Antifeedant neo-clerodanes from Teucrium tomentosum Heyne. (Labiatae)
| Autor: | S. S. Rajan, J. Balachandran, G. N. Krishna Kumari, S. Aravind, M.R. Ganesh, S. Soundarya Devi, R. Malathi, K. Ravikumar |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
Insecticides
Stereochemistry Spodoptera litura Plant Science Moths Spodoptera Horticulture Biology Crystallography X-Ray Biochemistry Hyponomeutidae Diterpenes Clerodane Teucrium chemistry.chemical_compound Animals Nuclear Magnetic Resonance Biomolecular Molecular Biology Molecular Structure Plant Extracts Plutella Feeding Behavior General Medicine biology.organism_classification Terpenoid chemistry Diterpenes Diterpene |
| Zdroj: | Phytochemistry. 64:1119-1123 |
| ISSN: | 0031-9422 |
| Popis: | From the acetone extract of Teucrium tomentosum , a new antifeedant neo- clerodane diterpenoid teuctosin ( 1) was isolated along with teuflin ( 2 ), teucrin-H 2 ( 3 ), 6β-hydroxyteuscordin ( 4 ), 6β-acetylteuscordin ( 5 ) and montanin-D ( 6 ). The structure of the new compound was elucidated comprehensively using 1D and 2D NMR methods and confirmed by X-ray crystallography. All the compounds showed effective antifeedancy against Plutella xylostella and Spodoptera litura at 10 μg/cm 2 of leaf area. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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