What is produced by Gram-negative bacteria that is notable for its toxic properties?

Endotoxins, produced by Gram-negative bacteria, are components of the outer membrane of these bacteria and are particularly notable for their toxic properties. When Gram-negative bacteria die and lyse, endotoxins are released into the surrounding environment. They consist of lipopolysaccharides (LPS) and are known to trigger strong immune responses in the host organism, which can lead to fever, inflammation, and in severe cases, septic shock. This response is primarily due to the activation of the immune system, as the presence of endotoxins signals the body to initiate defense mechanisms.

The other options listed refer to different types of toxins that do not share the same properties as endotoxins. Exotoxins, for example, are secreted by both Gram-positive and Gram-negative bacteria during their growth and are typically more potent than endotoxins, but they have different mechanisms of action and come from live bacteria rather than being part of the cell structure. Mycotoxins are toxins produced by fungi, and proteotoxins is not a widely recognized category of toxins in this context. Therefore, the recognition of endotoxins and their role in inflammation and toxicity is essential in industrial hygiene and public health, particularly in settings where there is a