[Limit of duration of anabiosis in microorganisms]

The extrapolation of data obtained at high temperatures which are used for sterilization shows that the energy of heat excitation must limit the extreme duration of anabiosis to 10(4)-10(5) years at conventional temperatures for the most resistant forms of microorganisms. The span of time within which these forms survive can be limited due to racemization of amino acids and low thermostability of some of them.