Resistance reaction of Medicago truncatula genotypes to Fusarium oxysporum: effect of plant age, substrate and inoculation method
| Autor: | Diego Rubiales, Nicolas Rispail, Moustapha Bani |
|---|---|
| Přispěvatelé: | European Commission, Ministerio de Economía y Competitividad (España), Ministerio de Ciencia e Innovación (España) |
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
0106 biological sciences
Fungal pathogen Plant Science Plant disease resistance 01 natural sciences 03 medical and health sciences Field pea Sativum Fusarium oxysporum Medicago sativa 030304 developmental biology 2. Zero hunger 0303 health sciences Disease resistance biology Barrel medic Infrared imaging system Inoculation fungi food and beverages biology.organism_classification Fusarium wilt Medicago truncatula Horticulture Agronomy Phenotyping Agronomy and Crop Science 010606 plant biology & botany |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname |
| Popis: | Fusarium wilt, caused by several formae speciales of Fusarium oxysporum, is an important disease of most crop and pasture legumes, including field pea (Pisum sativum), chickpea (Cicer arietinum), lucerne (alfalfa, Medicago sativa) and barrel medic (M. truncatula). Medicago truncatula is an important pasture legume and a model legume species. Hence, it can be used to increase our knowledge of resistance mechanisms efficient to block F. oxysporum infection if its response to the disease is characterised. We evaluated the physiological and susceptibility responses to the disease of two contrasting M. truncatula genotypes, and the effect of several cultural conditions known to affect the disease incidence, such as plant age at infection time, growth substrate and the method of inoculation. Our results indicated that the A17 accession harbours a moderate level of resistance to the disease. We also showed that the method of inoculation strongly affected development of fusarium wilt disease in this model species, whereas it was not significantly altered by plant age or the inorganic growth substrate tested. In addition, we describe a rapid change in leaf temperature after infection, which can be used as an indirect parameter to confirm fungal infection at a very early stage of the interaction. This work was supported by the European KBBE project ABSTRESS (FP7-KBBE-2011-5-289562) and the AGL2011-22524 of the Spanish Ministry of Science and Innovation and co-financed by European fund for regional development (FEDER). NR is holder of a Ramón y Cajal postdoctoral position from the Spanish Ministry of Economy and Competitiveness. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|