Abstract
Responses of the small heat shock protein gene, hsp-16, were examined in transgenic Caenorhabditis elegans exposed to extremly low frequency magnetic fields (ELFMFs). Expression of the hsp-16-lacZ gene was enhanced when transgenic animals were exposed to magnetic fields up to 0.5 T at 60 Hz. The hsp-16 promoter was more efficiently expressed at the embryonic than at the post-embryonic stage irrespective of exposure. Promoter activity was more sensitive to the stimulus in the intestine at the post-embryonic stage. Evidence is presented that the induction occurs at the transcriptional step of hsp-16.
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