Infection induced defence responses in sorghum, with special emphasis on accumulation of reactive oxygen species and cell wall modifications

Puttalingaiah Basavaraju*, Nandini P. Shetty, Hunthrike S. Shetty, Eigil de Neergaard, Hans J.L. Jørgensen

*Corresponding author af dette arbejde

    Abstract

    Hemibiotrophic plant pathogens pass both biotrophic and necrotrophic phases during their infection cycle. Colletotrichum spp. exhibits two types of hemibiotrophy, i.e. intracellular and subcuticular intramural. Colletotrichum sublineolum infecting sorghum exhibits a typical intracellular type of hemibiotrophy. During the biotrophic stage of C. sublineolum infection in sorghum, several cell wall-associated defence reactions are activated and efficiently participate in stopping pathogen development. Among these defence reactions, generation and accumulation of reactive oxygen species (ROS) and cell wall barrier formation are key factors in resistance. This review focuses on the infection processes of C. sublineolum in sorghum and the defence responses activated, with special emphasis on accumulation of ROS and hydroxy-rich glyco-proteins (HRGPs).

    OriginalsprogEngelsk
    TidsskriftArchives of Phytopathology and Plant Protection
    Vol/bind43
    Udgave nummer13
    Sider (fra-til)1295-1317
    Antal sider23
    ISSN0323-5408
    DOI
    StatusUdgivet - 2010

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