Fig. 2

Local cell proliferation rate (LCPR, cells/mm) in roots exposed to simulated microgravity, simulated Moon partial gravity (0.17 g RPMHW and RPMSW) and 1 g static control. Three Arabidopsis lines were used, a Wildtype (Col 0), b mutant nucL1, and c mutant nucL2. Statistically significant differences vs. 1 g static control (p < 0.05) indicated with *, average n = 4