While global food demand continues to rise, improving how crops use nitrogen is essential for building a sustainable agricultural system. This researche points out that the core challenge is to increase nitrogen use efficiency (NUE) while simultaneously reducing the amount of nitrogen fertilizer applied to fields.
According to the study, although traditional genetic methods have identified certain areas of the genome that control nitrogen use under low-nutrient conditions, pinpointing the specific candidate genes from these mapping studies remains difficult.
The author highlights that amino acid metabolism is the “cornerstone” of nitrogen management in plants, as it governs how nitrogen is taken up, assimilated, and moved throughout the plant during its growth and response to stress.
Over the past twenty years, the study notes that biotechnological engineering of these metabolic pathways has shown promising results for improving crop efficiency, particularly in environments where nitrogen is scarce.
Ultimately, the review summarizes current progress in the field and offers new perspectives on identifying candidate genes and developing future strategies for crop improvement.
Learn more about this review here: https://doi.org/10.3389/fpls.2020.602548
Reference:
Dellero, Y. (2020). Manipulating Amino Acid Metabolism to Improve Crop Nitrogen Use Efficiency for a Sustainable Agriculture. Frontiers in Plant Science, 11, 602548.