Article
Down-regulation of tomato PHYTOL KINASE strongly impairs tocopherol biosynthesis and affects prenyllipid metabolism in an organ-specific manner.
Journal of experimental botany - 1 Feb 2016
Almeida Juliana, Azevedo Mariana da Silva, Spicher Livia, Glauser Gaétan, vom Dorp Katharina, Guyer Luzia, del Valle Carranza Andrea, Asis Ramón, de Souza Amanda Pereira, Buckeridge Marcos, Demarco Diego, Bres Cécile, Rothan Christophe, Peres Lázaro Eustáquio Pereira, Hörtensteiner Stefan, Kessler Félix, Dörmann Peter, Carrari Fernando, Rossi Magdalena
Abstract excerpt
Tocopherol, a compound with vitamin E (VTE) activity, is a conserved constituent of the plastidial antioxidant network in photosynthetic organisms. The synthesis of tocopherol involves the condensation of an aromatic head group with an isoprenoid prenyl side chain. The latter, phytyl diphosphate, can be derived from chlorophyll phytol tail recycling, which depends on phytol kinase (VTE5) activity. How plants...
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