Author(s)

Liubov G. Yarullina, Svetlana V. Veselova, Rinat I. Ibragimov, Irina A. Shpirnaya, Rita I. Kasimova, Albina R. Akhatova, Vyacheslav O. Tsvetkov, Igor V. Maksimov

Bashkir State University, Ufa, Russia.
Institute of Biochemistry and Genetics of Ufa Scientific Centre of Russian Academy of Sciences, Ufa, Russia.

Functional traits, potentially associated with resistance to infection, were investigated in cultivars of bread wheat. Plant responses to infection by hemibiotrophic fungus Stagonospora (Septoria) nodorum were studied under laboratory conditions. Infection-induced up-regulation of genes coding for class III peroxidase, oxalate oxidase and protease inhibitor was greater in leaves with reduced disease symptoms (percentage of chlorotic or necrotic leaf area). Similar association was detected between activity of pectinase inhibitors and disease severity. Resistant cultivar also differed from the susceptible one by increased content of Н₂О₂ in infected tissues and more intensive deposition of lignin. We discuss possibility of using these functional traits in plant breeding for increased stress tolerance.

Infection, Peroxidase, Oxalate Oxidase, Protease Inhibitor, Pectinase Inhibitor, PR-Gene Expression, Н2О2, Lignin, Wheat

Yarullina, L. , Veselova, S. , Ibragimov, R. , Shpirnaya, I. , Kasimova, R. , Akhatova, A. , Tsvetkov, V. and Maksimov, I. (2014) Search for Molecular Markers of Wheat Resistance to Fungal Pathogens. Agricultural Sciences, 5, 722-729. doi: 10.4236/as.2014.58076.