نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشجوی دکتری، گروه زراعت و اصلاح نباتات، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، کرج
2 استاد گروه زراعت و اصلاح نباتات، پردیس کشاورزی و منابع طبیعی، کرج
3 دانشیار پژوهشکده زیست فن¬آوری کشاورزی کرج
4 دانشیار گروه زراعت و اصلاح نباتات، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، کرج
5 کارشناس پژوهشکده زیست فن¬آوری کشاورزی
6 استادیار دانشگاه آزاد اسلامی، واحد اراک
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
Septoria tritici blotch (STB), caused by Mycosphaerella graminicola (anamorph Septoria tritici), is one of the most important diseases of wheat (Triticum aestivum) world wide. planting resistant cultivars is the best method to manage STB environmentally. Many plant genes are induced or repressed and many others are up regulated or down-regulated to response a pathogen. In this study, Real time PCR were used to analysis of expression patterns of five genes involved in septoria leaf blotch resistance in wheat. After inoculation of resistant (Wang shui bai) and susceptible (Falat) cultivars with M. graminicola fungus, expression of these genes were investigated at 11 time points in 3 replications and the expression patterns of them were determined as relative to 18s reference gene. Comparision of these sequences using NCBI data base showed that these sequences had homology to neomenthol dehydrogenase, Lucine rich repeat protein kinase, natural resistance-associated macrophage protein, alpha 1,4-glucan phosphorylase and Tubby-like F-box protein. The peak expression for 1,4-glucan phosphorylase and Lucine rich repeat protein kinase were at 3 hours after inoculation and for neomenthol dehydrogenase the peak is at 12h. For natural resistance-associated macrophage protein the peak was at 3h but it was decreased and then increased again at second day. Tubby-like F-box protein was induced at 3h and had significant expression in this time but the peak expression for this gene was at 3 day after inoculation and we can call this pattern, a bimodal one. Some of these genes were induced early after inoculation and their expression increased significantly, but some others showed an induced expression several days after inoculation.
کلیدواژهها [English]