TPS3 — Lactuca sativa

Summary

LsTPS3 (TPS3) on chromosome 2 of garden lettuce encodes a terpene synthase, possessing multiple terpene cyclase and synthase domains and exhibiting alpha-farnesene, tricyclene, R-linalool, gamma-terpinene, limonene, pinene, sabinene, (E)-beta-ocimene, myrcene, and sesquiterpene synthase activities. The gene is associated with monoterpenoid and sesquiterpenoid biosynthesis, as well as responses to herbivores, insects, wounding, and jasmonic acid. It has been linked to root development, brassinosteroid-mediated signalling, and traits including nitrate uptake, leaf composition, seedling growth, and organ identity. The encoded protein localises to the chloroplast membrane and stroma, plant-type vacuole, Golgi, mitochondria, and cytosol. Related genes in other species are linked to wound response, volatile terpene production, and linalool biosynthesis.