| Autor: | Alain Palloix, Kahsay Gebre Selassie, G. Marchoux, Anne-Marie Daubèze, Benoît Moury |
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| Rok vydání: | 1998 |
| Předmět: |
2. Zero hunger
0106 biological sciences 0303 health sciences biology Inoculation fungi food and beverages Plant Science Horticulture Plant disease resistance Tospovirus biology.organism_classification 01 natural sciences Capsicum chinense 03 medical and health sciences 13. Climate action Plant virus Pepper Botany Cultivar Agronomy and Crop Science Solanaceae 030304 developmental biology 010606 plant biology & botany |
| Zdroj: | European Journal of Plant Pathology. 104:489-498 |
| ISSN: | 0929-1873 |
| DOI: | 10.1023/a:1008618022144 |
| Popis: | The tomato spotted wilt virus resistance in pepper conferred by the Tsw gene is less stable at 32 °C continuous temperature. Continuous high temperatures for at least nine days lead to systemic spread and necrotic symptoms in plants that are totally resistant at a lower temperature (22 °C). We show that continuous high temperatures destabilize this resistance in young plants, but older inoculated plants rarely develop systemic symptoms. Populations segregating for the Tsw gene showed that heterozygosity at the Tsw locus increased the chance of inoculated seedlings to develop systemic necrotic symptoms. Genetic background was less significantly involved in the thermosensitivity of the resistant response. As a consequence, it would be preferable to grow cultivars homozygous at the Tsw locus in high temperature conditions. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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