Planarians Sense Simulated Microgravity and Hypergravity

Figure 6

Planarian embryos develop in simulated microgravity (RPM 60°/s) and in hypergravity (3 g) environments. (a) Image of a planarian cocoon and a hatchling planarian. (b) Immunohistochemical analysis of planarian hatchlings corresponding to all conditions tested shows their normal morphology (see the nervous system stained with anti-α-tubulin, in green, and the pharynx and brain stained with DAPI, in blue). White arrows indicate the brain and yellow asterisk indicates the pharynx. (c) Quantification of the pH3 shows no significant differences in the mitotic rates among the different groups. Data were analyzed by Student’s -test. Differences are considered significant at .