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Vol. 16, Art. 102 (pp. 1161-1170)    |    2015       

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Influence of red light on the regeneration rate of planarians

Ermakov A.M.1, Ermakova O.N.1, Manokhin A.A.2, Nikitina E.V.1, Khramov R.N.1

1Federal State Budget Organization of Science, Institute of Theoretical and Experimental
Biophysics, Russian Academy of Sciences, 142290, Pushchino, Russia, Institutskaya 3
2Federal State Budget Organization of Science, Institute of Cell Biophysics RAS,

Brief summary

It has been shown that a single irradiation of planarians by monochromatic red light from the LED array (λmax = 635 nm) in varying degrees increases the rate of growth of the head blastema of planarians, depending on the radiation dose. Maximum stimulation of regeneration observed at doses of 197.1 - 219 mJ / cm2. By increasing or decreasing the dose of light exposure the effect size decreases, up to its total absence. After changing the exposure time interval - before or after decapitation of planarians observed inversion of light effect. Instead of the stimulation we observed an inhibition of blastema growth. Broadband red light irradiation (600 - 750 nm) had no effect on the rate of planarian head regeneration.


Key words

low-intensity light irradiation, red light, LED, planarian, regeneration.

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