Tenuazonic acid is a natural mycotoxin produced by certain fungi, such as Alternaria species. It is primarily studied for its potential applications in agriculture due to its phytotoxic properties. It has been explored as a natural herbicide, targeting weed control by inhibiting the growth of unwanted plants, with research focusing on selectivity to avoid affecting crops. Additionally, its antimicrobial activity makes it a candidate for use in plant protection against fungal and bacterial pathogens, potentially reducing the reliance on synthetic fungicides. Preliminary research also suggests potential anticancer properties by inhibiting certain cancer cells, though this remains in early stages. In research, tenuazonic acid is used as a tool to study plant-pathogen interactions and the mechanisms of phytotoxicity. However, its toxicity to humans and animals limits its direct application, necessitating careful handling and further studies to ensure safe usage in agricultural settings.