An aphid repellent glycoside from Solanum laxum
| Autor: | Alvaro Vázquez, Fernando Ferreira, Patrick Moyna, Silvia Soulé, Victor H. Argandoña, C. Güntner |
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| Rok vydání: | 2000 |
| Předmět: |
Solanum laxum
Stereochemistry Molecular Sequence Data Saponin Oligosaccharides Plant Science Horticulture Biochemistry Glucosides Botany Animals Glycosides Molecular Biology Solanaceae chemistry.chemical_classification Aphid biology Glycoside Biological activity Aphididae General Medicine Nuclear magnetic resonance spectroscopy biology.organism_classification Carbohydrate Sequence chemistry Aphids Insect Repellents |
| Zdroj: | Phytochemistry. 55:217-222 |
| ISSN: | 0031-9422 |
| Popis: | A spirostanic saponin was isolated from the ethanolic extract of the aerial parts of Solanum laxum Steud. The compound, named luciamin, was characterised by NMR spectroscopy, mass spectrometry and chemical methods, as (22 R , 25 S )-spirost-5-en-3 β, 15 α-diol 3- O -{β- d -glucopyranosyl (1→2)-β- d -glucopyranosyl-(1→4)-[α- l -rhamnopyranosyl-(1→2)]-β- d -galactopyranoside}. The compound was tested against the aphid Schizaphis graminum by incorporation in artificial diets. It showed a deterrent (toxic) activity against the insect and is the first spirostane glycoside reported to have this activity. |
| Databáze: | OpenAIRE |
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