| Autor: |
Anna, Mascellani, Kirsten, Leiss, Johanna, Bac-Molenaar, Milan, Malanik, Petr, Marsik, Estuardo, Hernandez Olesinski, Jan, Tauchen, Pavel, Kloucek, Karel, Smejkal, Jaroslav, Havlik |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
Frontiers in Plant Science |
| ISSN: |
1664-462X |
| 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 1H 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-β-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. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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