High-resolution screening combined with HPLC–HRMS–SPE–NMR for identification of fungal plasma membrane H+-ATPase inhibitors from plants
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High-resolution screening combined with HPLC–HRMS–SPE–NMR for identification of fungal plasma membrane H+-ATPase inhibitors from plants. / Kongstad, Kenneth; Wubshet, Sileshi Gizachew; Johannesen, Ane; Kjellerup, Lasse; winther, Anne-Marie Lund; Jäger, Anna; Stærk, Dan.
I: Journal of Agricultural and Food Chemistry, Bind 62, Nr. 24, 2014, s. 5595-5602.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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T1 - High-resolution screening combined with HPLC–HRMS–SPE–NMR for identification of fungal plasma membrane H+-ATPase inhibitors from plants
AU - Kongstad, Kenneth
AU - Wubshet, Sileshi Gizachew
AU - Johannesen, Ane
AU - Kjellerup, Lasse
AU - winther, Anne-Marie Lund
AU - Jäger, Anna
AU - Stærk, Dan
PY - 2014
Y1 - 2014
N2 - Crude extracts of 33 plant species were assessed for fungal plasma membrane (PM) H+-ATPase inhibition. This led to identification of 18 extracts showing more than 95% inhibition at a concentration of 7.5 mg/mL and/or a concentration-dependent activity profile. These extracts were selected for semi-high-resolution fungal PM H+-ATPase inhibition screening, and, on the basis of these results, Haplocoelum foliolosum (Hiern) Bullock and Sauvagesia erecta L. were selected for investigation by high-resolution fungal PM H+-ATPase inhibition screening. Structural analysis performed by high-performance liquid chromatography-high-resolution mass spectrometry-solid-phase extraction-nuclear magnetic resonance spectroscopy (HPLC-HRMS-SPE-NMR) led to identification of chebulagic acid (1) and tellimagrandin II (2) from H. foliolosum. Preparative-scale isolation of the two metabolites allowed determination of IC50 values for PM H+-ATPase, and growth inhibition of Saccharomyces cerevisiae and Candida albicans. Chebulagic acid and tellimagrandin II are both potent inhibitors of the PM H+-ATPase with inhibitory effect on the growth of S. cerevisiae.
AB - Crude extracts of 33 plant species were assessed for fungal plasma membrane (PM) H+-ATPase inhibition. This led to identification of 18 extracts showing more than 95% inhibition at a concentration of 7.5 mg/mL and/or a concentration-dependent activity profile. These extracts were selected for semi-high-resolution fungal PM H+-ATPase inhibition screening, and, on the basis of these results, Haplocoelum foliolosum (Hiern) Bullock and Sauvagesia erecta L. were selected for investigation by high-resolution fungal PM H+-ATPase inhibition screening. Structural analysis performed by high-performance liquid chromatography-high-resolution mass spectrometry-solid-phase extraction-nuclear magnetic resonance spectroscopy (HPLC-HRMS-SPE-NMR) led to identification of chebulagic acid (1) and tellimagrandin II (2) from H. foliolosum. Preparative-scale isolation of the two metabolites allowed determination of IC50 values for PM H+-ATPase, and growth inhibition of Saccharomyces cerevisiae and Candida albicans. Chebulagic acid and tellimagrandin II are both potent inhibitors of the PM H+-ATPase with inhibitory effect on the growth of S. cerevisiae.
U2 - 10.1021/jf501605z
DO - 10.1021/jf501605z
M3 - Journal article
C2 - 24830509
VL - 62
SP - 5595
EP - 5602
JO - Journal of Agricultural and Food Chemistry
JF - Journal of Agricultural and Food Chemistry
SN - 0021-8561
IS - 24
ER -
ID: 110838170