Informace o publikaci
Polyketide Derivatives in the Resistance of Gerbera hybrida to Powdery Mildew
| Autoři | |
|---|---|
| Rok publikování | 2022 |
| Druh | Článek v odborném periodiku |
| Časopis / Zdroj | Frontiers in Plant Science |
| Fakulta / Pracoviště MU | |
| Citace | |
| www | https://www.frontiersin.org/articles/10.3389/fpls.2021.790907/full |
| Doi | http://dx.doi.org/10.3389/fpls.2021.790907 |
| Klíčová slova | Gerbera hybrida; powdery mildew resistance; H-1 NMR; decision tree; polyketides |
| Popis | Powdery mildew is a common disease affecting the commercial production of gerbera flowers (Gerbera hybrida, Asteraceae). Some varieties show a certain degree of resistance to it. Our objective was to identify biomarkers of resistance to powdery mildew using an H-1 nuclear magnetic resonance spectroscopy and chemometrics approach in a complex, fully factorial experiment to suggest a target for selection and breeding. Resistant varieties were found to differ from those that were susceptible in the metabolites of the polyketide pathway, such as gerberin, parasorboside, and gerberinside. A new compound probably involved in resistance, 5-hydroxyhexanoic acid 3-O-beta-D-glucoside, was described for the first time. A decision tree model was built to distinguish resistant varieties, with an accuracy of 57.7%, sensitivity of 72%, and specificity of 44.44% in an independent test. Our results suggest the mechanism of resistance to powdery mildew in gerbera and provide a potential tool for resistance screening in breeding programs. |