In discussions about GE crops, one of the contentious topics that often comes up is the use of what has been effectively dubbed “Terminator” technology. These are crops that are engineered to produce sterile seeds that cannot be regrown. The use of this technology to force farmers to repurchase their seeds every year is often what causes the greatest objection from opponents of genetic engineering. But what is interesting is that like the films where this technology gets its nickname, it can also be used to protect seed-saving farmers.

“Terminator” technology, also referred to as “Suicide Seeds,” are marketing terms coined by GE opponents to reframe what is technically called Genetic Use Restriction Technology, or GURT. This technology can take several forms, the most widely discussed one was developed by scientists working at the USDA and the Delta and Land Pine company, which is now owned by Monsanto. It works by means of three engineered genes, that when brought together in one plant, they act in combination to halt the development of embryos in the seeds the plant produces. The result is a plant that produces food as normal, but does not produce fertile seeds.

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