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Propagation of electrical spike trains in substrates colonised by oyster fungi.

Overview

Authors: Andrew Adamatzky1
  1. Unconventional Computing Laboratory at UWE Bristol, Frenchay Campus, Bristol, BS16 1QY UK
Institutions: University of the West of England (United Kingdom)
Journal: Scientific reports, volume 16, issue 1, article 16332
Dates: received 17 December 2025; accepted 29 March 2026; published online 4 April 2026
Type: Research article · Language: English
License: CC BY
Identifiers: DOI 10.1038/s41598-026-47035-2 · PMID 41935231 · PMCID PMC13212958 · OpenAlex W7149580682
Open access: gold, a free copy (OpenAlex)
Status: data only
Categories: cellular / molecular (subfield)
Methods: Preprocessing, Single-unit activity, calcium imaging
Keywords: Fungi, Electrical activity, Ionic waves, Spikes, Biological techniques, Biophysics, Neuroscience
MeSH: Electrophysiological Phenomena*, Fungi*, Ostreidae*, Animals (* major topic)
Topic: Plant and Biological Electrophysiology Studies (Plant Science, Agricultural and Biological Sciences), according to OpenAlex
Funding: Horizon 2020 Framework Programme (858132)
Citations: not cited yet (Europe PMC); 29 references in the paper

Abstract

We investigate electrical signalling in substrates colonised by oyster fungi using long-term, multi-channel electrophysiological recordings. Electrical activity was recorded continuously for approximately fifteen days using a linear array of eight differential electrode channels sampled at 1 Hz. Slow electrical spikes with durations from tens of seconds to tens of minutes and millivolt-scale amplitudes were identified, and spike trains exhibited highly variable inter-spike intervals on time scales of minutes to hours. Analysis of temporal relationships between channels reveals directional propagation of electrical activity along the electrode array, with delay distributions between adjacent channels showing pronounced positive peaks and a monotonic lead–lag ordering across channels. Median delays of approximately 180 s between channels separated by approximately 2 cm correspond to an estimated propagation speed of about 0.7 cm/min (approximately 40 cm/h). Control analyses using temporally shuffled spike trains indicated its biological origin. These results demonstrate that electrical activity in oyster fungi propagates through the mycelial network as slow travelling signals consistent with ionic wave dynamics.

Reproduced under the paper's license (CC BY), from the paper cited above.

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Data

Datasets cited

Data availability

Data are available at 10.5281/zenodo.4430968

Reproduced under the paper's license (CC BY), from the paper cited above.

Versions

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Version 1, 28 September 2026: the first record

Recorded: type, language, journal, volume, issue, pages, dates, 1 author, 7 keywords, 4 MeSH terms, 1 funder, 15 references.

Cite

This paper

Adamatzky, A. (2026). Propagation of electrical spike trains in substrates colonised by oyster fungi. Scientific reports, 16(1), 16332. https://doi.org/10.1038/s41598-026-47035-2

BibTeX

@article{adamatzky2026propagation,
author = {Adamatzky, Andrew},
title = {{Propagation of electrical spike trains in substrates colonised by oyster fungi}},
journal = {Scientific reports},
year = {2026},
month = apr,
volume = {16},
number = {1},
pages = {16332},
publisher = {Nature Publishing Group},
issn = {2045-2322},
doi = {10.1038/s41598-026-47035-2},
url = {https://doi.org/10.1038/s41598-026-47035-2},
pmid = {41935231},
pmcid = {PMC13212958}
}

RIS

TY - JOUR
AU - Adamatzky, Andrew
TI - Propagation of electrical spike trains in substrates colonised by oyster fungi
T2 - Scientific reports
J2 - Sci Rep
PY - 2026
DA - 2026/04/04
VL - 16
IS - 1
SP - 16332
SN - 2045-2322
PB - Nature Publishing Group
DO - 10.1038/s41598-026-47035-2
UR - https://doi.org/10.1038/s41598-026-47035-2
LA - en
ER -

CSL-JSON

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