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Photon emission during cleavage of frog eggs
1Deparment of Physiology, School of Medicine, Kitasato University, Kanagawa, Japan.
Photochemistry and Photobiology
|October 1, 1992
Summary
Scientists detected light emission from frog embryos during early development. This bioluminescence, measured in Rana japonica, occurred at the start of the first cleavage stage.
Area of Science:
- Developmental Biology
- Biophysics
Background:
- Early embryonic development involves complex cellular processes.
- Bioluminescence, the emission of light by living organisms, is observed in various species.
Purpose of the Study:
- To investigate the phenomenon of light emission from frog embryos during early cleavage.
- To quantify the intensity of this light emission.
Main Methods:
- Utilized photon counting techniques.
- Employed an analog separation method to measure integrated photons.
Main Results:
- Successfully detected light emission from the surface of frog embryos (Rana japonica).
- Observed light emission during the early cleavage stages.
- Measured light emission exceeding 5.6 x 10(-19) W at the onset of the first cleavage.
Conclusions:
- Frog embryos exhibit bioluminescence during early developmental stages.
- The detected light emission suggests a previously uncharacterized biophysical process in early embryogenesis.