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. 2014 Jan 31;9(1):e87591. doi: 10.1371/journal.pone.0087591

Figure 5. Immunohistochemical localization of transporters in anterior and posterior intestine of tilapia acclimated to different salinities.

Figure 5

Representative micrographs of immunolocalization of Nka (green) with Nkcc/Ncc (red) (a–d, f–h) from FW (a, f), SW (b, g) and HSW (c, h) acclimated tilapia. (d) A representative higher magnification micrograph of Nkcc/Ncc staining of the brush border of enterocytes with basolateral Nka staining from the anterior intestine of SW-acclimated fish. (e) Apical Cftr (red) double labeling with Nka (green) in the anterior intestine of a FW-acclimated fish. Panels (a–e) are sections of anterior intestine (AI) while panels (f–h) are sections of posterior intestine (PI). Sections are counter stained with the nuclear stain DAPI and overlaid with the DIC image for tissue orientation. Scale bar 100 µm (a–c, f–h); 25 µm (d,e).