Page "Communication" Paragraph 35

Fungi communicate to coordinate and organize their growth and development such as the formation of mycelia and fruiting bodies.

Fungi communicate with their own and related species as well as with nonfungal organisms in a great variety of symbiotic interactions, especially with bacteria, unicellular eukaryotes, plants and insects through semiochemicals of biotic origin.

The semiochemicals trigger the fungal organism to react in a specific manner, while if the same chemical molecules are not part of biotic messages, they do not trigger the fungal organism to react.

This implies that fungal organisms can differentiate between molecules taking part in biotic messages and similar molecules being irrelevant in the situation.

So far five different primary signalling molecules are known to coordinate different behavioral patterns such as filamentation, mating, growth, and pathogenicity.

Behavioral coordination and production of signalling substances is achieved through interpretation processes that enables the organism to differ between self or non-self, abiotic indicator, biotic message from similar, related, or non-related species, and even filter out " noise ", i. e. similar molecules without biotic content.