Figure 1.

Pathway associated with terpene synthesis in Camellia sinensis. The following enzymes and compounds are involved in the MVA pathway: AACT, acetoacetyl-CoA thiolase; HMGS, 3-hydroxy-3-methylglutaryl- coenzyme (a synthase); HMGR, 3-hydroxy-3-methylglutaryl coenzyme (a reductase); MVK, mevalonate kinase; PMK, 5-phosphatemevalonate kinase; MDC, mevalonate-5-phosphate decarboxylase; IPP, isopentenyl pyrophosphate; IDI, isopentenyl pyrophosphate isomerase; DMAPP, dimethylallyl pyrophosphate. The following enzymes and compounds are involved in the MEP pathway: DXS, 1-deoxy-d-xylulose-5-phosphate synthase; DXR, 1-deoxy-d-xylulose5-phosphate reductase; MCT, 2-C-methyl-d-erythritol-4-phosphate cytidyltransferase; CMK, cytidyl (4-diphospho)-2-C-methyl-d-erythritol kinase; MDS, 2-C-methyl-d-erythritol-2,4-cyclodiphohate synthase; HDS, 1-hydroxyl-2-methyl-2-(E)-butenyl-diphosphate synthase; HDR, 4-hydroxy-3-methylbut-2-enyldiphosphate reductase; IDI, isopentenyl pyro-phosphate isomerase. The following enzymes are involved in the sesquiterpenes biosynthetic pathway: FDS, farnesyl diphosphate; FPP, farnesyl pyrophosphate; FAS, farnesene synthase; HUS, humulene synthase; NES, nerolidol synthase; SQS, squalene synthase. The following enzymes are involved in the pathways toward monoterpene and diterpene formation: GDS, Geranyl diphosphate; GPP, Geranyl pyrophosphate; LIS, linalool synthase; LS, limonene synthase; MYS, β-Myrcene synthase; OCS, β-Ocimene synthase; NUDX1, Nudix hydrolase 1.