Engineered Sugarcane Shows Improved Tolerance to Glyphosate

Researchers in Brazil have developed genetically engineered sugarcane with enhanced glyphosate tolerance by modifying a key plant enzyme. The study demonstrates a potential strategy to improve weed control in sugarcane without affecting overall plant growth.

The research team introduced and overexpressed a mutated version of the plant's own EPSPS gene, known as ScEPSPS. The modified plants were able to survive high levels of glyphosate that would normally inhibit growth. Molecular analyses showed strong expression of the engineered gene, while high-performance liquid chromatography (HPLC) quantification confirmed higher levels of key amino acids after herbicide application.

The findings indicate that the engineered sugarcane maintained normal growth and development despite the genetic modification. The researchers conclude that overexpressing a mutated EPSPS gene is a promising approach to improving herbicide tolerance, which could help farmers manage weeds more effectively and enhance crop productivity.

For more information, read the study from GM Crops & Food.