SEARCH

SEARCH BY CITATION

Keywords:

  • Xanthium strumarium;
  • tocopherols;
  • leaf

summary

The concentration of tocopherol in the leaves of Xanthium strumarium L., plants growing under vegetative conditions, were analysed to determine whether they are maintained constant in the different leaves, during the light period throughout the vegetative growth of the plant, α- and γ-Tocopherols were present in this tissue. A relation between tocopherol content and leafage was observed. α-Tocopherol accumulated with the age of the leaf. γ-Tocopherol was present in low concentrations throughout the life of the leaf.