Figure 1From: Intestinal cellular localization of PCNA protein and CYP1A mRNA in Atlantic salmon Salmo salar L. exposed to a model toxicantGastrointestinal tract of Atlantic salmon (≈ 100 grams) showing oesophagus, stomach, pyloric caeca, mid intestine (MI) and distal intestine (DI). A) Arrow showing where the DI samples were taken for gene expression B) Arrow showing where the MI samples were taken for gene expression, immunohistochemistry and in situ hybridization.Back to article page