Toxisomes are specialized organelles found in certain plant cells, particularly those involved in the production and storage of toxic compounds, such as alkaloids and other secondary metabolites. They serve as storage sites for these toxic substances, which can deter herbivores and pathogens. Toxisomes help compartmentalize these potentially harmful compounds, preventing damage to the plant's own cellular machinery. Their study is important for understanding plant defense mechanisms and the ecological roles of toxins in plant interactions.