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Related Experiment Videos

Stress-induced photon emission from perturbed organisms.

J Slawinski1, A Ezzahir, M Godlewski

  • 1Department of Biophysics, Pedagogical University, Krakow, Poland.

Experientia
|December 1, 1992
PubMed
Summary

This study reveals how biological systems, including yeast and spermatozoa, exhibit ultraweak luminescence under stress. New findings show white light and formaldehyde can enhance this luminescence, offering insights into cellular responses.

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Area of Science:

  • Biophysics
  • Cell Biology
  • Biochemistry

Background:

  • Ultraweak luminescence is a known biological phenomenon.
  • Previous research has explored luminescence under various stresses.
  • The specific effects of white light and formaldehyde on yeast and spermatozoa luminescence were not well-documented.

Purpose of the Study:

  • To review and present findings on the ultraweak luminescent response of biological systems to stress.
  • To investigate the novel enhancing effects of white light and formaldehyde on yeast and spermatozoa.
  • To explore stochastic models for non-stationary photon emission and relate luminescence to homeostasis.

Main Methods:

  • Review of existing literature on ultraweak luminescence in plants, insects, and spermatozoa.

Related Experiment Videos

  • Experimental observation of luminescence in yeast and spermatozoa under different stress conditions (mechanical, thermal, chemical, photochemical).
  • Application of stochastic models, specifically Integrated Moving Average (IMA) (0, 1, 1), to analyze photon emission patterns.

    • Main Results:

    • Ultraweak luminescence was observed in response to mechanical, thermal, chemical, and photochemical stress.
    • White light and formaldehyde were found to enhance ultraweak luminescence in yeast and spermatozoa.
    • Increased reaction time correlated with a higher percentage of long wavelengths (> 600 nm) in luminescence.
    • Vitality and motility of bull spermatozoa and yeast cells were reduced by white light, water, formaldehyde, and iron ions.
    • Delayed luminescence intensity increased with successive white light irradiation of bull spermatozoa.
    • Stochastic models were applied to describe non-stationary photon emission and cellular perturbation.

    Conclusions:

    • Ultraweak luminescence serves as a sensitive indicator of stress and perturbation in biological systems.
    • White light and formaldehyde represent novel factors that can modulate ultraweak luminescence.
    • The observed luminescence patterns can be modeled using stochastic processes, providing a quantitative framework for understanding cellular responses.
    • Ultraweak luminescence is linked to disruptions in cellular homeostasis, offering potential for diagnostic applications.