EC Number   |
General Information |
Reference |
|---|
   4.2.3.144 | evolution |
geranyllinalool synthase activity is the likely ancestral function in angiosperms of genes belonging to an ancient TPS-e/f subclade that diverged from the kaurene synthase gene lineages before the split of angiosperms and gymnosperms. The geranyllinalool synthase subclade diverged from the rest of the TPS genes in clade e/f before the split of the gymnosperm and angiosperm lineages, enzymes encoded by genes in this subclade have only been characterized from eudicot species. Laurus nobilis also has a gene belonging to the geranyllinalool synthase subclade of TPS clade e/f and the enzyme encoded by this gene is an active geranyllinalool synthase. Geranyllinalool might have been one of the first specialized metabolites to have evolved from early stages in the evolution of the TPS gene family in plants. Phylogenetic analysis, unrooted tree |
748974 |
| 4.2.3.144 | evolution |
SlGLS, NaGLS, AtGLSs, and several other GLSs come from different eudicot families and constitute a separate branch of the TPS-e/f clade that diverged from kaurene synthases, also in the TPS-e/f clade, before the gymnosperm-angiosperm split. The early divergence of this branch and the GLS activity of genes in this branch in diverse eudicot families suggest that GLS activity encoded by these genes predates the angiosperm-gymnosperm split |
746107 |
| 4.2.3.144 | malfunction |
the tps4 knockout mutant completely lacks induced emission of 4,8,12-trimethyl-1,3,7,11-tridecatetraene but is capable of beta-ionone and alpha-farnesene production, demonstrating that TPS4 is specifically involved in 4,8,12-trimethyl-1,3,7,11-tridecatetraene formation |
-, 723226 |
| 4.2.3.144 | malfunction |
transgenic Arabidopsis lines carrying T-DNA insertions in the TPS04 locus are deficient in (E,E)-geranyllinalool and 4,8,12-trimethyl-1,3,7,11-tridecatetraene synthesis |
-, 723405 |
| 4.2.3.144 | metabolism |
the terpene synthase (TPS) catalyzes a two-step reaction in which carbocation formation of the C20 precursor geranylgeranyl diphosphate (GGPP) is followed by an allylic rearrangement that results in the production of the tertiary alcohol geranyllinalool, which is the precursor for biosynthesis of (E,E)-4,8,12-trimethyltrideca-1,3,7,11-tetraene, TMTT |
746107 |
| 4.2.3.144 | more |
volatile profiles in leaves, flowers, fruits, and roots in male and female Laurus nobilis plants, overview. The biggest gender differences are observed in the flowers, where female flowers have predominantly monoterpenes as well as eugenol and methyleugenol, whereas male flowers contain mostly sesquiterpenes and benzaldehyde |
748974 |
| 4.2.3.144 | physiological function |
contrary to wild-type, transgenic Lotus japonicus plants expressing isoform TPS2 produce (E,E)-geranyllinalool and (E,E)-4,8,12-trimethyltrideca-1,3,7,11-tetraene. Transgenic Nicotiana tabacum expressing isoform TPS2 produces (E,E)-geranyllinalool but not (E,E)-4,8,12-trimethyltrideca-1,3,7,11-tetraene. In olfactory assays, the generalist predatory mite Neoseiulus californicus but not the specialist Phytoseiulus persimilis is attracted to uninfested, transgenic Lotus japonicus plants expressing TPS2 over wild-type plants. The specialist Phytoseiulus persimilis is more strongly attracted by the transgenic plants infested with spider mites than by infested wild-type plants |
730481 |
| 4.2.3.144 | physiological function |
GC-MS analysis of terpene volatiles induced by alamethicin treatment, overview |
746107 |
| 4.2.3.144 | physiological function |
the enzyme is specifically involved in 4,8,12-trimethyl-1,3,7,11-tridecatetraene (TMTT) formation. Induced TMTT production in Arabidopsis is a by-product of activated jasmonic acid signaling, rather than an effective defense response that contributes to resistance against Pseudomonas syringae |
-, 723226 |
