Fungal photosensors

Beasley, Alexander E.; Powell, Anna L.; Adamatzky, Andrew

doi:10.48550/arxiv.2003.07825

Cited by 7 publications

(8 citation statements)

References 27 publications

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“…In [20] we proposed to develop a structural substrate by using live fungal mycelium, functionalise the substrate with nanoparticles and polymers to make mycelium-based electronics [21,22,23], implement sensorial fusion and decision making in the mycelium networks [24] and to grow monolithic buildings from the functionalised fungal substrate [25]. Fungal buildings would self-grow, build, and repair themselves subject to substrate supplied, use natural adaptation to the environment, sense all that humans can sense.…”

Section: Introductionmentioning

confidence: 99%

“…On our venture to investigate sensing properties of the mycelium composite blocks, called 'fungal blocks' further, we decided to study how large fungal blocks respond to pressure via changes in their electrical activity. The electrical activity have been chosen as indicator because fungi are known to respond to chemical and physical stimuli by changing patterns of their electrical activity [26,27,28] and electrical properties [23]. In Sect.…”

Section: Introductionmentioning

confidence: 99%

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Living mycelium composites discern weights

Adamatzky,

Gandia

2021

Preprint

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Fungal construction materials -substrates colonised by mycelium -are getting increased recognition as viable ecologically friendly alternatives to conventional building materials. A functionality of the constructions made from fungal materials would be enriched if blocks with living mycelium, known for their ability to respond to chemical, optical and tactile stimuli, were inserted. We investigate how large blocks of substrates colonised with mycelium of Ganoderma resinaceum respond to stimulation with heavy weights. We analyse details of the electrical responses to the stimulation with weights and show that ON and OFF stimuli can be discriminated by the living mycelium composites and that a habituation to the stimulation occurs.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Living mycelium composites discern weights

Adamatzky,

Gandia

2021

Preprint

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“…This is because living mycelium networks are active, i.e. they generate spikes of electrical potential [5] and spikes of resistance [7], capacitive [12] and memfractive properties [13].…”

Section: Discussionmentioning

confidence: 99%

Logics in fungal mycelium networks

Adamatzky¹,

Ayres²,

Beasley³

et al. 2021

Preprint

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The living mycelium networks are capable of efficient sensorial fusion over very large areas and distributed decision making. The information processing in the mycelium networks is implemented via propagation of electrical and chemical signals en pair with morphological changes in the mycelium structure. These information processing mechanisms are manifested in experimental laboratory findings that show that the mycelium networks exhibit rich dynamics of neuron-like spiking behaviour and a wide range of non-linear electrical properties. On an example of a single real colony of Aspergillus niger, we demonstrate that the non-linear transformation of electrical signals and trains of extracellular voltage spikes can be used to implement logical gates and circuits. The approaches adopted include numerical modelling of excitation propagation on the mycelium network, representation of the mycelium network as a resistive and capacitive (RC) network and an experimental laboratory study on mining logical circuits in mycelium bound composites.

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“…In our previous studies, we reported that the oyster fungi Pleurotus djamor exhibit trains of electrical potential spikes similar to action potential spikes [4,5,6,7]. Our initial assumption was that spike trains might reflect increasing mycelium propagation in the substrate, nutrient and metabolite transport, and communication processes within the mycelium network.…”

Section: Introductionmentioning

confidence: 98%

On stimulating fungi $Pleurotus~ostreatus$ with Cortisol

Dehshibi,

Chiolerio,

Nikolaidou

et al. 2021

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Fungi cells are capable of sensing extracellular cues through reception, transduction and response systems which allow them to communicate with their host and adapt to their environment. They display effective regulatory protein expressions which enhance and regulate their response and adaptation to a variety of triggers such as stress, hormones, light, chemicals and host factors. In our recent studies, we have shown that Pleurotus oyster fungi generate electrical potential impulses in the form of spike events as a result of their exposure to environmental, mechanical and chemical triggers, demonstrating that it is possible to discern the nature of stimuli from the fungi electrical responses. Harnessing the power of fungi sensing and intelligent capabilities, we explored the communication protocols of fungi as reporters of human chemical secretions such as hormones, addressing the question if fungi can sense human signals. We exposed Pleurotus oyster fungi to cortisol, directly applied to a surface of a hemp shavings substrate colonised by fungi, and recorded the electrical activity of fungi. The response of fungi to cortisol was also supplementary studied through the application of X-ray to identify changes in the fungi tissue, where receiving cortisol by the substrate can inhibit the flow of calcium and, in turn, reduce its physiological changes. This study could pave the way for future research on adaptive fungal wearables capable for detecting physiological states of humans and biosensors made of living fungi.

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Fungal photosensors

Cited by 7 publications

References 27 publications

Living mycelium composites discern weights

Living mycelium composites discern weights

Logics in fungal mycelium networks

On stimulating fungi $Pleurotus~ostreatus$ with Cortisol

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