Aging of prokaryotic organisms

摘要: Until recently it was thought that aging is a characteristic feature only of cells and organisms eukaryotic origin. Recent studies on Caulobacter crescentus showed their dimorphic life cycle associated with asymmetric cell division leads to gradual increase in the time needed for development new bacteria generations, which may reflect this organism. Moreover, as shown Escherichia coli, accelerated exhaustion proliferative capacity death are caused by inheritance certain structures from mother during division. A similar phenomenon, called 'conditional senescence', has been observed stationary phase growth liquid cultures. The aim paper present current state knowledge causes, mechanisms evolutionary significance bacteria. Some issues bacterial will be discussed context phenomena occurring cells.