Abstract

GUILLEN-ANDRADE, Héctor et al. Identification of new secondary metabolites in Persea Americana Miller variety Drymifolia. Rev. Mex. Cienc. Agríc [online]. 2019, vol.10, n.spe23, pp.253-265.  Epub Nov 20, 2020. ISSN 2007-0934.  https://doi.org/10.29312/remexca.v0i23.2025.

Plants have developed various defense strategies under conditions of biotic and abiotic stress, among the main ones, highlights the synthesis of secondary metabolites that act as herbicides, larvicides, repellents, attractants, fungicides, bactericides, insecticides, etc. In the present investigation, the chemical characterization of 54 collections of P. americana Miller variety Drymifolia from the avocado producer fringe of the state of Michoacán and conserved in the germplasm bank of the Faculty of Agrobiology ‘Presidente Juárez’ was raised. The study is part of a comprehensive strategy to evaluate the potential of collections as rootstocks with attributes of resistance to pests and diseases. When analyzing the chemical profile, a total of 47 secondary metabolites were identified, 16 of them, have not been reported in Persea leaf tissue. Some compounds such as β-pinene, caryophyllene, estragole, hexadecanoic acid, heptacosane and α-tocopherol were present in the 54 collections analyzed. Estragole with antifungal, larvicidal, insecticidal and genotoxic biological activity predominated with a concentration of 26.53%, with respect to the total. Additionally, significant statistical differences were determined for 12 secondary metabolites. In contrast, no relationship was found between the concentration of the metabolites and the origin of the collections.

Keywords : avocado; secondary metabolites; variability.

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