP) through the enzyme limonene synthase, which catalyzes the formation of this volatile compound. Lineage records frequently report limonene-dominant phenotypes arising from specific cultivar families, though environmental factors—including temperature, light exposure, and soil composition—significantly influence terpene expression levels. Breeders working with limonene-rich genetics often select parent plants based on gas chromatography analysis and secondary metabolite profiles rather than subjective assessment alone. Understanding the genetic and biochemical mechanisms underlying limonene production

Breeders selectively cross cultivars with documented limonene synthase activity to stabilize this biosynthetic trait in offspring. Phenotypic stability of limonene profiles across generations informs breeding decisions for growers seeking consistent aromatic profiles in commercial or research contexts.