Effects of time-variant extremely low-frequency (ELF) electromagnetic fields (EMF) on cholinesterase activity in Dictyostelium discoideum (Protista).
Recently, we detected propionylcholinesterase (PrChE) activity in single-cell amoebae of Dictyostelium discoideum using cytochemical, electrophoretic, and spectrophotometric methods. The involvement of this enzyme activity in cell-cell and cell-environment interactions was suggested. In this work, we found that exposure of single-cell amoebae to an extremely low-frequency electromagnetic fields (ELF-EMF) of 300 microT, 50 Hz, from 1 h up to 48 h at 21 +/- 1 degrees C affected PrChE activity.
Amaroli
Andrea
A
Department for the Study of the Territory and its Resources, Corso Europa 26, I-16132 Genoa, Italy.
Trielli
Francesca
F
Bianco
Bruno
B
Giordano
Stefano
S
Moggia
Elsa
E
Corrado
Maria U Delmonte
MU
D000818:Animals; D002802:Cholinesterases / Q000378:metabolism*; D004023:Dictyostelium / Q000201:enzymology*; D004574:Electromagnetic Fields; D013997:Time Factors
C025181:propionylcholinesterase; D002802:Cholinesterases