Survival and life span of Drosophila melanogaster in response to terahertz radiation
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Life span control is realized by the interaction of many genetic factors with the environment. Due to the development of modern technologies based on nonionized terahertz radiation (0.1–10 THz), the investigation of the influence of this radiation on living organisms is urgent. In our study, the effects of terahertz radiation on the survival and lifespan of the Oregon R line of Drosophila melanogaster were multidirectional, depending on the age of the insects. The terahertz effect on survival was negative or neutral in early life and positive in later life. In the drosophila response to terahertz radiation, sex differences were manifested. Males were not very sensitive to terahertz radiation. The survival of irradiated females increased significantly in the second half of the imago life. Irradiation of the drosophila did not significantly affect mean and maximal values of lifespan, but the gap between the values of the mean lifespans of males and females in this group of insects was increased. The mechanisms for the effects of terahertz radiation on survival and lifespan might be associated with changes in the cellular membrane, gene expression, and signaling pathways controlling these features.
Keywordslifespan terahertz radiation stress sex differences drosophila
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