Biosynthesis of phytoquinones. Incorporation of L-[Me-14C,3H]methionine into terpenoid quinones and chromanols in maize shoots.

@article{Threlfall1968BiosynthesisOP,
  title={Biosynthesis of phytoquinones. Incorporation of L-[Me-14C,3H]methionine into terpenoid quinones and chromanols in maize shoots.},
  author={David R. Threlfall and G. R. Whistance and Trevor Walworth Goodwin},
  journal={The Biochemical journal},
  year={1968},
  volume={106 1},
  pages={
          107-12
        }
}
1. Radioactivity from l-[Me-(14)C,(3)H]methionine is incorporated into phylloquinone, plastoquinone, gamma-tocopherol, alpha-tocopherol, alpha-tocopherolquinone and ubiquinone in maize shoots. 2. Comparative studies with other terpenoids (squalene and beta-carotene) and chemical degradation of selected quinones (ubiquinone and plastoquinone) established that all the radioactivity is confined to nuclear methyl substituents. 3. In ubiquinone 76% of the radioactivity is in the methoxyl groups and… CONTINUE READING