Changes in Lupinus albus and Lupinus angustifolius Alkaloid Profiles in Response to Mechanical Damage
Autor: | Silvia R. Leicach, Hugo Daniel Chludil, María del Pilar Vilariño, María Luz Franco |
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Rok vydání: | 2009 |
Předmět: |
Chromatography
Gas Genotype biology Alkaloid Plant composition General Chemistry biology.organism_classification Mass Spectrometry Ammodendrine Lupinus Lupinus angustifolius Alkaloids Animal science Species Specificity stomatognathic system Botany Biomass Cultivar General Agricultural and Biological Sciences Chemical composition |
Zdroj: | Journal of Agricultural and Food Chemistry. 57:6107-6113 |
ISSN: | 1520-5118 0021-8561 |
DOI: | 10.1021/jf901232c |
Popis: | The aim of this work was to evaluate chemical responses to biomass removal mimicking large herbivore action in Lupinus albus and Lupinus angustifolius aerial parts. GC and GC-MS were used to determine total alkaloid content (TAC) and alkaloid relative abundances in bitter and sweet varieties of each species. Bitter genotypes Vila vehla (Vv; 3.95 +/- 0.26 mg/g of DM) and El Harrach (EH; 3.99 +/- 0.19 mg/g of DM) showed after damage 22 and 32.8% TAC increases, respectively. Even sweet varieties, with very low alkaloid contents, Gungurru (Gu; 0.51 +/- 0.09 mg/g of DM) and Rumbo (Ru; 0.53 +/- 0.09 mg/g of DM) exhibited higher induced responses of 58.8 and 67.9%, respectively, and their final TAC values remained low, distinctly apart from those corresponding to bitter species. Moreover, minor components such as ammodendrine, reported to exhibit teratogenic potential, showed no significant changes in their relative abundances in response to biomass removal in these genotypes. |
Databáze: | OpenAIRE |
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