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Showing 4 results for Aliei


Volume 6, Issue 1 (4-2014)
Abstract

  Abstract The tombs play an important role in the Islamic era. These buildings, which are widely distributed in all parts of Iran, can reveal detailed information about the architectural styles, decorations and other materials relating to the structures and forms of these kinds of buildings. Shiite Zeidiyye government in the fourth century AD and Mar’ashid in the eighth century AD, and immigration of Sādāt and Alavid individuals to the Iranian plateau and regions such as Rey, Ghasran, Damavand, Tabarestan, Ghumes (Kumesh) and Khorassan, have been the reasons for the development of these buildings. With the death or martyrdom of these people, those places were focal points for the growth of the Shi'ite thoughts and justice-oriented uprisings or jumps. Lavassanat and Rudbar-e-Ghasran region in the northern present-day Tehran has been in direct contact with the area of Damavand in the southern Alborz climatically, historically, and culturally. This study is an analysis between some Ilkhanid buildings in the area of Lavasanat and RudbarGhasran and some contemporaneous monuments at Damavand area. The purpose is a comparison and studying of architectonic structure of the buildings, stylistic similarities and differences between them, and the kind of material and ornaments used at the mentioned regions. The research method is descriptive – analytic, data gathering was done by field and documentary methods with a theoretical orientation in cultural history studies.    

Volume 7, Issue 3 (10-2016)
Abstract

Undoubtedly, Parthian coins are considered to be one of the important sources in history of Iran during 3rd century B.C. till end of Parthian empire (224 A.D.). For more than 400 years, these coins provide information about the kings, mint houses, eco-political conditions, clothes etc. for that time. In this research, the PIXE results of 9 Drachma coins belong to  Gozartes II and 6 coins belong to Khausro II are given. Different percentages in coins were observed. Eco-political analysis of Parthian era shows that high silver percentage in Gozartes II coins implies the good economical conditions in his period, and less silver percentage in Khausro II coins implies the economical weakness of his period due to 5-years war between Iran and Rome, which led to defeat of Iran.  

Volume 10, Issue 1 (10-2021)
Abstract

Septoria tritici blotch (STB) caused by Zymoseptoria tritici is one of the most important wheat diseases in the world and causes significant annual damage to wheat crops around the globe. The use of resistant cultivars is the most effective method for the management of this disease. Recently, the use of acquired systemic induced resistance has been proposed to manage wheat leaf blotch. In this study, the effect of salicylic acid (SA) on the relative changes of PAL and PR2 gene expression was investigated using qPCR technique. The expressions of catalase, peroxidase, and ascorbate peroxidase enzymes were also assessed in a sensitive wheat cultivar. Controlled and contaminated plants were sampled and compared at 0, 12, 24, 48, 96, and 240 hours after inoculation. The results showed that treatment with salicylic acid significantly reduced the level of disease compared to control plants. Comparison of gene expression patterns also showed that the expression of both PAL and PR2 genes in control and SA pre-treated plants increased after fungal inoculation; however, their expression was significantly higher (2.6 and 1.3 folds respectively for PAL and PR2) in plants treated with salicylic acid than the control. Moreover, treatment with salicylic acid significantly affected the activity of all three enzymes. It can be concluded that the high response of PAL and PR2 genes to salicylic acid pre-treatment, as well as increased activity of peroxidase along with the reduced activity of catalase and ascorbate peroxidase enzymes indicate the effective role of SA in inducing wheat resistance against STB.

Volume 15, Issue 7 (Supplementary Issue - 2013)
Abstract

Charcoal rot caused by Macrophomina phaseolina is an important disease of soybean throughout the world. To understand the spatial distribution of soybean charcoal rot incidence and M. phaseolina populations in Golestan Province, 172 soybean fields were surveyed for population density, in two successive years, and integrated with Geographic Information System (GIS). Each year, 60 fields were also surveyed for disease incidence. Propagule density was determined by assaying five 1-g subsamples of soil from each field using a size-selective sieving procedure. In the seasons of 2009-2010 and 2010-2011, disease incidence ranged from 0 to 97% and 3 to 91% with the highest in Gorgan and Aliabad, respectively. Total mean of disease incidence were 21.01 and 35.84 percent in the province. In the two sampling years, Sclerotia were recovered from 73.33 and 93.57% of the total fields. The average population density per gram of soil ranged from 0.65 to 14.31 and 4.7 to 16.9, respectively, with the highest levels in Aliabad in both years. Charcoal rot incidence was positively correlated with soil populations of M. phaseolina (r= 0.61 and r= 0.47, P= 0.01). Geostatistical analyses of the survey data showed that the influence range of propagule density and disease incidence was between 8,000 to 14,000 m. In general, no significant correlation could be found between soil factors and sclerotia numbers. But, higher average air temperatures and decreased precipitation may have a significant effect on disease intensity.

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