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Representative images of sea bass gastric mucosa. α-transducin-immunoreactivity (Gαtran-IR) (a, c, e and g) colocalised with 5-hydroxytryptamine (5-HT) (b), obestatin (OB) (d), ghrelin (GHR) (f) and α-gustducin (Gαgust) (h) (arrows) immunoreactivity in the basal portion of the gastric gland and in the epithelial lining of the mucosal folds. Arrowheads in a, b, c and d indicate 5-HT- and OB-IR (b and d) cells negative for Gαtran (a and c). a–f scale bars = 30μm; g-h scale bars: 20μm
