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Fig. 5. Distribution of NKCC during the ontogeny of Dicentrarchus labrax.
(A-F) Longitudinal section (A) and transverse sections (B-D) of 30-day-old
larvae; (A) Predominant basolateral staining in branchial filamentary and
opercular chloride cells (CC) (longitudinal section). (A') Larger
magnification of a CC showing that the apical pit (arrow) presents no or weak
immunostaining. (B,C,D,D',E,F) Apical immunostaining of the anterior (B)
and posterior (C,D) intestine (I), of the collecting ducts (CD) and of the
dorsal part of the urinary bladder (UB) (D,D',E,F). CT, collecting
tubule; F, filament; L, lamellae; M, muscle; TI, tegumentary ionocyte. Scale
bars, 5 µm (A'), 10 µm (A), 15 µm (D'), 20 µm
(B,C,E,F), 50 µm (D).