4.7 Article

Phytochemical Characterization of Phoradendron bollanum and Viscum album subs. austriacum as Mexican Mistletoe Plants with Antimicrobial Activity

Journal

PLANTS-BASEL
Volume 10, Issue 7, Pages -

Publisher

MDPI
DOI: 10.3390/plants10071299

Keywords

Phoradendron bollanum; Viscum album subs; austriacum; mistletoe; mineral characterization; biochemical characterization; antimicrobial activity

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Funding

  1. Secretary of Public Education of Mexico [UACOAH-PTC-485, F-PROMEP-38/Rev-04, SEP-23-005]

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In this study, the composition of minerals and phytochemical compounds in Mexican mistletoes Phoradendron bollanum and Viscum album subs. austriacum was analyzed, revealing the presence of various biologically active compounds such as flavonoids and phenols. The antimicrobial potential of mistletoe's liquid extracts in controlling phytopathogenic microorganisms was assessed, showing successful inhibition of Clavibacter michiganenses.
In Mexico, mistletoes have several applications in traditional medicine due to the great variety of compounds with biological activities that have not been characterized to date. The goals of the present study are to analyze the composition of minerals and phytochemical compounds in Mexican mistletoes Phoradendron bollanum and Viscum album subs. austriacum qualitatively and quantitatively, identify the compounds using HPLC-MS, and assess the antimicrobial potential in phytopathogenic microorganism control. Mineral content was evaluated with X-ray fluorescence. Three types of extracts were prepared: ethanol, water, and aqueous 150 mM sodium chloride solution. Characterization was carried out using qualitative tests for phytochemical compound groups, analytical methods for proteins, reducing sugars, total phenol, flavonoids quantification, and HPLC-MS for compound identification. The antimicrobial activity of mistletoe's liquid extracts was evaluated by microplate assay. K and Ca minerals were observed in both mistletoes. A qualitative test demonstrated alkaloids, carbohydrates, saponins, flavonoids, tannins, and quinones. Ethanolic extract showed flavonoids, 3845 +/- 69 and 3067 +/- 17.2 mg QE/g for Phoradendron bollanum and Viscum album subs. austriacum, respectively, while aqueous extracts showed a total phenol content of 65 +/- 6.9 and 90 +/- 1.19 mg GAE/g Phoradendron bollanum and Viscum album subs. austriacum, respectively. HPLC-MS identified largely hydroxycinnamic acids and methoxycinnamic acids. Clavibacter michiganenses was successfully inhibited by aqueous extract of both mistletoes.

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