Influence of 60-Hz magnetic fields on sea urchin development

Journal Article · Mon Jan 01 00:00:00 EST 1990 · Bioelectromagnetics (New York); (USA)

DOI:https://doi.org/10.1002/bem.2250110106· OSTI ID:6713867

Zimmerman, S; Zimmerman, A M; Winters, W D; Cameron, I L ^[1]

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1. York Univ., Toronto, Ontario (Canada)

Continuous exposure of sea urchin (Strongylocentrotus purpuratus) embryos at 18 degrees C to a cyclic 60-Hz magnetic field at 0.1 mT rms beginning 4 min after insemination caused a significant developmental delay during the subsequent 23 hours. No delay in development was recorded for periods up to 18 hours after fertilization. At 18 h, most embryos were in the mesenchyme blastula stage. At 23 h, most control embryos were in mid-gastrula whereas most magnetic-field-exposed embryos were in the early gastrula stage. Thus an estimated 1-h delay occurred between these developmental stages. The results are discussed in terms of possible magnetic-field modification of transcription as well as interference with cell migration during gastrulation. The present study extends and supports the growing body of information about potential effects of exposures to extremely-low-frequency (ELF) magnetic fields on developing organisms.

• OSTI ID: 6713867
• Journal Information: Bioelectromagnetics (New York); (USA), Vol. 11:1; ISSN 0197-8462
• Country of Publication: United States
• Language: English

Related Subjects

63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ELECTROMAGNETIC FIELDS
BIOLOGICAL EFFECTS
EMBRYOS
SENSITIVITY
SEA URCHINS
ONTOGENESIS
CELL DIVISION
ELECTROMAGNETIC RADIATION
TRANSCRIPTION
ANIMALS
AQUATIC ORGANISMS
ECHINODERMS
INVERTEBRATES
RADIATIONS
560400* - Other Environmental Pollutant Effects