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Histochemical analysis of mucosubstsnces in the gill epithelium of Channa punctatus exposed to lethal concentration of malathion

Keywords: Mucosubstances , Histochemistry , Gills , Epithelial cells , Mucous cells , Channa punctatus.

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Abstract:

he gill epithelial cells of Channa punctatus (Bloch) exposed to lethal concentration of malathion showed increased production of neutral mucins , sulfomucins and sialomucins in variable amount as compared to only neutral mucins in poor amount in control fish. Increase in the amount of only neutral mucins elaborated by M1 mucous cells and only sulfomucins by M2 mucous cells was also evident. The epithelial cells and mucous cells reaveled the absence of glycogen and any atypical mucosubstances both in control fish as well as in fishes exposed to pesticide.

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