Fig. 7
From: Shared regulatory function of non-genomic thyroid hormone signaling in echinoderm skeletogenesis

MAPK and T4-binding site distribution in Pisaster ochraceus larva (bipinnaria). Larvae were exposed for 90 min prior to fixation. Bipinnaria was stained with Hoechst 33342 (blue; nuclei), rhodamine-conjugated T4 (red; T4-binding sites), and an antibody for phosphorylated MAPK (green, P-MAPK). A Maximum intensity projection of confocal fluorescent image of P.o. bipinnaria. B-B″’ Focal slice of midgut wall. C–C″’ Focal slice showing ventral view of midgut wall