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Dose-Dependent Alkaloid Sequestration And N-Methylation Of Decahydroquinoline In Poison Frogs, Adriana M. Jeckel, Sarah K. Bolton, Katherine R. Waters, Marta M. Antoniazzi, Carlos Jared, Kunihiro Matsumura, Keisuke Nishikawa, Yoshiki Morimoto5, Taran Grant, Ralph Saporito
Dose-Dependent Alkaloid Sequestration And N-Methylation Of Decahydroquinoline In Poison Frogs, Adriana M. Jeckel, Sarah K. Bolton, Katherine R. Waters, Marta M. Antoniazzi, Carlos Jared, Kunihiro Matsumura, Keisuke Nishikawa, Yoshiki Morimoto5, Taran Grant, Ralph Saporito
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Sequestration of chemical defenses from dietary sources is dependent on the availability of compounds in the environment and the mechanism of sequestration. Previous experiments have shown that sequestration efficiency varies among alkaloids in poison frogs, but little is known about the underlying mechanism. The aim of this study was to quantify the extent to which alkaloid sequestration and modification are dependent on alkaloid availability and/or sequestration mechanism. To do this, we administered different doses of histrionicotoxin (HTX) 235A and decahydroquinoline (DHQ) to captive‐bred Adelphobates galactonotus and measured alkaloid quantity in muscle, kidney, liver, and feces. HTX 235A and DHQ were …