نتایج جستجو برای: transferred to nicotina tabacum plant gene transfer was performed by agrobacterium

تعداد نتایج: 12629212  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1995
J Escudero G Neuhaus B Hohn

Agrobacterium tumefaciens is a Gram-negative, soil-borne bacterium responsible for the crown gall disease of plants. The galls result from genetic transformation of plant cells by the bacteria. Genes located on the transferred DNA (T-DNA), which is part of the large tumor-inducing (Ti) plasmid of Agrobacterium, are integrated into host plant chromosomes and expressed. This transfer requires vir...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه لرستان - دانشکده ادبیات و زبانهای خارجی 1393

rested on sociocultural theory (sct), this study attempted to examine the effect of written corrective feedback (wcf) followed by producing written languaging on developing writing accuracy over new tasks. to this aim, two intact iranian efl classes at the low-intermediate level were randomly assigned to two experimental groups: direct (n = 25) and indirect (n = 25). both groups wrote on a numb...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - پژوهشکده علوم انسانی و اجتماعی 1390

this study attempts to investigate the effect of peers’ revision in comparison to that of the teacher, and whether peers’ comments and teachers’ comments facilitate students’ revision? if yes, which one is more effective? also attempts have been made to see which aspects of language are more highlighted by peers versus teachers when commenting. besides, it is investigating the student’s attitud...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده ادبیات و زبانهای خارجی 1392

abstract i the purpose of this study was to launch a thorough investigation concerning the possibility of differing orientations to the writing proficiency construct by native and non-native english speaking teacher raters. it mainly revolved around the international english language testing system (ielts) that is widely administered and employed as a measure of general proficiency in englis...

دهستانی کلاگر, علی, سلیمانی, الهام, شاهین کلیبر, بهزاد, محسنی, آزاده, نعمت زاده, قربانعلی,

Salinity as one of the most important stresses disturbs favorable growth conditions of the plants leading to several metabolic disorders such as reactive oxygen species (ROS). Monodehydroascorbate reductase (MDHAR) with FAD (Flavin adenine dinucleotide) co-factor is one of the key enzymes in Glutathione-ascorbate pathway which reduces monodehydroascorbate (MDHA) radicals. In this study MDHAR ge...

Journal: :علوم گیاهان زراعی ایران 0
فریبا ابوئی مهریزی دانشجوی دکتری اصلاح نباتات گرایش ژنتیک مولکولی و مهندسی ژنتیک، گروه زراعت و اصلاح نباتات، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج علیرضا عباسی دانشیار، گروه زراعت و اصلاح نباتات، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج حسین هنری دانشیار، گروه زیست شناسی، دانشگاه امام حسین(ع) هوشنگ علیزاده استادیار، گروه زراعت و اصلاح نباتات، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج

bacillus anthracis as a spore-forming bacterium is the causative agent for anthrax. three proteins from b. anthracis including protective antigen (pa), lethal factor (lf) and edema factor (ef) are causative factors of this bacteria. to produce plant-based vaccine, fusion protein of pa 4 domain and lf 1 domain via furin cleavage site joined to subunit b vibrio cholera toxin (ctb) as an inducer o...

پایان نامه :وزارت علوم، تحقیقات و فناوری - پژوهشگاه شیمی و مهندسی شیمی ایران - پژوهشکده شیمی تجزیه و معدنی 1390

hydrochlorothiazide (hct) is a diuretic agent which is shown to be effective in the treatment of hypertension. literature reports have demonstrated that urinary excretion data may be used to assess the bioavailability of various formulations containing this thiazide. also hct consumption by the athletes is one of the drugs which should be regulated by world anti-doping agency (wada), because of...

Journal: :Bioscience, biotechnology, and biochemistry 1998
H Kanzaki T Kagemori S Asano K Kawazu

A convenient and quantitative bioassay method for evaluating the efficiency of plant transformation by Agrobacterium tumefaciens is important to search plant transformation inhibitors, possible biochemical probes for study on its mechanism. Our previously reported method, in which the plant transformation had been detected by the expression of β-glucuronidase in transformed plants, was improved...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم انسانی 1385

the present study was carried on to investigate the use of face-keeping strategies in reaction to complaints by male and female in two different cultures, persian and american english. to see if apology strategies are affected by cultural, contextual preferences and gender of interlocutors in two distinct languages of persian and american english. the hypotheses to be tested were 1) ifids, acce...

Ali Dehestani, Behnaz Dolatabadi Gholamali Ranjbar Masoud Tohidfar

Fusarium wilt caused by Fusarium oxysporum f.sp. Lycopersici is one of the major obstacles to the production of tomato which causes huge losses in tomato products worldwide. In order to increase the tolerance to this disease, a triple structure containing PR1, chitinase and glucanase genes controlled by 35S promoter was transferred to tomato. Eight days after planting on pre-culture me...

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