3.8 Article

Stimulating Fungi Pleurotus ostreatus with Hydrocortisone

期刊

ACS BIOMATERIALS SCIENCE & ENGINEERING
卷 7, 期 8, 页码 3718-3726

出版社

AMER CHEMICAL SOC
DOI: 10.1021/acsbiomaterials.1c00752

关键词

fungi; hydrocortisone; biosensor; electrical activity

资金

  1. European Union's Horizon 2020 research and innovation programme FET OPEN Challenging current thinking [858132]

向作者/读者索取更多资源

Fungi cells can sense extracellular signals through reception, transduction, and response mechanisms, generating electrical impulses in response to environmental, mechanical, and chemical triggers. They exhibit the ability to adapt to their environment and communicate with their host. Studies have shown that fungi can sense human chemical secretions like hormones, with reactions to hydrocortisone affecting their physiological changes.
Fungi cells can sense extracellular signals via reception, transduction, and response mechanisms, allowing them to communicate with their host and adapt to their environment. They feature effective regulatory protein expressions that enhance and regulate their response and adaptation to various triggers such as stress, hormones, physical stimuli such as light, and host factors. In our recent studies, we have shown that Pleurotus oyster fungi generate electrical potential impulses in the form of spike events in response to their exposure to environmental, mechanical, and chemical triggers, suggesting that the nature of stimuli may be deduced from the fungal electrical responses. In this study, we explored the communication protocols of fungi as reporters of human chemical secretions such as hormones, addressing whether fungi can sense human signals. We exposed Pleurotus oyster fungi to hydrocortisone, which was directly applied to the surface of a fungal-colonized hemp shavings substrate, and recorded the electrical activity of the fungi. Hydrocortisone is a medicinal hormone replacement that is similar to the natural stress hormone cortisol. Changes in cortisol levels released by the body indicate the presence of disease and can have a detrimental effect on physiological process regulation. The response of fungi to hydrocortisone was also explored further using X-rays to reveal changes in the fungi tissue, where receiving hydrocortisone by the substrate can inhibit the flow of calcium and, as a result, reduce its physiological changes. This research could open the way for future studies on adaptive fungal wearables capable of detecting human physiological states and biosensors built of living fungi.

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