Bacillus subtilis physiological role

The physiological role of PHB/polyP complexes has not been established, but bacterial cells like eukaryotic cells maintain low internal Ca2+,101-103,112 and there is increasing evidence pointing to calcium involvement in a number of important cellular functions, such as chemotaxis, cell division, heat shock, pathogenicity, and differentiation.104-107 Systems for calcium export have been identified.108-109 Mechanisms for calcium entry are less well known. An L-type channel was reported in Bacillus subtilis,n0 lu and Jones et al. and Holland et al.103,112 recently demonstrated the presence of a putative Ca2+ influx channel in stationary phase E. coli,... 

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