Vertebrates perceive a variety of exogenous substances using two main chemosensory systems, taste and olfaction. The taste perception occurs through the interaction of taste receptors associated with specific G protein subunits such as a-transducin (Gatran) and a-gustducin (Gagust). Aquatic vertebrates are also provided with a chemosensory system consisting of solitary chemosensory cells distributed to the oropharynx and skin. In this study, we identified Gatran and Gagust-immunoreactive cells intermingled with non-labeled epithelial cells in the gastric mucosa of the common sole. A long-term diet with increasing concentrations of mussel meal in the protein component of a conventional fish meal-based diet induced a dose-dependent increase in the gastric epithelial area and density of Gatran and Gagust immunoreactive cells. These findings suggest that taste-related molecules are regulated by changes in diet formulation in common sole aquaculture.

a-Transducin and a-gustducin immunoreactive cells in the stomach of common sole (Solea solea) fed with mussel meal

MAZZONI, MAURIZIO;BONALDO, ALESSIO;GATTA, PIER PAOLO;VALLORANI, CLAUDIA;LATORRE, ROCCO;CANOVA, MARCO;CLAVENZANI, PAOLO
2015

Abstract

Vertebrates perceive a variety of exogenous substances using two main chemosensory systems, taste and olfaction. The taste perception occurs through the interaction of taste receptors associated with specific G protein subunits such as a-transducin (Gatran) and a-gustducin (Gagust). Aquatic vertebrates are also provided with a chemosensory system consisting of solitary chemosensory cells distributed to the oropharynx and skin. In this study, we identified Gatran and Gagust-immunoreactive cells intermingled with non-labeled epithelial cells in the gastric mucosa of the common sole. A long-term diet with increasing concentrations of mussel meal in the protein component of a conventional fish meal-based diet induced a dose-dependent increase in the gastric epithelial area and density of Gatran and Gagust immunoreactive cells. These findings suggest that taste-related molecules are regulated by changes in diet formulation in common sole aquaculture.
Maurizio Mazzoni; Alessio Bonaldo; Pier Paolo Gatta; Claudia Vallorani; Rocco Latorre; Marco Canova; Paolo Clavenzani
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/432167
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