Effects of Endophytic Bacillus Subtilis and Salicylic Acid on Postharvest Diseases (Phytophthora infestans, Fusarium oxysporum) Development in Stored Potato Tubers
| Autor: | Recep Palamutoğlu, Andrey Baymiev, Liudmila Pusenkova, Irina Shpirnaya, Igor Koryakov, Ildar Mardanshin, Darya Garshina, Cemal Kasnak, Aysylu Shayahmetova, Oksana Lastochkina |
|---|---|
| Přispěvatelé: | Kasnak, Cemal, Palamutoğlu, Recep |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
0301 basic medicine Phytophthora infestans salicylic acid Context (language use) Plant Science Bacillus subtilis Shelf life 01 natural sciences resistance 03 medical and health sciences chemistry.chemical_compound Fusarium oxysporum endophytic Bacillus subtilis potatoes Proline Ecology Evolution Behavior and Systematics Ecology biology fungi Botany postharvest diseases food and beverages biology.organism_classification Horticulture 030104 developmental biology chemistry QK1-989 Postharvest Salicylic acid 010606 plant biology & botany |
| Zdroj: | Plants Volume 9 Issue 1 Plants, Vol 9, Iss 1, p 76 (2020) |
| ISSN: | 2223-7747 |
| DOI: | 10.3390/plants9010076 |
| Popis: | Postharvest diseases of potato lead to significant food and economic losses worldwide. The exogenous application of eco-friendly methods plays an important role in the control of postharvest decay. In this work the effects of endophytic bacteria B. subtilis (10-4, 26D) were studied in the context of two application parameters: concentration, with a range between 103&ndash 108 CFU/mL tested, and synergistic effects of the signal molecule salicylic acid (SA) (0.05 mM) on potato tubers&rsquo resistance to Phytophthora infestans and Fusarium oxysporum during storage. The experiments were carried out on hydroponically grown potato (Solanum tuberosum L.) mini-tubers. This study demonstrates the suppressive effect of B. subtilis (10-4, 26D) on diseases of potato during storage and reveals that this effect happens in a dose-dependent manner, both individually and in combination with SA. The most effective concentrations of B. subtilis for suppression of both Ph. infestans and F. oxysporum are 108 CFU/mL (10-4 and 26D), 107 CFU/mL (10-4 + SA) and 106 CFU/mL (26D + SA). The ability of B. subtilis (10-4, 26D) to effectively penetrate and colonize the internal tubers&rsquo tissues when applied immediately prior to storage, and the ability of SA to accelerate these processes, have been proven. B. subtilis (10-4, 26D), individually and in compositions with SA, increased ascorbic acid content and decreased pathogen-induced proline accumulation and lipid peroxidation in tubers. This indicates a protective effect conferred to cells against reactive oxygen and an extension of aging processes, manifested by a prolonged shelf life and extended preservation of fresh appearance. |
| Databáze: | OpenAIRE |
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