normal viability in stationary phase normal viability in stationary phase during nitrogen limitation 2015-01-07T16:52:15Z FYPO:0004263 midori normal cell population viability in stationary phase during nitrogen limitation A cell population phenotype in which a normal proportion of cells in the population remains viable after entering stationary phase, under conditions of nitrogen limitation, such as in a medium that contains a low level of NH4Cl and no other nitrogen source. Use this term if you have assayed growth of cells exposed to nitrogen limitation in culture. Note that nitrogen limitation differs from nitrogen starvation in that starvation results from complete absence of nitrogen, whereas limitation results from a shift from high to low nitrogen levels.