Question

Read the article and understand (a) challenges, (b) Background information, (c) What material is used, (d) What is being done to improve the vitamin C content in plants. (e) what are the findings, and (f) What do you think about the research work (what is your opinion)

Plants and most animals can synthesize their own L-ascorbic acid (vitamin C), but a mutation in the L-gulono-γ-lactone oxidase gene in the primate lineage makes it necessary for humans to acquire this vital compound from their diet. Despite the fact that plants and animals synthesize ascorbic acid via different pathways, transgenic tobacco and lettuce plants expressing a rat cDNA encoding L-gulono-γ-lactone oxidase accumulated up to seven times more ascorbic acid than untransformed plants. These results demonstrate that basal levels of ascorbic acid in plants can be significantly increased by expressing a single gene from the animal pathway.

Answer 1

a) challenges are increasing vitamin C synthesis by mutations,and overcoming the deficiency

b) background information is about vitamin C how it occurs ? Which process provides better results to produce vitamin C?

c) transgenic tobacco and lettuce plants

d) expressing a rat cDNA encoding L -gulono- $\gamma$ - lactone oxidase

e) transgenic gene or plant encoded animal DNA gives 6 times more product than the Normal or untransformed one

f) vitamin C is one of the component which is required for body functions.now a days mutations are the best for synthesise the compounds effectively to avoid deficiency