Wednesday, 6 April 2022

Fungal Fancies?

There has been much recent interest in the possibility that fungi communicate (with each other and associated plants), by passing 'electrical' signals along their hyphae (the long, underground filaments that are the real manifestations of these organisms). Professor Adam Adamatzky (University of the West of England) claims these electrical signals have patterns that have a 'striking similarity to human speech' (https://www.theguardian.com/science/2022/apr/06/fungi-electrical-impulses-human-language-study ). Adamatzky recorded from electrodes placed in fungal hyphae. He was especially impressed by some of the complex signals generated by fungi feeding on decaying wood. Adamatzky seems to suggest it was almost as if other fungi were being invited to the feast. Communication is fundamental and occurs in many areas of biology. The components of multicellular organisms must communicate to survive. They generally do so by means of chemical signals. Adamatzky's studies are very interesting but are a long way from demonstrating that fungi 'talk to each other'. Comparing fungal electrical signals and human speech, seems to me, more like an analogy rather than a demonstration of similarity. We, as yet, also don't know too much about fungal communication. The possibility exists that the passage of electrical signals in hyphae is more like chemical communication in the human body. Do fungi have a 'concept' of self? Can the hyphae actually be regarded as belonging to 'different' fungi? If this is not the case, the wood-eating fungus is essentially 'talking to itself'. It might be saying 'Get in there!'

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