Radiant spider web like colonies

When we tried to assess the quality of air with settle plate technique we isolated some spider web like colonies. They might be Bacillus mycoides. It is quite amazing that this bacteria has two types of curvature ie., clockwise and counter clockwise. A strain can produce either curvature not both. The direction of curvature can be changed by altering NaCl concentration.




Source and Further reading

http://crf.flib.u-fukui.ac.jp/dspace/bitstream/10461/14980/1/kiyou46.p9-14.pdf

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