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1992 (1)
1Author    A. Ntonio, A. Calderón, E. G. Arcía-Florenciano, Marí, A. Pedreño, Rom Ualdo, M. Uñ Oz, A.Ros BarcelóRequires cookie*
 Title    The Vacuolar Localization of Grapevine Peroxidase Isoenzymes Capable of Oxidizing 4-Hydroxystilbenes  
 Abstract    A study o f the subcellular localization o f peroxidase isoenzymes capable o f oxidizing 4-hydroxystilbenes to viniferin-type com pounds has been carried out in cultured cells derived from Vitis vinifera cv. G am ay berries. The study revealed that these isoenzym es are apparently located, in soluble form, in the vacuolar sap and are strongly inhibited by vacuolar anthocya-ni(di)ns in the concentration range found in planta. These results suggest that the inhibition o f the 4-H S peroxidase system in vacuoles, as a consequence o f anthocyani(di)n accum ulation, could be responsible for the loss o f viniferin production potential which accompanies grape berry veraison. 
  Reference    Z. Naturforsch. 47c, 215 (1992); received July 24/N ovem ber 14 1991 
  Published    1992 
  Keywords    Anthocyani(di)ns, Peroxidase Isoenzymes, Vacuole, Viniferin Synthesis, Vitis vinifera cv Gam ay 
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 TEI-XML for    default:Reihe_C/47/ZNC-1992-47c-0215.pdf 
 Identifier    ZNC-1992-47c-0215 
 Volume    47