Huge edible plants could feed more people.

Giant Beanstalk

In agriculture, scientists have used genetic engineering to create hardier and more nutritious crops for decades.

Now researchers are gene-hacking plants to make them gigantic — an area of research that could vastly increase food yields, according to MIT Technology Review.

Swole Beans

A new paper in the journal Science describes work by researchers at the University of Illinois and the Department of Agriculture. They added new DNA instructions to tobacco plants in order to coax them to grow larger in response to light — changes, according to the paper, that led to yield increases of up to 40 percent.

"I was skeptical the entire way, but you can really see the difference," Paul South, a USDA biochemist who worked on the project, said in an interview with MIT Tech.

Future Food

The Illinois work on making plants bigger through gene-hacking has attracted the attention of the Bill & Melinda Gates Foundation, which has contributed about $80 million to the research in hopes that it could improve global food security, according to MIT Tech.

The next step, the researchers say, is to make similar changes to the genetic code of other crops, including soybeans and cowbeans — though they caution that it could be decades before regulatory agencies clear the large plants for human consumption.

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