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In Iran, common bunt of wheat is one of the most important diseases of wheat and using resistant varieties is the best strategy against it. In order to find resistance sources against the disease for effective breeding programs, determining races of the pathogen is critical. In this study, spikes infected with common bunt of wheat were collected from different farms of Khuzestan province in 2005-2006. Tilletia laevis and T. caries were identified as the causal agents of the disease. Twenty selected isolates were inoculated on differential genotypes and planted in farm condition. Fifteen different pathogenic races were identified in this study; L-19, L-21, and L-1 (for T. laevis) T-11, T-1, T-2 and T-31 (for T. caries). Except L-21 and L-1, other races were reported for the first time in Iran until 2008. Also eight pathogenic races were identified based on virulence/avirulence patterns in this study. Results showed that host resistance genes Bt6 and Bt14 were effective against races of T. laevis, and host resistance genes Bt5, Bt6, Bt10 and Bt14 were effective against races of T. caries in Khuzestan province.

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Intertextuality is Mikhail Bakhtin’s evolved polyphonic theory based on which the literary texts of past and present are in dialogue with each other and no text is self-sufficient and devoid of its earlier texts. The intertextual feature of artworks and literary texts challenges their independence and makes the boundaries of their independence unstable. Drawing on this idea, the present study analyzes the short story “Mirza Yunos” from the short story collection Ayne va Se Dastane Digar by Sirus Shamisa. In addition to being a manifestation of the characteristics of postmodern era, I argue, the instability and suspension of boundaries among literary texts is a consolidating element for the ontological aspect of fictional atmosphere in the realm of fiction, through which the textuality of history/reality is realized. This study shows that the various inter-texts in a text can make it possible for the existing and non-existing experiences to be interwoven in a way that recognizing their limits becomes increasingly difficult. I also argue that literary texts are not just in dialogue with written texts, but the semantic and conceptual scope of the word “text” becomes wider and includes various new aspects. In fact, as different genres enter the fiction realm, one should speak of “inter-genre” concept and think of the fiction as its subcategory.