Plant Transformation Via Agrobacterium Tumefaciens

Plant Transformation via Agrobacterium Tumefaciens compiles fundamental and specific information and procedures involving in vitro soybean transformation, which forms the basis for the Agrobacterium-mediated genetic manipulation of soybean using plant tissue culture. This method serves as one of the most preferred, reliable and cost-effective mechanism of transgene expression in both leguminous recalcitrant species and non-legume crops. The technology is favoured due to its simplicity, feasibility and high transformation rates that are so far achieved mostly in monocot plants and a few dicot genotypes. This book provides a comprehensive review of plant transformation which remains necessary for many researchers who are still facing protocol-related hurdles. Among some of the major topics covered in Plant Transformation via Agrobacterium Tumefaciens are the history and discovery of Agrobacterium bacterium, longstanding challenges causing transformation inefficiencies, types and conditions of explants, development of transgenic plants for stress resistance, and the role of transgenic plants on animal/human health, including the environment. Plant Transformation via Agrobacterium Tumefaciens helps the reader to understand how soybean, like many other orphan legume crops, faces the risk of overexploitation which may render the currently available varieties redundant and extinct should its narrow gene pool not improve. Plant transformation serves as a key technique in improving the gene pool, while developing varieties that are drought tolerant, have enhanced nutritional value, pest resistant and reduce the destruction by disease causing microorganims. This book is an essential foundation tool that is available for researchers and students to reinforce the application of Agrobacterium-mediated genetic transformation in soybean.

Plant Transformation Technologies is a comprehensive, authoritative book focusing on cutting-edge plant biotechnologies, offering in-depth, forward-looking information on methods for controlled and accurate genetic engineering. In response to ever-increasing pressure for precise and efficient integration of transgenes in plants, many new technologies have been developed. With complete coverage of these technologies, Plant Transformation Technologies provides valuable insight on current and future plant transformation technologies. With twenty-five chapters written by international experts on transformation technologies, the book includes new information on Agrobacterium, targeting transgenes into plant genomes, and new vectors and market systems. Including both review chapters and protocols for transformation, Plant Transformation Technologies is vitally important to graduate students, postdoctoral students, and university and industry researchers.

"Plant transformation technology has played a critical role in advancing biotechnology and fundamental research and evolved as a science. This book describes the breakthrough technologies in all aspects of plant transformation in the last 27 years, which "

Molecular Methods of Plant Analysis Concept of the Series The powerful recombinant DNA technology and related developments have had an enormous impact on molecular biology. Any treatment of plant analy sis must make use of these new methods. Developments have been so fast and the methods so powerful that the editors of Modern Methods of Plant Analy sis have now decided to rename the series Molecular Methods of Plant Analy sis. This will not change the general aims of the series, but best describes the thrust and content of the series as we go forward into the new millennium. This does not me an that all chapters apriori deal only with the methods of molecular biology, but rather that these methods are to be found in many chapters together with the more traditional methods of analysis which have seen re cent advances. The numbering of the volumes of the series therefore continues on from 20, which is the most recently published volume under the title Modern Methods of Plant Analysis.

Agrobacterium is a plant pathogen which causes the “crown-gall” disease, a neoplastic growth that results from the transfer of a well-defined DNA segment (“transferred DNA”, or “T-DNA”) from the bacterial Ti (tumor-inducing) plasmid to the host cell, its integration into the host genome, and the expression of oncogenes contained on the T-DNA. The molecular machinery, needed for T-DNA generation and transport into the host cell and encoded by a series of chromosomal (chv) and Ti-plasmid virulence (vir) genes, has been the subject of numerous studies over the past several decades. Today, Agrobacterium is the tool of choice for plant genetic engineering with an ever expanding host range that includes many commercially important crops, flowers, and tree species. Furthermore, its recent application for the genetic transformation of non-plant species, from yeast to cultivated mushrooms and even to human cells, promises this bacterium a unique place in the future of biotechnological applications. The book is a comprehensive volume describing Agrobacterium's biology, interactions with host species, and uses for genetic engineering.

Genetic transformation of plants has revolutionized both basic and applied plant research. Plant molecular biology and physiology benefit from this power fool, as well as biotechnology. This book is a review of some of the most significant achievements that plant transformation has brought to the fields of Agrobacterium biology, crop improvement and, flower, fruit and tree amelioration. Also, it examines their impact on molecular farming, phytoremediation and RNAi tools.

Agrobacterium tumefaciens is a soil bacterium that for more than a century has been known as a pathogen causing the plant crown gall disease. Unlike many other pathogens, Agrobacterium has the ability to deliver DNA to plant cells and permanently alter the plant genome. The discovery of this unique feature 30 years ago has provided plant scientists with a powerful tool to genetically transform plants for both basic research purposes and for agricultural development. Compared to physical transformation methods such as particle bomba- ment or electroporation, Agrobacterium-mediated DNA delivery has a number of advantages. One of the features is its propensity to generate a single or a low copy number of integrated transgenes with defined ends. Integration of a single transgene copy into the plant genome is less likely to trigger “gene silencing” often associated with multiple gene insertions. When the first edition of Agrobacterium Protocols was published in 1995, only a handful of plants could be routinely transformed using Agrobacterium. Agrobacterium-mediated transformation is now commonly used to introduce DNA into many plant species, including monocotyledon crop species that were previously considered non-hosts for Agrobacterium. Most remarkable are recent developments indicating that Agrobacterium can also be used to deliver DNA to non-plant species including bacteria, fungi, and even mammalian cells.

The broad host range pathogenic bacterium Agrobacterium tumefaciens has been widely studied as a model system to understand horizontal gene flow, secretion of effector proteins into host cells, and plant-pathogen interactions. Agrobacterium-mediated plant transformation also is the major method for generating transgenic plants for research and biotechnology purposes. Agrobacterium species have the natural ability to conduct interkingdom genetic transfer from bacteria to eukaryotes, including most plant species, yeast, fungi, and even animal cells. In nature, A. tumefaciens causes crown gall disease resulting from expression in plants of auxin and cytokinin biosynthesis genes encoded by the transferred (T-) DNA. Gene transfer from A. tumefaciens to host cells requires virulence (vir) genes that reside on the resident tumor-inducing (Ti) plasmid. In addition to T-DNA, several Virulence (Vir) effector proteins are also translocated to host cells through a bacterial type IV secretion system. These proteins aid in T-DNA trafficking through the host cell cytoplasm, nuclear targeting, and T-DNA integration. Genes within native T-DNAs can be replaced by any gene of interest, making Agrobacterium species important tools for plant research and genetic engineering. In this research topic, we provided updated information on several important areas of Agrobacterium biology and its use for biotechnology purposes.