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    Reactive Oxygen Species Play a Role in the Infection of the Necrotrophic Fungi, Rhizoctonia solani in Wheat

    240446_240446.pdf (888.3Kb)
    Access Status
    Open access
    Authors
    Foley, R.
    Kidd, B.
    Hane, James
    Anderson, J.
    Singh, K.
    Date
    2016
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Foley, R. and Kidd, B. and Hane, J. and Anderson, J. and Singh, K. 2016. Reactive Oxygen Species Play a Role in the Infection of the Necrotrophic Fungi, Rhizoctonia solani in Wheat. PLoS One. 11 (3).
    Source Title
    PLoS One
    DOI
    10.1371/journal.pone.0152548
    ISSN
    1932-6203
    School
    Centre for Crop Disease Management
    URI
    http://hdl.handle.net/20.500.11937/37995
    Collection
    • Curtin Research Publications
    Abstract

    Rhizoctonia solani is a nectrotrophic fungal pathogen that causes billions of dollars of damage to agriculture worldwide and infects a broad host range including wheat, rice, potato and legumes. In this study we identify wheat genes that are differentially expressed in response to the R. solani isolate, AG8, using microarray technology. A significant number of wheat genes identified in this screen were involved in reactive oxygen species (ROS) production and redox regulation. Levels of ROS species were increased in wheat root tissue following R. solani infection as determined by Nitro Blue Tetrazolium (NBT), 3,3'-diaminobenzidine (DAB) and titanium sulphate measurements. Pathogen/ROS related genes from R. solani were also tested for expression patterns upon wheat infection. TmpL, a R. solani gene homologous to a gene associated with ROS regulation in Alternaria brassicicola, and OAH, a R. solani gene homologous to oxaloacetate acetylhydrolase which has been shown to produce oxalic acid in Sclerotinia sclerotiorum, were highly induced in R. solani when infecting wheat. We speculate that the interplay between the wheat and R. solani ROS generating proteins may be important for determining the outcome of the wheat/R. solani interaction.

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