Organism | UniProt | Comment | Textmining |
---|---|---|---|
Arabidopsis thaliana | Q8VWJ1 | - |
- |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
leaf | - |
Arabidopsis thaliana | - |
Organism | Comment | Expression |
---|---|---|
Arabidopsis thaliana | abiotic stress results in an 18 and 8fold increase in total tocopherol content in wild-type and isoform HPT1 overexpressing leaves, respectively, with tocopherol levels in the ovrexpressing strain being 2- to 4fold higher than wild type at all experimental time points. Increased total tocopherol levels correlate with elevated HPT mRNA levels and HPT specific activity | up |
General Information | Comment | Organism |
---|---|---|
physiological function | abiotic stress results in an 18 and 8fold increase in total tocopherol content in wild-type and isoform HPT1 overexpressing leaves, respectively, with tocopherol levels in the ovrexpressing strain being 2- to 4fold higher than wild type at all experimental time points. Increased total tocopherol levels correlate with elevated HPT mRNA levels and HPT specific activity, suggesting that HPT activity limits total tocopherol synthesis during abiotic stress. Overexpression of gamma-tocopherol methyltransferase in the HPT1 overexpression strain results in nearly complete conversion of gamma- and delta-tocopherols to alpha- and beta-tocopherols | Arabidopsis thaliana |