loss of viability upon nitrogen starvation loss of viability in G0 A cell population phenotype in which a smaller than normal proportion of cells in the population remains viable after entering G0 phase. FYPO:0006518 midori loss of viability in quiescence 2018-04-25T14:18:53Z Use this term to annotate experiments in which a culture is grown under nitrogen-depleted conditions until cells enter G0, and then the number of cells viable enough to form a colony upon return to conditions supporting vegetative growth is measured and compared to wild type. loss of viability in cell quiescence