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Influence of non-thermic AC magnetic fields on spore germination in a dimorphic fungus

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Summary

The influence of weak pulsed magnetic fields of low frequencies on the germination rate ofMycotypha africana was tested. This fungus grows as a mycelium (M-culture) or in a yeast-like form (Y-culture) depending upon culture conditions. 5 h and 24 h of field application enhanced the germination rate in a Y-culture up to 2 or 3 times at low intensity levels and decreased it up to a factor 4 at the intensity level “4”. M-cultures exhibited the same reaction pattern after 5 h exposition and no effect after 24 h exposition. The Y/M ratio is shifted by low field intensities towards the Y-form. The occurence of stimulation as well as retardation by neighbouring intensities is discussed.

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References

  • Aarholt E, Flinn EA, Smith CW (1981) Effects of low-frequency magnetic fields on bacterial growth rate. Phys Med Biol 26:613–621

    Google Scholar 

  • Aldrich TE, Easterly CE (1987) Electromagnetic fields and public health. Env Health Persp 75:159–171

    Google Scholar 

  • Ali HM, Kolkenbrock HJ, Sörensen H, Merker HJ, Buchlow G, Ulbrich N, Hauer RW (1989) Einfluß der elektromagnetischen Felder auf die Enzymaktivität der rheumatischen Synoviazellen in vitro. J Rheumatol (in press)

  • Bassett CA, Pawluk RJ, Pilla AA (1974) Augmentation of bone repair by inductively-coupled electromagnetic fields. Science 184:575–577

    Google Scholar 

  • Bawin SM, Adey WR, Sabbot IM (1978) Ionic factors in release of45Ca2+ from chicken cerebral tissue by electromagnetic fields. Proc Natl Acad Sci USA 73:6314–6318

    Google Scholar 

  • Bellossi A, Desplaces A, Morin R (1988) Effect of a pulsed magnetic field on tumoral C3H/Bi female mice. Cancer Biochem Biophys 10:59–66

    Google Scholar 

  • Bernhardt JH (1988) The establishment of frequency dependent limits for electric and magnetic fields and evaluation of indirect effects. Radiat Environ Biophys 27:1–27

    Google Scholar 

  • Blackman CF, Benane SG, Rabinowitz JR, House DE, Joines WT (1985) A role for the magnetic field in the radiation-induced efflux of calcium ions from brain tissue in vitro. Bioelectromagnetics 6:327–337

    Google Scholar 

  • Borst-Pauwels GWFH (1981) Ion transport in yeast. Biochem Biophys Acta 650:88–127

    Google Scholar 

  • Cadossi A, Ceccherelli GB, Emilia G, Torelli G, Ruggieri MP, Bersani F, Cossarizza A, Franceschi C (1988) The effects of low frequency pulsing electromagnetic fields on the response of human lymphocytes to lectins. Changes at different values of induced electrical tension. Bioelectrochem Bioenerg 19:315–322

    Google Scholar 

  • Cossarizza A, Monti D, Bersani F, Cantini M, Cadossi R, Sacchi A, Franceschi C (1989) Extremely Low Frequency pulsed electromagnetic fields increase cell proliferation in lymphocytes from young and aged subjects. Biochem Biophys Res Commun 160:692–698

    Google Scholar 

  • Date M, Kaneko I, Fukada E (1986) Pulse magnetic stimulator for biological systems. Scient Papers Inst Phys Chem Res 80:11–16

    Google Scholar 

  • Dihel LE, Smith-Sonneborn J, Middaugh CR (1985) Effects of an extremely low frequency electromagnetic field on the cell division rate and plasma membrane ofParamecium tetraurelia. Bioelectromagnetics 6:61–71

    Google Scholar 

  • Falugi C, Grattarola M, Prestipino G (1987) Effects of low-intensity pulsed electromagnetic fields on the early development of sea urchins. Biophys J 51:999–1003

    Google Scholar 

  • Goodman EM, Sharpe PT, Greenebaum B, Marron MT (1986) Pulsed magnetic fields alter the cell surface. FEBS Lett 199:275–278

    Google Scholar 

  • Grattarola M, Chiabrera A, Viviani R, Pardi G (1985) Interactions between weak electromagnetic fields and biosystem: a summary of nine years of research. Bioelectricity 4:211–225

    Google Scholar 

  • Halle B (1988) On the cyclotron resonance mechanism for magnetic field effects on transmembrane ion conductivity. Bioelectromagnetics 9:381–385

    Google Scholar 

  • Jafary-Asl AH, Solanki SN, Aarholt E, Smith CW (1982) Dielectric measurements on live biological materials under magnetic resonance conditions. J Biol Phys 11:15–22

    Google Scholar 

  • Kavet RI, Banks RS (1986) Emerging issues in extremely-low-frequency electric and magnetic field health research. Env Res 39:386–404

    Google Scholar 

  • Luben RA, Cain CD, Chen MCY, Rosen DM, Adey WR (1982) Effects of electromagnetic stimuli on bone and bone cells in vitro: Inhibition of responses to parathyroid hormone by low-energy low-frequency fields. Proc Natl Acad Sci USA 79:4180–4184

    Google Scholar 

  • Malter M, Schriever G, Kühnlein R, Süss R (1987) Tumoricidal cells increased by pulsating magnetic field. Anticancer Res 7:391–394

    Google Scholar 

  • Marron MT, Goodman EM, Sharpe PT, Greenebaum B (1988) Low frequency electric and magnetic fields have different effects on the cell surface. FEBS Lett 230:13–16

    Google Scholar 

  • Ottam V, De Pasquale V, Govoni P, Franchi M, Zaniol P, Ruggeri A (1988) Effects of pulsed extremely-low-frequency mangetic fields on skin wounds in the rat. Bioelectromagnetics 9:53–62

    Google Scholar 

  • Phillips JL, Winters WD, Rutledge L (1986) In vitro exposure to electromagnetic fields: changes in tumour cell properties. Int J Radiat Biol 49:463–469

    Google Scholar 

  • Ramon C, Martin JT, Powell MR (1987) Low-level, magnetic-field-induced growth modification ofBacillus subtilis. Bioelectromagnetics 8:275–282

    Google Scholar 

  • Rosenthal M, Obe G (1989) Effects of 50-Hertz electromagnetic fields on proliferation and on chromosomal alterations in human peripheral lymphocytes untreated or pretreated with chemical mutagens. Mutat Res 210:329–335

    Google Scholar 

  • Rubin CT, McLeod KJ, Lanyon LE (1989) Prevention of osteoporosis by pulsed electromagnetic fields. J Bone Joint Surg 71A:411–417

    Google Scholar 

  • Wittekindt E, Lamprecht I, Kraepelin G (1989) DC electric fields induce polarization effects in the dimorphic fungusMycotypha africana. Endocytobiosis Cell Res 6:41–56

    Google Scholar 

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Wittekindt, E., Broers, D., Kraepelin, G. et al. Influence of non-thermic AC magnetic fields on spore germination in a dimorphic fungus. Radiat Environ Biophys 29, 143–152 (1990). https://doi.org/10.1007/BF01210559

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  • DOI: https://doi.org/10.1007/BF01210559

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