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Transformed tobacco fields could cuts costs for medical proteins

Date: 10.7.2019 

A new Cornell University-led study describes the first successful rearing of engineered tobacco plants in order to produce medical and industrial proteins outdoors in the field, a necessity for economic viability, so they can be grown at large scales.

Kredit: CC0 Public Domain.The market for such biologically derived proteins is forecast to reach $300 billion in the near future. Industrial enzymes and other proteins are currently made in large, expensive fermenting reactors, but making them in plants grown outdoors could reduce production costs by three times.

Researchers from Cornell and University of Illinois have engineered plants capable of making proteins not native to the plant itself. "We knew these plants grew well in the greenhouse, but we just never had the opportunity to test them out in the field," said Beth Ahner, professor of biological and environmental engineering.

That opportunity came when University of Illinois plant biology professor Stephen Long obtained a permit from the U.S. Department of Agriculture to grow the genetically modified plants in the field.

"When you put plants in the field, they have to face large transitions, in terms of drought or temperature or light, and they're going to need all the protein that they have," Ahner said. "But we show that the plant still is able to function perfectly normally in the field [while producing nonnative proteins]. That was really the breakthrough."

 


 

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