Abstract

Irradiation of the inoculum with 50 Hz frequency electromagnetic field for 3 h practically did not influence the growth of suspension culture of one-celled green algae Dunaliella tertiolecta and Tetraselmis viridis. The irradiation for 4 h led to approximately 30% reduction of growth. After 6-hour irradiation the growth of Dunaliella tertiolecta was reduced by 50% and the growth of Tetraselmis viridis was reduced by 70%. The irradiation of hydras for 3 h showed no visible effect. The irradiation for 4 h stimulated a little the growth and regeneration of injured hydras. The effect of 24 h irradiation resulted in the shortening of lifetime of uninjured and injured hydras. The effect of regeneration was not observed.

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