Jones C G, Hoggard M P, Blum M S
Comp Biochem Physiol C Comp Pharmacol Toxicol. 1983;76(2):283-4. doi: 10.1016/0742-8413(83)90079-8.
Extracts of Oncopeltus fasciatus adults, fed from the first instar on sunflower seed diets impregnated with bufadienolides-cardenolide analogs, contained no detectable bufadienolides or polar steroid metabolites on TLC. O. fasciatus did sequester cardenolides from host and non-host sources, and bufadienolides were recovered from extracts of impregnated seeds. Possible reasons for the absence of detectable bufadienolides in these insects are suggested.
从一龄开始就以浸有蟾蜍二烯羟酸内酯 - 强心甾内酯类似物的向日葵种子饲料喂养的大斑芫菁成虫提取物，在薄层层析上未检测到蟾蜍二烯羟酸内酯或极性甾体代谢物。大斑芫菁确实从宿主和非宿主来源中隔离了强心甾内酯，并且从浸渍种子的提取物中回收了蟾蜍二烯羟酸内酯。文中提出了这些昆虫中未检测到可检测蟾蜍二烯羟酸内酯的可能原因。
