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Below-Ground Attack by the Root Knot Nematode Meloidogyne graminicola Predisposes Rice to Blast Disease
Below-Ground Attack by the Root Knot Nematode Meloidogyne graminicola Predisposes Rice to Blast Disease
- Source :
- Molecular Plant-Microbe Interactions, Vol 30, Iss 3, Pp 255-266 (2017)
- Publication Year :
- 2017
- Publisher :
- The American Phytopathological Society, 2017.
-
Abstract
- 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.
- Subjects :
- Microbiology
QR1-502
Botany
QK1-989
Subjects
Details
- Language :
- English
- ISSN :
- 19437706 and 08940282
- Volume :
- 30
- Issue :
- 3
- Database :
- Directory of Open Access Journals
- Journal :
- Molecular Plant-Microbe Interactions
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.909d063ca50840a69ad26d89911f216f
- Document Type :
- article
- Full Text :
- https://doi.org/10.1094/MPMI-11-16-0225-R