نتایج جستجو برای: genetically transformed roots
تعداد نتایج: 173445 فیلتر نتایج به سال:
We evaluated the molecular, anatomical and physiological properties of a soybean line transformed to improve drought tolerance with an rd29A:AtDREB1A construct. This construct expressed dehydration- responsive element binding protein DREB1A from the stress-inducible rd29A promoter. The greenhouse growth test included four randomized blocks of soybean plants, with each treatment performed ...
Tumor angiogenesis, the development of new blood vessels, genes does not inhibit VEGF induction under low oxygen is a highly regulated process that is controlled genetically conditions. In contrast to the c-Raf-1/MAP kinase pathway, by alterations in oncogene and tumor suppressor gene exhypoxia increases phosphatidylinositol 3-kinase (PI 3-kinase) pression and physiologically by the tumor micro...
Since 1990s genetically modified foods began to appear in the market place. The most common genetically modified products are soy bean, corn, cotton and canola and the most important genetically modified characteristics are herbicide tolerance and insect resistance. Worries about safety of genetically modified foods led to establishment of labeling rules. Since 1997 based on regulations of Euro...
Rous sarcoma virus-transformed hamster BHK fibroblasts express a virus-induced cell surface antigen undetectable in cells either transformed by unrelated viruses or infected by transformation-defective strains of Rous sarcoma virus. To clarify whether this antigen plays any role in the process of malignant transformation or is expressed at the cell surface only as a consequence of the acquisiti...
Species of Orobanchaceae parasitize the roots of nearby host plants to rob them of water and other nutrients. Parasitism can be debilitating to the host plant, and some of the world's most pernicious agricultural pests are parasitic weeds. We demonstrate here that interfering hairpin constructs transformed into host plants can silence expression of the targeted genes in the parasite. Transgenic...
Complex Multiplication (CM) method is a frequently used method for the generation of elliptic curves (ECs) over a prime field Fp. The most demanding and complex step of this method is the computation of the roots of a special type of class polynomials, called Hilbert polynomials. However, there are several polynomials, called class polynomials, which can be used in the CM method and have much s...
Genetically encoded fluorescent and bioluminescent reporters are now widely used for imaging and understanding of intracellular signaling in response to extracellular stimuli in real time in single living cells. Primary cultures are a valuable tool, and are often preferred over transformed or immortalized cell lines, since they are biologically more relevant and important in biomedical research...
Phosphomannose isomerase (PMI), an enzyme not present in many plants, catalyzes the reversible interconversion of mannose 6-phosphate and fructose 6-phosphate. Plant cells lacking this enzyme are incapable of surviving on synthetic medium containing mannose. Plants derived from sugar beet and corn cells that had been genetically modified to express the E. coli manA gene encoding PMI were evalua...
Heat shock (HS) at 40 degrees C was given to the root system of Nicotiana tabacum wild type (WT) and to HSIPT transgenic plants transformed with the bacterial cytokinin biosynthesis gene isopentenyltransferase (ipt) cloned behind the heat shock 70 promoter from Drosophila melanogaster. HS increased cytokinin concentrations in roots and leaves of transgenic plants. The effect was smaller in WT p...
Ewa Kochan3, H alina W ysokinskab, A leksander Chmiel3 and B arbara G rabiasb a L aboratory of Biosynthesis of Drugs, Medical University, Muszynskiego 1, 90-151 Lodz, Poland b D epartm ent of Biology and Pharm aceutical Botany, Medical University, Muszynskiego 1, 90-151 Lodz, Poland Z. N aturforsch. 54c, 11-16 (1999); received July 15/September 9, 1998 H yssopus officinalis, Agrobacterium rhizo...
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