نتایج جستجو برای: epsps
تعداد نتایج: 1524 فیلتر نتایج به سال:
Genetically modified (GM) crops expressing insecticidal and herbicide-tolerant traits provide a new approach to agriculture production, but concerns about food safety were often raised by the public. The present research shows findings of nutritional assessment ZDAB3 Cry proteins (Cry1Ab Cry2Ab) EPSPS protein (G10evo-EPSPS). key nutrients anti-nutrients maize examined contrasted with those its ...
یکی از مؤثرترین راه‌های ایجاد گیاهان مقاوم به علفکش گلایفوسیت، دستورزی ژن کد کننده آنزیم EPSPS به منظور کاهش میل ترکیبی گلایفوسیت به این آنزیم است. EPSPS از آنزیم‌های مسیر شیکیمات بوده که مسئول ساخت اسیدهای آمینه حلقوی و نیز انواع متابولیت‌های ثانویه در گیاهان و باکتری‌ها است. بدون حضور آنزیم فوق، موجود قادر به ادامه حیات نخواهد بود. در تحقیق حاضر یکی ازدومین‌های مهم جهت اتصال آنزیم EPSPS که اس...
EPSP synthase is the target enzyme of glyphosate herbicides. Due to extensive use glyphosate, it very important obtain EPSPS genes with high resistance for development transgenic crops. GR79-EPSPS a class I certain isolated from glyphosate-contaminated soil. After more than 1000 generations, Y40I substitution was identified, and had nearly 1.8-fold decrease in Km [PEP] 1.7-fold increase Ki[glyp...
The recombinant gene was amplified from the chromosomal DNA of genetically-modified (GM) soybeans and identified as epsps encoding 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS) which renders glyphosate resistance. The epsps structural gene was introduced in the pET28(a) plasmid for its expression in Escherichia coli BL21(DE3). It was confirmed that the maximal productivity of the EPSPS pr...
The herbicide glyphosate became widely used in the United States and other parts of the world after the commercialization of glyphosate-resistant crops. These crops have constitutive overexpression of a glyphosate-insensitive form of the herbicide target site gene, 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS). Increased use of glyphosate over multiple years imposes selective genetic pres...
The lateral posterior nucleus (LPN) is innervated by two different morphological types of cortical terminals that originate from cortical layers V and VI. Here we describe two distinct types of excitatory postsynaptic potentials (EPSPs) that were recorded in the LPN after stimulation of corticothalamic fibers. These types of EPSPs differed in amplitude, latency, rise time, and response to incre...
Weed populations can have high genetic plasticity and rapid responses to environmental selection pressures. For example, 100-fold amplification of the 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS) gene evolved in the weed species Amaranthus palmeri to confer resistance to glyphosate, the world's most important herbicide. However, the gene amplification mechanism is unknown. We sequenced t...
کلزا یکی از مهمترین گیاهان تولید کننده روغن در جهان می¬باشد. امروزه بهینه¬سازی کاشت، داشت و برداشت این گیاه مورد توجه قرار گرفته است. یکی از مشکلات کاشت کلزا علف¬های هرز و کنترل آنهاست. ازمیان روش¬های مرسوم و موثردر کنترل علف¬های هرز می¬توان به استفاده از علف¬کش¬های قوی با طیف وسیع عمل، نظیر گلایفوسیت، اشاره کرد. گلیفوسیت یک علف¬کش غیر انتخابی با دامنه¬ی عملکرد وسیع می¬باشد که آنزیم 5- انول پیر...
1. The mechanisms regulating the flow of sensory signals and their modification by synaptic interactions in the dorsal column nuclei are incompletely understood. Therefore, we examined the interactions between EPSPs evoked by stimulation of dorsal column and corticofugal fibres in the dorsal column nuclei cells using an in vitro slice technique. 2. Dorsal column EPSPs had briefer durations at d...
Using an eye-attached isolated brain stem preparation of a turtle, Pseudemys scripta elegans, in conjunction with whole cell patch techniques, we recorded intracellular activity of accessory optic system neurons in the basal optic nucleus (BON). This technique offered long-lasting stable recordings of individual synaptic events. In the reduced preparation (most of the dorsal structures were rem...
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