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1.13.11.69: carlactone synthase

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

Word Map on EC 1.13.11.69

Reaction

9-cis-10'-apo-beta-carotenal
+ 2 O2 =
carlactone
 +
(2E,4E,6E)-7-hydroxy-4-methylhepta-2,4,6-trienal

Synonyms

carotenoid cleavage dioxygenase, carotenoid cleavage dioxygenase 8, carotenoid cleavage dioxygenase 8 a, carotenoid cleavage dioxygenase 8 b, CCD10a, CCD8, CCD8A, CCD8B, MAX4, MORE AXILLARY BRANCHING 4, NCED8, PsCCD8, SlCCD8

ECTree

     1 Oxidoreductases
         1.13 Acting on single donors with incorporation of molecular oxygen (oxygenases)
             1.13.11 With incorporation of two atoms of oxygen
                1.13.11.69 carlactone synthase

Expression

Expression on EC 1.13.11.69 - carlactone synthase

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EXPRESSION
ORGANISM
UNIPROT
LITERATURE
enzyme expression is dramatically stimulated by 73fold in the root by phosphate limitation and by 6fold under low nitrogen
-
enzyme expression is elevated in stems, shoot apices, and especially in roots under phosphate starvation conditions
-
enzyme is upregulated in the root eleongation zone following 24 h auxin treatment, and hypocotyl, and this is not required for the inhibition of shoot branching
enzyme transcript levels significantly increase in response to phosphate limitation
-
expression is induced by auxin
gene is repressed by low phosphate stress
in early interaction stages, Rhizophagus sp. activates the Arabidopsis gene CCD8. A significant increase in CCD8 transcript abundance is observed in roots of Arabidopsis within 24 h after transfer of the seedlings onto the mycorrhizal mycelium of Rhizophagus sp.
isoform CCD8a is down-regulated dramatically in the upper and lower stems after treatment with 0.001 or 0.005 mM of GR24
isoform CCD8b is down-regulated dramatically in the upper and lower stems after treatment with 0.001 or 0.005 mM of GR24
no evidence is found for auxin-induced upregulation of enzyme expression in nodal tissue
Phelipanche aegyptiaca infestation results in reduction of expression of CCD8 gene by 4.5fold
-
the enzyme is down-regulated in wintersweet during branching
-
the mycelium of Fusarium and Trichoderma do not significantly affect CCD8 transcript abundance compared with control plants