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Potatoes with a higher vitamin B6 content

Vitamin B6 is a vitamin that organisms need as a substrate in metabolic reactions. Although it can be obtained from the plant's dietary resources, the availability of the vitamin in its edible parts is not sufficient to reach the recommended daily doses.

Now, however, genetic engineering techniques have succeeded in demonstrating that the overexpression of an Arabidopsis gene enhances the vitamin B6 content in model plants.

The study, carried out by a research team led by Deepak Singh Bagri, of the Dr Harisingh Gour Central University of India, aimed to develop a genetically-modified potato (Solanum tuberosum) that overexpressed the PDXII gene; a key vitamin B6 pathway gene in Arabidopsis thaliana.

The resulting transgenic potato tubers exhibited a significant improvement in vitamin B6 content, with up to 150% increases compared to the control potatoes. This significant increase in vitamin B6 content was also found to be associated with greater resistance to abiotic stresses, including salt stress.

Source: Plant Science

Publication date: 5/16/2018


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