Amphibians Bufo marinus

Van Vliet BN, West NH. Functional characteristics of arterial chemoreceptors in an amphibian (Bufo marinus). Respir Physiol 1986 88 113-127. 

Irikura, D., et at. (2007). Characterization of a major secretory protein in the cane toad (Bufo marinus) choroid plexus as an amphibian lipocalin-type prostaglandin D synthase. J. Biochem. 141, 173-80. 

Three of the classes of compounds found from the skin of amphibians have been identified from the skin of bufonids, including Bufo marinus. These are steroids (bufadienolides), biogenic amines (catecholamines, indolylalkylamines and alkaloids) and bioactive peptides and proteins. 

Morphine (XXIII), a well-known plant alkaloid, has been detected in trace amounts in the skin of the bufonid toad, Bufo marinus (184). It is possible that this, and perhaps other trace alkaloids found in amphibian... 

Also In amphibians like the cane toad, Bufo marinus, considerable amounts of morphine can be detected In the skin. 

Because of this effect of insulin on active sodium transport, it was thought worth while to evaluate the influence of the hormone on amphibian epithelia characterized by an ability to perform unidirectional sodium movement in the absence of external driving forces. A stimulation of transmembrane potential and of short-circuit current - a reflection of net, active sodium transport (Ussing and Zerahn, 1951) - was observed upon addition to Ringer s on the inner surface of incubated ventral skin of Bufo marinus, of 1 unit/ml ox insulin (Andre and Crabbe, 1966). 

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