Constitutive Expression of Senescence Associated Gene 101 in Enhances Resistance to and .

, as an effective model of cereal grains, is susceptible to most destructive cereal pathogens. () has been studied extensively in . is one of the important regulators of plant immunity. However, no homologous genes of were found in . In this study, the gene was transformed into Three transgenic plant lines containing the gene were confirmed by PCR and GUS gene activity. There were fewer urediospores in the -overexpressing plants compared to wild type plants. biomass was obviously decreased in transgenic plants. The length of infection hyphae and infection unit areas of were significantly limited in transgenic plants. Moreover, there were small lesions in transgenic plants challenged by . Salicylic acid accumulation was significantly increased, which led to elevated gene expression in transgenic inoculated by or compared to wild type plants. These results were consistent with infected phenotypes. Overexpression of in caused resistance to and . These results suggest that could regulate plant resistance in .