A new study published in Scientific Reports introduces a technological advancement that could reshape how farmers provide nitrogen to crops. Researchers from the University of Wisconsin-Madison, Purdue University, and Pivot Bio collaborated on this groundbreaking work, demonstrating that gene-editing can enhance certain microbes’ ability to fix atmospheric nitrogen for cereal crops.
The team traced isotopically labeled nitrogen from the air into corn plants, confirming that gene-edited microbes successfully transferred this nutrient. Field trials showed that these microbes could replace up to 40 pounds of synthetic nitrogen fertilizer per acre without affecting yields.
Dr. Bruno Basso, an environmental science professor, highlighted the complexities of matching nitrogen supply with crop needs, a challenge exacerbated by unpredictable weather. The research targets diazotrophs, bacteria that naturally convert atmospheric nitrogen into a more accessible form for plants. However, exposure to high levels of soil nitrogen often diminishes their effectiveness.
Co-author Dr. Jean-Michel Ané explained that the goal is to enable these bacteria to continue fixing nitrogen even in nitrogen-rich environments. By employing gene-editing techniques, researchers at Pivot Bio developed microbes that remain active in high-nitrogen conditions.
The study introduces PROVEN® 40, Pivot Bio’s latest product featuring these enhanced microbes. Findings suggest that farmers can reduce synthetic fertilizer use while maintaining productivity, thus benefiting both the environment and agricultural practices.
Dr. Karsten Temme, Pivot Bio’s chief innovation officer, emphasized the potential for this scalable technology, which has already been applied to over 13 million acres in the U.S. since its launch. The implications could be significant if this research leads to more sustainable nitrogen management practices, ultimately benefiting farmers and communities alike.