Sequestration of pyrrolizidine alkaloids in several arctiid moths (Lepidoptera: Arctiidae)
Sequestration of pyrrolizidine alkaloids in several arctiid moths (Lepidoptera: Arctiidae)
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几种牛螟蛾（鳞翅目：牛螟科）中吡咯里西啶生物碱的封存
DOI：
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发表时间：
1993
影响因子：
2.3
通讯作者：
Michael Wink
中科院分区：
文献类型：
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作者：
E. V. Nickisch;Michael Wink
研究了6种欧洲夜蛾（Spilosoma lubricipeda、Arctia caja、Phragmatobia fuliginosa、Callimorpha dominula、Diacrisia sannio和Tyria jacobaeae）幼虫和成虫对食物中吡咯里西啶生物碱（PA）的螯合作用，并与亚洲夜蛾（Creatonotos transiens）进行了比较。所有物种的幼虫都将游离PA碱代谢为各自的N-氧化物。只有成年人A。caja、黑脉黑脉叶蝉（P. fuliginosa）和S. lubricipeda，而不是它们的幼虫，将食物中的7（S）-天芥菜碱转化为7（R）-天芥菜碱，7（R）-天芥菜碱是某些Arctiids中雄性信息素7（R）-hydroxydanaidal的直接前体。幼虫外皮是再吸收生物碱的主要储存部位;在其他组织中仅发现少量。此外，牛蒡的茧中还含有大量的生物碱，而在其胎粪和分泌物中仅能发现微量的生物碱。很大一部分的生物碱饲料被降解为未知的，非生物碱的产品。
Sequestration of dietary pyrrolizidine alkaloids (PA) by larvae and adults of six European arctiid moth species (Spilosoma lubricipeda, Arctia caja, Phragmatobia fuliginosa, Callimorpha dominula, Diacrisia sannio, andTyria jacobaeae) was investigated for comparison with the well-studied Asian arctiidCreatonotos transiens. Larvae of all species metabolized free PA bases into the respectiveN-oxides. Only adults ofA. caja, P. fuliginosa, andS. lubricipeda, but not their larvae, converted dietary 7(S)-heliotrine to 7(R)-heliotrine, a direct precursor of a male pheromone in some arctiids, 7(R)-hydroxydanaidal. The larval integument figures as the main storage site for resorbed alkaloids; only minor amounts were found in other tissues. In addition, a significant amount of alkaloid is deposited in the cocoon ofArctia caja; only traces of alkaloids could be found in the meconium and the exuviae of this species. A substantial part of the alkaloids fed was degraded to unknown, nonalkaloidal products.