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Literature summary for 2.5.1.32 extracted from

  • Burkhardt, P.K.; Beyer, P.; Wunn, J.; Kloti, A.; Armstrong, G.A.; Schledz, M.; Von Lintig, J.; Potrykus, I.
    Transgenic rice (Oryza sativa) endosperm expressing daffodil (Narcissus pseudo-narcissus) phytoene synthase accumulates phytoene, a key intermediate of provitamin A biosynthesis (1997), Plant J., 11, 1071-1078.
    View publication on PubMed

Application

Application Comment Organism
nutrition engineering of a critical step in provitamin A biosynthesis in a non-photosynthetic, carotenoid-lacking plant tissue, important implications for long-term prospects of overcoming worldwide vitamin A deficiency Narcissus pseudonarcissus

Cloned(Commentary)

Cloned (Comment) Organism
the Japonica rice model variety Taipei 309 is transformed by microprojectile bombardment with a cDNA coding for phytoene synthase under the control of either a constitutive or an endosperm-specific promoter. In transgenic rice plants the enzyme is active Narcissus pseudonarcissus

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
geranylgeranyl diphosphate + geranylgeranyl diphosphate Narcissus pseudonarcissus first of four specific enzymes necessary for beta-carotene biosynthesis in plants prephytoene diphosphate + diphosphate
-
?

Organism

Organism UniProt Comment Textmining
Narcissus pseudonarcissus
-
-
-

Source Tissue

Source Tissue Comment Organism Textmining
endosperm
-
Narcissus pseudonarcissus
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
geranylgeranyl diphosphate + geranylgeranyl diphosphate
-
Narcissus pseudonarcissus prephytoene diphosphate + diphosphate
-
?
geranylgeranyl diphosphate + geranylgeranyl diphosphate first of four specific enzymes necessary for beta-carotene biosynthesis in plants Narcissus pseudonarcissus prephytoene diphosphate + diphosphate
-
?