Studies of Cholienrgic and Histaminergic drugs on melenophores of a teleost fish Rasbora elanga (Ham.)

Abstract

In the present study, it is observed that the acetylcholine show dispersal effect in isolated skin pigment melanophores of Rasbora elenga. The cholinergic blocking agent (atropine) decreases the dispersion rate of acetylcholine, while cholinergic receptors increase the rate of dispersion of acetylcholine. In the present investigation clearly indicated that acetylcholine is more govern the dispersion of skin pigment melanophores, while histamine induced the aggregation of melanophores in the fish scale.

Key words: Acetylcholine, Histamine, Atropine, Dipheniramine, Rasbora elanga