What is the correct classification for glyphosate?

• A. Glutamine synthetase inhibitors
• B. ALS inhibitor
• C. Enolpyruvyl shikimate phosphate synthase (EPSPS) inhibitor
• D. Acetyle CoA carboxylase (ACCase) inhibitor

Answer: (C)

Glyphosate is classified as an enolpyruvyl shikimate phosphate synthase (EPSPS) inhibitor. This classification is vital because glyphosate specifically targets the EPSPS enzyme, which is crucial in the shikimic acid pathway. This pathway is involved in the biosynthesis of aromatic amino acids and is essential for the growth and survival of many plants and some microorganisms. Since humans and animals do not have this pathway, glyphosate can be used effectively as a herbicide with minimal direct toxicity to non-target organisms.

Understanding the specific action of glyphosate highlights its effectiveness as a systemic herbicide, as it prevents the synthesis of necessary amino acids, ultimately leading to the death of the vulnerable plant species. This mechanism is a key factor in the application and management of glyphosate in agriculture, making it important to recognize its classification accurately.