They form a symbiotic community, with mutual benefits for all.

Paramecium bursaria, a species of ciliate, has a mutualistic symbiotic relationship with green alga called Zoochlorella.

Paramecium bursaria is a species of ciliates that has a mutualistic endosymbiotic relationship with green algae called Zoochlorella.

Paramecium bursaria", a species of ciliate, has a mutualistic symbiotic relationship with green alga called Zoochlorella.

Further to the addition of partners’ capacities, mutualistic symbiosis expresses certain properties that separate partners do not have.

This mutualistic symbiosis has required the development of adaptation mechanisms between the two partners, forced to adjust to their mutual needs.

This suggests that secreted peptides could contribute to the changes observed in mutualist symbiosis – again highlighting the existence of similarities in mechanisms between mutualist and parasitic symbiosis.