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Low-level, magnetic-field-induced growth modification of Bacillus subtilis (1987)

Ramon, Ceon ; Martin, J. T. ; Powell, M. R.

New York, NY [u.a.] : Wiley-Blackwell

Bioelectromagnetics 8 (1987), S. 275-282

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ISSN: 0197-8462

Keywords: ELF ; field effects ; bacteria ; growth enhancement ; pulsed magnetic fields ; Life and Medical Sciences ; Occupational Health and Environmental Toxicology

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Biology , Physics

Notes: Experimental studies showed an increase in the growth of Bacillus subtilis mutant strain FJ7 above controls by exposing the bacterial culture to 800-Hz or 1-KHz magnetic fields with a 2-s-on /2-s-off period. The magnetic field strength was between 0.8 and 2. 5 mT. Light microscopy and scanning electron microscopy demonstrated the morphology of controls to grow in a macrofiber of right-handed helix formation. In contrast, the field-exposed group showed little to no cohesion; the cells appeared to be homogeneously distributed throughout the sample. These results suggest that growth patterns of Bacillus subtilis can be altered as a result of magnetic-field-induced effects.

Additional Material: 3 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/bem.2250080306

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