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Variation in Polyamine Content among 12 Pollinated Wheat Genotypes under Drought Stress Condition

Open Journal of Geology 2017年第8期7卷 1094-1109页

作者： Mahdi Seyedsalehi Parisa Sharifi Ombretta Paladino gassan hodaifa Elba C. Villegas Randa M. Osman Department of Environmental Engineering Science and Research Branch Islamic Azad University Tehran Iran Department of Agronomy Faculty of Agriculture Urmia University Urmia Iran Department of Civil Chemical and Environmental Engineering Università di Genova Genoa Italy Department of Molecular Biology and Biochemical Engineering Chemical Engineering Area University of Pablo de Olavide Seville Spain Laboratory of Function-Structure and Protein Engineering Center for Research on Biotechnology Autonomous University of Morelos State (UAEM) Cuernavaca Mexico Department of Chemical Engineering and Pilot Plant National Research Centre Cairo Egypt

The present work aims to study the drought stress effects on polyamine content and its relationship with growth and development in seeds, during cell division (from the beginning and until 17 days after pollination) and grain filling (until reaching the physiological maturity) stages. Factorial experiment based on Randomized Complete Block (RCB) design was carried out with three replications. Two factors of the experiment were considered: the level of irrigation (irrigation without and with drought stress during cell division stage and with drought stress during grain filling stage) and the level of wheat genotype (drought-resistant, semi-resistant and sensitive genotypes). As control treatment, soil moisture content of the field was considered. For drought-stress treatment, the 50% of the soil moisture content in control treatment was established. According to the experimental results, Putrescine content value is higher in control treatment which develops seeds of drought-resistant genotypes than that are registered for semi-resistant and sensitive genotypes. Both drought stress treatments induced significant rises in putrescine amount in the different genotypes of the study. The rises of putrescine content in sensitive and semi-resistant genotypes, however, were higher than in resistant ones, and the highest rise in putrescine content appeared in manning semi-resistant genotype during the stage of grain filling (27 days after pollination). Exerting drought stress in both stages of cell division and grain filling led to significant increase in spermine and spermidine contents of developing seeds of entire genotypes of the study. The highest spermidine content during grain filling stage occurred in sensitive genotypes of Shark and Tevee’s, and the lowest occurred in semi-resistant genotype of Sabalan. The highest spermine content during cell division stage, though, happened in semi-resistant genotype of manning. In fact, spermine and spermidine act as analogous to p

关键词： Polyamines Drought Wheat Randomized Complete Block (RCB)

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Gastroparesis among Type 1 and Type 2 Diabetic Patients in the United Arab Emirates

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Journal of Diabetes Mellitus 2014年第2期4卷 96-106页

作者： gassan Darwiche Safaa Kasim Mohammed Nesreen Aldawi Sijomol Skaria Yohannes Tesfa Department of Internal Medicine Skane University Hospital Lund University Lund Sweden Department of Radiology Sheikh Khalifa Hospital Ajman United Arab Emirates Rashid Centre for Diabetes and Research Ajman United Arab Emirates

Aims: Delayed gastric emptying (GE)may have a major effect on the management of diabetic patients by causing upper gastrointestinal symptoms, impaired oral drug absorption and contributing to poor blood sugar control. Although the United Arab Emirates (UAE) has one of the highest prevalence of diabetes in the world, studies focusing on the prevalence of diabetes gastroparesis among these diabetics have never been reported previously. The aim of this study was to investigate gastroparesis among randomly selected Emirati type 1 and type 2 diabetic patients referred to a national diabetes center in the UAE. Methods: The study was designed as a controlled, single-blinded study. Using a standardized ultrasound technique, GE was studied in thirty-one randomly recruited type 1 and type 2 diabetic patients and ten normal healthy volunteers. The gastric emptying rate (GER) was estimated and expressed as the percentage reduction in antral cross-sectional area from 15 to 90 min after the ingestion of a semisolid breakfast meal. Results:In comparison to healthy volunteers, diabetic patients showed overall significantly wider mean values of the fasting as well as the postprandial antral areas. The mean value of GER in these Emirati diabetic patients was estimated at 17%, which was less than half of that in the healthy volunteers (50%). Statistically the difference was highly significant (p 32%. Consequently, 71% (22 of 31) of the diabetic patients in this study had more or less pronounced delays in GER (gastroparesis).Conclusions:The results from the present study indicate a higher prevalence of gastroparesis among randomly selected Emirati type 1 and type 2 diabetic patients, than in any other study previously published around the world. This is in line with previous reports about the high prevalence of diabetes complications among UAE diabetics. A larger study is needed to confirm these results.

关键词： Diabetes Mellitus Gastric Emptying Ultrasonography United Arab Emirates

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阳光防护整理剂索拉特(Solartex)的实践

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国际纺织导报 1997年第3期25卷 70-72页

作者： M.Fssel U.gassan 吕英智 Pfersee化学公司

基于紫外线吸收剂在诸多工业领域中的应用实践实验,开发出一类新型产品—Solartex(遮阳类纺织品整理剂)。这种整理剂可用于许多方面(例如应用于防雨性织物),对不同的纺织品进行遮阳整理。本文就其应用、效果和保养处理作一报道。

关键词：整理剂光防护汽车用纺织品紫外线防护系数针织物护肤织物紫外线吸收剂孔隙度防紫外织物结构

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