Endosymbionts

Endosymbionts are microorganisms that live inside the cells of another organism, forming a symbiotic relationship. This relationship is mutually beneficial for both organisms, in which the endosymbionts provide their host with essential products and services, such as nutrients or protection from pathogens. Endosymbionts play a key role in the evolution of many species, including humans. For example, endosymbionts are responsible for the mitochondria within human cells; these are essential for the production of energy. Endosymbionts are also found in some plants, where they help the plant to absorb nutrients from the environment. In this way, endosymbionts play an essential role in the health and productivity of many organisms.