Influence of 50-Hz electromagnetic field on anurian (Xenopus laevis) metamorphosis.
In this study, we show the effect of a 1-mT magnetic field AC at 50 Hz on Xenopus laevis tadpole populations. In the course of a 65-day exposure to the field, tadpole survival showed a small, but significant, decrease (p < 0.0004), together with a striking parallel 6-day shift in tadpole maturation frequency and a significant impairment of their metamorphosis. Particularly, metamorphosis was successful for 85% of individuals in the unirradiated tadpole population and for 45% of individuals in the irradiated tadpole population, respectively.
Grimaldi
S
S
Institute Neurobiology and Molecular Medicine, CNR, via del Fosso del Cavaliere, Rome. settimio.grimaldi@artov.inmm.cnr.it
Lisi
A
A
Reiti
S
S
Manni
V
V
Ledda
M
M
Giuliani
L
L
D000818:Animals; D001947:Breeding / Q000379:methods; D004574:Electromagnetic Fields / Q000009:adverse effects*; D004625:Embryo, Nonmammalian / Q000502:physiology / Q000528:radiation effects; D005260:Female; D007814:Larva / Q000528:radiation effects*; D008297:Male; D008675:Metamorphosis, Biological / Q000502:physiology / Q000528:radiation effects*; D011829:Radiation Dosage; D011840:Radiation, Nonionizing / Q000009:adverse effects; D015996:Survival Rate; D014982:Xenopus laevis / Q000502:physiology*