Structures and biological significance of lactarane sesquiterpenes from the European mushroom Russula nobilis
| Autor: | Alessio Porta, Davide Gozzini, Giovanni Vidari, Gianluca Gilardoni, Omar Malagón, Marco Clericuzio |
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| Rok vydání: | 2014 |
| Předmět: |
Russulanobilines
Plant Science Horticulture Russula nobilis Biochemistry Lactones Russulaceae Velutinal esters Botany Humans Fruiting Bodies Fungal Nuclear Magnetic Resonance Biomolecular Molecular Biology chemistry.chemical_classification Mushroom Molecular Structure biology Basidiomycota Fatty acid General Medicine New variant biology.organism_classification chemistry Biological significance Lactarane sesquiterpene lactones Wounds and Injuries Chemical defense Agaricales Sesquiterpenes Isolation and structure determination |
| Zdroj: | Repositorio Universidad Técnica Particular de Loja Universidad Técnica Particular de Loja instacron:UTPL |
| ISSN: | 0031-9422 |
| DOI: | 10.1016/j.phytochem.2014.08.018 |
| Popis: | The results of the first investigation on secondary metabolites occurring in intact and damaged fruiting bodies of Russula nobilis growing in Europe, are reported. Intact mushrooms contain fatty acid esters of velutinal, while three new sesquiterpenoids, russulanobilines A-C, along with eight known ones were isolated from extracts of injured fruiting bodies. The structures of the new compounds were elucidated on the basis of spectral data, molecular modeling, and C-13 NMR spectra calculation. This pattern of sesquiterpenes constitutes a new variant of a chemical defense machinery which protects mushrooms against predators, parasites, and microorganisms. (C) 2014 Elsevier Ltd. All rights reserved. |
| Databáze: | OpenAIRE |
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