Stability of Dry and Liquid Metschnikowia pulcherrima Formulations for Biocontrol Applications against Apple Postharvest Diseases
| Autor: | Florian M. Freimoser, Sandrine Kammerecker, Andreas Bühlmann, Laurin Müller, Sarah Perren, Maja Hilber-Bodmer |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
food.ingredient
Sucrose Metschnikowia postharvest disease Biological pest control formulation Plant Science Horticulture SB1-1110 storage 03 medical and health sciences chemistry.chemical_compound field trial food Skimmed milk Glycerol biocontrol 030304 developmental biology 0303 health sciences biology 030306 microbiology viability Plant culture biology.organism_classification Fungicide chemistry Postharvest Neofabraea Metschnikowia pulcherrima |
| Zdroj: | Horticulturae, Vol 7, Iss 459, p 459 (2021) Horticulturae Volume 7 Issue 11 |
| ISSN: | 2311-7524 |
| DOI: | 10.3390/horticulturae7110459 |
| Popis: | The yeast Metschnikowia pulcherrima is frequently isolated from environmental samples and has often been reported to exhibit strong antagonistic activity against plant pathogens. In order to assess the potential of this species for its development into a plant protection product, the survival during formulation and storage were quantified and field efficacy was assessed over a period of five years. Freeze dried and liquid M. pulcherrima formulations (i.e., with skim milk powder (SMP), sucrose, glycerol, xanthan, without additives) were prepared and the number of viable cells was quantified during storage at different temperatures. Field trials against apple postharvest diseases (Neofabreae) were performed with different dry formulations. M. pulcherrima proved exceptionally stable for many months and even years. Five years of field trials with the yeast revealed variable effects, but reduced Neofabreae infections of stored apples were observed in some years. M. pulcherrima applications after prior fungicide treatments repeatedly showed an additive effect as compared to the fungicide treatments alone. In summary, M. pulcherrima exhibited highly advantageous storage properties and encouraging activity against apple postharvest rots. Further studies to identify the factors responsible for antagonistic activity in the field and survival during storage are expected to lay the foundation for the future development of a plant protection product. |
| Databáze: | OpenAIRE |
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