UK scientists are planning to grow genetically modified (GM) apples and strawberries that would protect against tooth decay. Researchers at biotech firm Horticultural Research International plan to add a gene that makes an antibacterial peptide (a very small protein) to the fruit. The peptide works by preventing the bacteria that cause decay from sticking to the teeth, for up to 80 days at a time.
David James, professor of plant biotechnology at the institute, said that GM fruit would be an ideal method of delivering the peptide, particularly to children. Speaking at the British Association for the Advancement of Science Festival last week, Professor James said that apple farmers in Kent and Hertfordshire would be driven out of business by competitors unless they were free to take advantage of the benefits of GM technology.
Meanwhile, US scientists have developed GM tomatoes and bananas that contain a vaccine against hepatitis B. Plant vaccines will be a billion-dollar business, said Professor Charles Arntzen of Cornell University. The edible hepatitis B vaccines will cost less than one penny a dose to make, compared to £10 for a course of injected vaccine. Speaking to scientists at the US embassy in London, Professor Arntzen said that the 40 new vaccines being worked on worldwide opened the possibility of eradicating some diseases altogether.
Sources and References
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GM apple a day may protect teeth
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Vaccine in GM fruit could wipe out hepatitis B
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GM apple will keep dentist away
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