Modification of strigolactone levels increases the productivity and resilience of corn plants

The use of chemical fertilizers, especially nitrogen and phosphorus, contributes significantly to global warming and environmental pollution. Natural plant hormones play a key role in nutrient uptake and the promotion of symbiotic relationships with mycorrhizal fungi, which improve the uptake of phosphate and nitrate. Current limitations lie in the inefficient uptake of nutrients by plants, which leads to overuse of resources and soil degradation. Innovative approaches in plant breeding can improve the uptake and supply of fertilizer to plants, thereby increasing productivity while reducing environmental impact.

The overall goal of the project was to investigate improved nutrient uptake and resilience to environmental stress in corn plants through targeted genome editing. The use of CRISPR/Cas9 technology was intended to modulate strigolactone biosynthesis, leading to improved root architecture. This should pave the way for the development of new breeding strategies that can be integrated into breeding programs and contribute to long-term food security and more sustainable agriculture.