| Title: | Influence of Genotype and Harvest Time on the Cynara cardunculus L. Sesquiterpene Lactone Profile |
| Author(s): | Scavo A; Rial C; Varela RM; Molinillo JMG; Mauromicale G; Macias FA; |
| Address: | "Department of Agriculture, Food and Environment (Di3A) , University of Catania , Via Valdisavoia 5 , 95123 Catania , Italy. Allelopathy Group, Department of Organic Chemistry, Institute of Biomolecules (INBIO), Campus de Excelencia Internacional (ceiA3), School of Science , University of Cadiz , Calle Republica Saharaui 7 , 11510 Puerto Real , Cadiz , Spain" |
| ISSN/ISBN: | 1520-5118 (Electronic) 0021-8561 (Linking) |
| Abstract: | "The excessive and inappropriate application of herbicides has caused environmental pollution. The use of allelochemicals as bioherbicides could provide a solution to this problem. The allelopathic activity of Cynara cardunculus L. has been studied previously, and sesquiterpene lactones (STLs) were identified as the most relevant allelochemicals. The goal of the study reported here was to investigate the effect of six genotypes and three harvest times on the qualitative and quantitative composition of STLs in C. cardunculus leaves through a new ultra-high-performance liquid chromatography-tandem mass spectrometry analysis method and, thus, the effect on phytotoxicity. Overall, wild cardoon contained the highest levels of STLs of the three botanical varieties studied. Nevertheless, climatic conditions had a marked influence on the presence of STLs among the six genotypes, which was higher in the April harvest. Cynaropicrin was the most abundant STL detected. A close relationship was found between the STL profiles and the allelopathic activity, expressed as inhibition of wheat coleoptile elongation. The data provide a new and important contribution to our understanding of C. cardunculus allelopathy" |
| Keywords: | "Chromatography, High Pressure Liquid Cynara/chemistry/*genetics/*growth & development/metabolism Genotype Lactones/*chemistry/metabolism Mass Spectrometry Pheromones/chemistry/metabolism Plant Extracts/*chemistry/metabolism Plant Leaves/chemistry/genetics;" |
| Notes: | "MedlineScavo, Aurelio Rial, Carlos Varela, Rosa Maria Molinillo, Jose Maria Gonzalez Mauromicale, Giovanni Macias, Francisco Antonio eng 2019/05/17 J Agric Food Chem. 2019 Jun 12; 67(23):6487-6496. doi: 10.1021/acs.jafc.9b02313. Epub 2019 May 28" |
