Improving natural pigments by genetic modification of crop plants

Improving natural pigments by genetic modification of crop plants 

Currently, a variety of transformation methods have been developed, and this has allowed the transformation of many of the world s most important crop plants. 

Plant transformation techniques allow the delivery of the transforming DNA through the cell wall and plasma and nuclear membranes, without compromising the viability of the cell. Gene delivery can be performed either via a biological vector (plant viruses or bacteria) or by non-biological vector-free procedures (chemical methods, microinjection, particle bombardment, etc.) (Birch 1997). 

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