Effects of ajugarins and related neoclerodane diterpenoids on feeding behaviour of Leptinotarsa decemlineata and Spodoptera exigua larvae
| Autor: | Cristina Caballero, Giuseppe Savona, Gianfranco Fontana, Benjamín Rodríguez, Félix Ortego, Paola Pierro, Pedro Castañera |
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| Rok vydání: | 2001 |
| Předmět: |
Magnetic Resonance Spectroscopy
Plant Science Spodoptera Horticulture Biochemistry Lepidoptera genitalia chemistry.chemical_compound Exigua Botany Animals Molecular Biology Leptinotarsa Larva biology fungi Feeding Behavior General Medicine biology.organism_classification Terpenoid Coleoptera chemistry Noctuidae Diterpenes Diterpene |
| Zdroj: | Phytochemistry. 58:249-256 |
| ISSN: | 0031-9422 |
| DOI: | 10.1016/s0031-9422(01)00253-9 |
| Popis: | Three naturally occurring ajugarins and seven semisynthetic derivatives of them, possessing different functionalities in the decalin part, together with two natural furoneoclerodane diterpenes, have been assessed as feeding behavior modifying agents of larvae of the generalist Spodoptera exigua and a specialist like Leptinotarsa decemlineata. Ajugarin I and some of its derivatives exhibited a significant antifeedant activity against larvae of S. exigua in both choice and no-choice assays. Conversely, the furoneoclerodane diterpenes only presented antifeedant activity against larvae of L. decemlineata. These results indicate that the biological action of the tested substances is strongly modulated by minimal structural variations, which are also responsible for the specificity of action. |
| Databáze: | OpenAIRE |
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