A challenge to claims for mycorrhizal-transmitted wound signaling

Blatt, Michael R.; Draguhn, Andreas; Taiz, Lincoln; Robinson, David G.

doi:10.1080/15592324.2023.2222957

Cited by 4 publications

(4 citation statements)

References 18 publications

(20 reference statements)

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“…It is possible that these voltage spikes may have a biological origin as argued by existing research [38]. However, further evidence is still required to exclude the possible origins being attributed to external disturbances, as criticized in [39,40]. In future work, we will explore this in greater detail by means of cellular level experiments.…”

Section: Voltage Analysismentioning

confidence: 93%

Fungal circuitry: mycelium as a living sensor for smart structures

Ganzeboom,

Zhao,

Dertimanis

et al. 2024

Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2024

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This work explores the sensing potential of mycelium with the intention of incorporating this as an intrinsic sensing mechanism within structural materials. Infrastructure plays a critical role in modern societies with regard to economic productivity, social cohesion, and community well-being. By merging materials that are used for construction, such as concrete with living components, we aim to add intrinsic monitoring mechanisms that could usher in a new era of structural monitoring solutions. Mycelium, the vegetative part of the fungi, has been shown to have an extracellular electrical potential that changes when exposed to various physical and chemical stimuli, making it an ideal candidate for this purpose. In this preliminary investigation, we analyse the electrical behaviour of mycelium exploring its potential use as a sensing material within infrastructure components.

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Section: Voltage Analysismentioning

confidence: 93%

Fungal circuitry: mycelium as a living sensor for smart structures

Ganzeboom,

Zhao,

Dertimanis

et al. 2024

Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2024

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“…[67] At this larger (fruiting body) scale, two types of action potential-like impulses were identified: high frequency (period of 2.6 min) with an average amplitude of 0.88 mV and low frequency (period of 14 min) with an average amplitude of 1.3 mV. [66] Robust experimental setups at the fruiting body scale are challenging and issues with accuracy persist, as described by Blatt et al [110,111] Recommended improvements to experimental methodologies include recognizing the biological origins of voltage transmission and designing experiments around these. Electrode types should also be considered and precautions including noise control or adoption of better techniques, such as intracellular microelectrodes, taken due to the potential for interference from both biological and non-biological sources.…”

Section: Bioelectrical Activity In Fungimentioning

confidence: 99%

“…Measurement of spontaneous extracellular potential at the local level has already been demonstrated, [66,100] but systematic identification of the signaling phenomena is still missing. [111] Measured signals also show high variability, complicating signal interpretation and data extraction. [66,67] The spontaneous signal baseline must be systematically characterized and understood before signal changes in response to environmental stimuli can be accurately detected.…”

Section: Future Work In Fungal Signalingmentioning

confidence: 99%

“…Characterizing the signal baseline requires carefully controlled experiments that do not contain electrical noise from electrodes or conductive media vibrations. [111] Only once the signal baseline has been comprehensively characterized, will the matching of input stimuli to signal response be possible. Experiments to date, Examples of biosensor materials made using fungi.…”

Section: Future Work In Fungal Signalingmentioning

confidence: 99%

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Harnessing Fungi Signaling in Living Composites

Schyck,

Marchese,

Amani

et al. 2024

Global Challenges

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Signaling pathways in fungi offer a profound avenue for harnessing cellular communication and have garnered considerable interest in biomaterial engineering. Fungi respond to environmental stimuli through intricate signaling networks involving biochemical and electrical pathways, yet deciphering these mechanisms remains a challenge. In this review, an overview of fungal biology and their signaling pathways is provided, which can be activated in response to external stimuli and direct fungal growth and orientation. By examining the hyphal structure and the pathways involved in fungal signaling, the current state of recording fungal electrophysiological signals as well as the landscape of fungal biomaterials is explored. Innovative applications are highlighted, from sustainable materials to biomonitoring systems, and an outlook on the future of harnessing fungi signaling in living composites is provided.

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