Genetically modified corn affects its symbiotic relationship with non-target soil organisms

An increasing number of crops commercially grown today are genetically modified (GM) to resist insect pests and/or tolerate herbicides. Although Bt corn is one of the most commonly grown GM crops in the United States, little is known about its effects on the long-term health of soils. Although there are many benefits to using biotechnology in agriculture, such as potentially reducing insecticide use, there may be unintended side effects as well—does GM corn impact non-target soil organisms, such as arbuscular mycorrhizal fungi, or affect plants subsequently grown in the same field?

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