Resveratrol is a popular antioxidant present in grape skins, which might
have helpful benefits for the heart. Thus, scientists developed
resveratrol-enriched
[www.isaaa.org] rice
(RR) containing stilbene synthase
[www.isaaa.org] gene to
induce resveratrol production and phosphinothricin-N-acetyltransferase gene
to confer
[www.isaaa.org]
herbicide resistance. Min Sung Kim of Incheon National University, South
Korea, and a team of researchers evaluated if there are metabolic changes in
rice enriched with resveratrol.

They planted the non-RR and RR plants for two seasons in three different
areas in South Korea with different climatic conditions. Then they analyzed
the principal components of the two rice varieties, which showed that
chemical composition was affected more by growing season and location than
genetic transformation. Furthermore, statistical analysis revealed that
there were no significant differences in the biochemical structures of RR
compared with the non-RR plants. The results also showed that herbicide
treatment did not affect the chemical composition of RR.

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