Low‐level, magnetic‐field‐induced growth modification of  Bacillus subtilis | Zendy

Ramon Ceon | Zendy; Martin J. T. | Zendy; Powell M. R. | Zendy

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Low‐level, magnetic‐field‐induced growth modification of Bacillus subtilis

Author(s) -

Ramon Ceon,

Martin J. T.,

Powell M. R.

Publication year - 1987

Publication title -

bioelectromagnetics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.435

H-Index - 81

eISSN - 1521-186X

pISSN - 0197-8462

DOI - 10.1002/bem.2250080306

Subject(s) - bacillus subtilis , scanning electron microscope , magnetic field , biophysics , bacillaceae , electron microscope , mutant , chemistry , microbiology and biotechnology , biology , bacteria , optics , biochemistry , physics , genetics , quantum mechanics , gene

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.

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