Question

How is 'Flavr Savr' tomato produced?

Answer 1

Production and action:

1. Fruit softening is promoted by the enzyme polygalacturonase, which breaks down pectin in the tomato cell walls.
2. Genetic engineering was used to block the expression of the tomato gene responsible for producing polygalacturonase.
3. With less polygalacturonase, pectin breaks down more slowly, delaying fruit softening and rotting.
4. The tomatoes therefore remain firm and fresh for longer and retain their flavour; they also have increased total soluble solids.

‘Flavr Savr’ is a transgenic tomato with delayed softening and an extended shelf life.