Protease-Induced Multicell Formation in Staphylococcus haemolyticus
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Multicellular cells were efficiently induced in <i>Staphylococcus haemolyticus</i> by the addition of protease to exponentially growing cultures at 30C. Electron microscopy revealed the formation of tetrad-shaped multicells that were septated but not separated from each other. Incubation of the multicells with extract from the cells grown without protease resulted in a fourfold increase in the number of colony-forming units as compared with the untreated control. An electrophoretic analysis showed that protease caused a loss of cell wall-lytic activity of the cell, which possibly led to the formation of multicells through cessation of cross wall separation.
- Japanese Journal of Microbiology
Japanese Journal of Microbiology 41(10), 799-803, 1997-10-20
Center For Academic Publications Japan