取食蒙氏金雀花叶片的棉卷叶野螟幼虫体内的（+）-2,3-脱氢-10-氧代-α-异鹰爪豆碱

(+)-2,3-dehydro-10-oxo-alpha-isosparteine in Uresiphita reversalis larvae fed on Cytisus monspessulanus leaves.

作者信息

Nihei Ken-ichi, Shibata Kozo, Kubo Isao

机构信息

Department of Environmental Science, Policy and Management, University of California, Berkeley, CA 94720-3112, USA.

出版信息

Phytochemistry. 2002 Dec;61(8):987-90. doi: 10.1016/s0031-9422(02)00398-9.

DOI:10.1016/s0031-9422(02)00398-9

PMID:12453531

Abstract

Quinolizidine alkaloids, found in the leaves of Cytisus monspessulanus L. (Leguminosae), were characterized in the cuticle of larvae of the pyralid moth Uresiphita reversalis (Lepidoptera: Pyralidae) when the latter were fed on this weed. By GC-MS analysis of the methanolic extracts of the cuticle, four quinolizidine alkaloids, N-methylcytisine, cytisine, aphylline and anagyrine, were identified as possible defense substances. In addition, the quinolizidine alkaloid, (+)-2,3-dehydro-10-oxo-alpha-isosparteine was characterized in both the insect and host plant.

摘要

喹诺里西啶生物碱存在于蒙氏金雀儿（豆科）的叶子中，当螟蛾Uresiphita reversalis（鳞翅目：螟蛾科）的幼虫取食这种杂草时，在其表皮中发现了这些生物碱。通过对表皮甲醇提取物的气相色谱-质谱分析，鉴定出四种喹诺里西啶生物碱，N-甲基金雀花碱、金雀花碱、无叶豆碱和臭豆碱，它们可能是防御物质。此外，在昆虫和寄主植物中都鉴定出了喹诺里西啶生物碱（+）-2,3-脱氢-10-氧代-α-异鹰爪豆碱。