Effect of temperature on severity of Fusarium wilt of cabbage caused by Fusarium oxysporum f. sp. conglutinans
| Autor: | Věra Kofránková, Jaroslav Salava, Tomáš Jelínek, Martin Koudela |
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| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
0301 basic medicine biology food and beverages Plant Science Horticulture biology.organism_classification 01 natural sciences Fusarium wilt 03 medical and health sciences 030104 developmental biology Fusarium oxysporum Agronomy and Crop Science Pathogen Pcr analysis 010606 plant biology & botany |
| Zdroj: | European Journal of Plant Pathology. 155:1277-1286 |
| ISSN: | 1573-8469 0929-1873 |
| Popis: | The effect of temperature on severity of Fusarium wilt of cabbage caused by pathogen Fusarium oxysporum f. sp. conglutinans was assessed. The pathogen was first tested in vitro for growth under different temperatures of 15, 18, 24, 28 and 37 °C. Based on the results, several temperature variants were selected to test the effect of temperature on the infection of plants grown in substrate. Two susceptible and one resistant variety were chosen for the testing. Cabbage plants were cultivated at temperatures of 16/18 °C, 19/21 °C, 22/24 °C and 26/28 °C. Susceptible varieties showed more severe symptoms and greater plant die-off at higher temperatures (22/24 °C and 26/28 °C), compared to lower temperatures (16/18 °C and 19/21 °C). For the resistant variety, the highest incidence of wilt symptoms was observed at 26/28 °C, while the degree of infection was the same as in susceptible plants at lower temperatures. PCR analysis demonstrated that plants grown at lower temperatures with minimum symptoms were also infected with the pathogen. The study suggested losses due to Fusarium wilt could be reduced by cultivating cabbages during colder periods. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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