Tropane and pyrrolizidine alkaloids in the ithomiines Placidula euryanassa and Miraleria cymothoe (Lepidoptera: Nymphalidae)

被引：35

作者：

Freitas, Andre V. L. ^{[1
]}

Trigo, Jose Roberto ^{[1
]}

Brown, Keith S., Jr. ^{[1
]}

Witte, Ludger ^{[2
]}

Hartmann, Thomas ^{[2
]}

Barata, Lauro E. S. ^{[3
]}

机构：

[1] Univ Estadual Campinas, Inst Biol, Dept Zool, Lab Ecol Quim, BR-13083970 Campinas, SP, Brazil

[2] Tech Univ Braunschweig, Inst Pharmazeut Biol, D-38106 Braunschweig, Germany

[3] Inst Quim, BR-13083970 Campinas, SP, Brazil

来源：

CHEMOECOLOGY | 1996年 / 7卷 / 02期

基金：

巴西圣保罗研究基金会;

关键词：

chemical defense; tropane alkaloids; pyrrolizidine alkaloids; lycopsamine; Ithomiinae; Placidula euryanassa; Miraleria cymothoe; Solanaceae; Brugmansia suaveolens;

D O I：

10.1007/BF01239482

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Larvae of the ithomiine butterfly Placidula euryanassa sequester tropane alkaloids (TAs) from the host plant Brugmansia suaveolens and pass them through the pupae to freshly emerged adults. Wild caught adults also show in their tissues, variable amounts of pyrrolidizine alkaloids (PAs), probably sequestered from variable plant sources and subject to dynamics of incorporation, accumulation and utilization of PAs by ithomiine butterflies. The ratio TAs/PAs is also variable between different populations. Miraleria cymothoe, another ithomiine that feeds on B. suaveolens as larvae, does not sequester TAs from the host-plant, but sequesters PAs from plant sources visited by the adult butterflies. The main alkaloid found in both butterflies is lycopsamine, which also is the principal PA found in all genera of Ithomiinae.

引用

页码：61 / 67

页数：7

共 21 条

[1] SOLVENT AND TEMPERATURE EFFECTS IN DETERMINATION OF PYRROLIZIDINE ALKALOIDS WITH 4-DIMETHYLAMINOBENZALDEHYDE [J].