Manipulation of tocopherol levels in transgenic plants

摘要

Disclosed is a gene sequence which has been identified as encoding 2-methyl-6-phytylplastoquinol/2-methyl-6-solanylplastoquinol-9 methyltransferase from synechoeystis. By introducing a genetic construct having a 2-methyl-6-phytylplastoquinol/2-methyl-6-solanylplastoquinol-9 methyltransferase coding sequence placed under the control of a plant promoter into a plant, transgenic plants can be made having altered 2-methyl-6-phytylplastoquinol/2-methyl-6-solanylplastoquinol-9 methyltransferase expression, to effect changes in the tocopherol profile of the plant. Transgenic plants can be made that have altered tocopherol levels in their tissues.