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4.2.3.46: alpha-farnesene synthase

This is an abbreviated version!
For detailed information about alpha-farnesene synthase, go to the full flat file.

Word Map on EC 4.2.3.46

Reaction

(2E,6E)-farnesyl diphosphate
=
(3E,6E)-alpha-farnesene
+
diphosphate

Synonyms

(E,E)-alpha-farnesene synthase, AdAFS1, AFS, AFS-1, AFS1, alpha farnesene synthase 1, alpha-farnesene synthase, alpha-farnesene synthase-1, E,E-alpha-farnesene synthase, MdAFS1, sesquiterpene synthase, TPS02, TPS03, TPS2, Tps7

ECTree

     4 Lyases
         4.2 Carbon-oxygen lyases
             4.2.3 Acting on phosphates
                4.2.3.46 alpha-farnesene synthase

Expression

Expression on EC 4.2.3.46 - alpha-farnesene synthase

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EXPRESSION
ORGANISM
UNIPROT
LITERATURE
enzyme expression is induced by Tetranychus urticae (two-spotted spider mites) and exogenous application of methyl jasmonate
-
expression is induced in leaves by elicitor and insect treatment
expression of AdAFS1 is significantly higher in flowers than in leaf tissue. Within floral tissues, expression is highest in petals and stamens. AdAFS1 expression is low in sepals in both sexes and also in ‘Hayward’ pistils. AdAFS1 expression in ‘Hayward’ is co-ordinated with anthesis, with low levels of expression in unopened flower buds and high levels detected in open flowers. The temporal accumulation patterns of AdAFS1 mRNA is constitutive. No difference in expression between male and female flowers. AdAFS1 expression is similar in leaves of both cultivars ‘Chieftain’ and ‘Hayward’
expression of pMdAFS1 is repressed by 1-methylcyclopropene treatment, pMdAFS1 expression is controlled by ethylene
induced by Lymantria dispar feeding, up to 136fold increase in transcript abundance
-
MdAFS1 transcript abundance increases rapidly in untreated Cortland and Law Rome fruit, reaching close to maximal values after 2 weeks of storage, whereas in Idared controls it increases through 4 weeks, declines slightly, and then increases to a maximum by 10 weeks. 1-Methylcyclopropene treatment initially suppresses MdAFS1 expression in all three cultivars. However, Cortland and Law Rome escape from this suppression after 10-15 weeks, with MdAFS1 transcript abundance increasing to maximal control levels by 15-20 weeks. In Cortland, but not in Law Rome, this delayed increase in expression occurrs sooner in green than in red tissue. MdAFS1 transcript levels increase gradually in 1-methylcyclopropene-treated Idared fruit, but throughout storage remains much lower than the maximum levels in untreated fruit