Abstract
Biological effects induced by hypomagnetic field (HMF) were investigated using g. Bacillus as a model. HMF was found to affect the growth of bacterial population and morphological structure of prokaryotic cells. Cultivation of B. subtilis and B. licheniformis in HMF was characterized by a more active growth and formation of a dense surface film in contrast to a uniform medium turbidity in the geomagnetic field (GMF). Scanning electron microscopy was used to visualize segmentation disorders and morphological modifications of the bacterial cells characterized by changes in the form and size due to, probably, destructive transformation of peptidoglycane. In HMF, sub-inhibiting concentrations of the ultraviolet chemical analog (4-NQO) in the medium have a synergic effect on the microbial growth, and also produce distinct morphological transformations.
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