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Plasmid miniprep. 0.8% agarose gel ethidium bromide-stained.. A plasmid preparation is a method of DNA extraction and purification for plasmid DNA.It is an important step in many molecular biology experiments and is essential for the successful use of plasmids in research and biotechnology.
Agroinfiltration using a promoter::GUS construct in Nicotiana benthamiana" with TBSV p19 (right leaf disc) and without TBSV p19 (left leaf disc).. It is quite common to coinfiltrate the Agrobacterium carrying the construct of interest together with another Agrobacterium carrying a silencing suppressor protein gene such as the one encoding the p19 protein from the plant pathogenic Tomato bushy ...
Water purification combines a number of methods to produce potable or drinking water. Downstream processing refers to purification of chemicals, pharmaceuticals and food ingredients produced by fermentation or synthesized by plant and animal tissues, for example antibiotics, citric acid, vitamin E, and insulin.
The term plasmid was coined in 1952 by the American molecular biologist Joshua Lederberg to refer to "any extrachromosomal hereditary determinant." [14] [15] The term's early usage included any bacterial genetic material that exists extrachromosomally for at least part of its replication cycle, but because that description includes bacterial viruses, the notion of plasmid was refined over time ...
It involves breaking open the cells, removing proteins and other contaminants, and purifying the DNA so that it is free of other cellular components. The purified DNA can then be used for downstream applications such as PCR, [2] sequencing, or cloning. Currently, it is a routine procedure in molecular biology or forensic analyses.
Plant transformation vectors are plasmids that have been specifically designed to facilitate the generation of transgenic plants.The most commonly used plant transformation vectors are T-DNA binary vectors and are often replicated in both E. coli, a common lab bacterium, and Agrobacterium tumefaciens, a plant-virulent bacterium used to insert the recombinant DNA into plants.
The pGreen plasmids are vectors for plant transformation. They were first described in 2000 as components of a novel T-DNA binary system. [1] The supporting web page [2] provides supplementary information and ongoing support to researchers to request their plasmid resources. As these plasmids have been taken up by the research community, the ...
The vir helper plasmid contains the vir genes that originated from the Ti plasmid of Agrobacterium. These genes code for a series of proteins that cut the binary vector at the left and right border sequences, and facilitate transfer and integration of T-DNA to the plant's cells and genomes, respectively. [4]