2012, № 10 (146)

Vasilchenko A.S., Yarullina D.R., Nikiyan H.N., Teslya A.V. MORPHOLOGICAL AND FUNCTIONAL CHARACTERISTICS OF THE BACTERIA BACILLUS CEREUS AT VARIOUS STAGES OF THE LIFE CYCLEUsing atomic force microscopy (AFM) the life cycle of spore-forming Gram-positive organisms Bacillus cereus IP 5832 was investigated. The morphological and mechanical changes of single bacterial cells by their long-term culturing were described. It is shown decreasing the number of viable cells at the 5 day of cultivation and no viable cells in bacterial population at 15 day. In this case, the presence of spores which are morphologically differentiated forms of resting cells was revealed by AFM.Key words: atomic force microscopy, life cycle, mechanical properties, bacterial cells, long-term culturing.

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About this article

Authors: Nikiyan A.N., Vasilchenko A.S., Yarullina D.R., Teslya A.V.

Year: 2012

Editor-in-chief

Sergey Aleksandrovich
MIROSHNIKOV

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