Below-Ground Attack by the Root Knot Nematode Meloidogyne graminicola Predisposes Rice to Blast Disease
| Autor: | Tina Kyndt, Henok Yimer Zemene, Ashley Haeck, Richard Singh, David De Vleesschauwer, Simon Denil, Tim De Meyer, Monica Höfte, Kristof Demeestere, Godelieve Gheysen |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | Molecular Plant-Microbe Interactions, Vol 30, Iss 3, Pp 255-266 (2017) |
| Druh dokumentu: | article |
| ISSN: | 1943-7706 0894-0282 |
| DOI: | 10.1094/MPMI-11-16-0225-R |
| Popis: | Magnaporthe oryzae (rice blast) and the root-knot nematode Meloidogyne graminicola are causing two of the most important pathogenic diseases jeopardizing rice production. Here, we show that root-knot nematode infestation on rice roots leads to important above-ground changes in plant immunity gene expression, which is correlated with significantly enhanced susceptibility to blast disease. A detailed metabolic analysis of oxidative stress responses and hormonal balances demonstrates that the above-ground tissues have a disturbed oxidative stress level, with accumulation of H2O2, as well as hormonal disturbances. Moreover, double infection experiments on an oxidative stress mutant and an auxin-deficient rice line indicate that the accumulation of auxin in the above-ground tissue is at least partly responsible for the blast-promoting effect of root-knot nematode infection. |
| Databáze: | Directory of Open Access Journals |
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