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Topic: Transgenic plants

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Ecological impact of transgenic plants

Plant improvement

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Transformation (genetics)

	Encyclopedia: Transgenic plants
		Transgenic plants are plants that have been genetically engineered using recombinant DNA techniques to make plants with new characteristics.
		Transgenic plants are produced by adding one or more genes to a plants genome, using a process called transformation.
		Transgenic plants have been developed for a variety of reasons: longer shelf life, disease resistance, herbicide resistance, and pest resistance.
	www.nationmaster.com /encyclopedia/Transgenic-plants (535 words)

	Phytoremediation - Using transgenic plants to clean up contamination
		Transgenic plants of both types have been created and are being tested in the lab and greenhouse, but as of this writing have not been field tested.
		Transgenic plants were first field tested in the United States in 1986, and thousands of research field tests have since taken place in the U.S., Canada and Europe under reasonable regulatory regimes.
		Under the first, transgenic plants of six specific crops (corn, soybean, tomato, tobacco, cotton and potato) can be field tested merely upon notifying the agency 30 days in advance, provided the plants did not contain any potentially harmful genetic sequences and the applicant provided certain information and submitted annual reports of test results.
	www.molecularfarming.com /phyto.html (4663 words)

	Transgenic Plants
		There are three general types of transgenic plants; those with genes to improve the quality of the product, those with genes to allow them to resist disease or herbivory (consumption by herbivores, usually insects), and plants with genes that allow them to be resistant to the effects of specific
		cotton and 40% of the corn being grown were transgenic.
		hybridization is so much more worrisome is that it has the potential to create so many more transgenic plants.
	www.biotech100.com /biotechnology_encyclopedia/transgenic_plants.htm (2445 words)

	RNA RECOMBINATION IN VIRUS RESISTANT TRANSGENIC PLANTS (Site not responding. Last check: 2007-10-07)
		With this in mind, we have focused our attention on the possibility that the segment of the viral genome expressed in the virus resistant transgenic plant may be incorporated into the genome of other viruses that may challenge the transgenic plant in the field.
		Transgenic plants were constructed in which the CCMV transgene was similar to that described above but lacked 69, 83 or 214 nucleotides of the 3' terminal sequence.
		These plants, which were not resistant to the wild type virus, were challenged with the same inoculum that had yielded viable recombinants in the previous experiment (Greene and Allison, 1994).
	www.nbiap.vt.edu /brarg/brasym96/allison96.htm (1563 words)

	02.01.2005 - Transgenic plants remove more selenium from contaminated soil than wild-type plants, new field tests show
		The plant is tricked into absorbing selenate because it is chemically similar to sulfate, an essential nutrient for the plant.
		The three types of transgenic plants and the wild-type control plants were transplanted into four 33-by-1 meter field plots, two that contained contaminated sediment from the San Luis Drain and two that contained clean soil.
		Moreover, the GS plants seemed particularly tolerant of the contaminated soil, growing 80 percent as well as the GS plants planted in clean soil.
	www.berkeley.edu /news/media/releases/2005/02/01_plantremediation.shtml (1185 words)

	JYI Volume Five Features: Biochemical Techniques to Produce Transgenic Plants (Site not responding. Last check: 2007-10-07)
		Transgenes can be inserted between the boundary regions of the BIBAC or other binary vectors through the use of restriction enzymes and recombinant DNA technology.
		Although all of the grown plants are known to contain T-DNA from between the boundary regions of the vector through antibiotic selection, it is not yet known if the gene inserted into the vector during the recombinant step or not.
		PCR is also used as a detection technique to determine if a plant is transgenic, aiding the understanding of the natural spread of transgenic crops in the wild.
	www.jyi.org /volumes/volume5/issue6/features/pattanayak.html (2870 words)

	Transgenic Tomato
		Transgenic plants showed an increase in fruit number and yield in the first year trial compared to wild-type 'Rutgers' and azygous 37-81^, but no differences were observed among the three genotypes in the second year trials.
		AB: Transgenic plants were produced that expressed a wide range of randomly chosen sequences of the tripartite tomato spotted wilt virus (TSWV) RNA genome or its complement.
		Transgenic plants containing the CAT gene flanked by both of these regions showed the same temporal pattern of accumulation of CAT and PG mRNA, and steady-state levels of the transgene mRNA were equivalent to 60% of the endogenous PG mRNA on a per gene basis.
	www.nal.usda.gov /pgdic/cris-icar/tomato.html (14138 words)

	Transgenic Plants
		In this respect, it is easier to produce transgenic plants than transgenic animals.
		The resistant plants produced three times as much fruit as the sensitive plants (front row) and the same as control plants.
		The transgene was a highly-expressed sodium/proton antiport pump that sequestered excess sodium in the vacuole of leaf cells.
	users.rcn.com /jkimball.ma.ultranet/BiologyPages/T/TransgenicPlants.html (973 words)

	articles on transgenic plants - Masses of information
		Transgenic plants are crops which have been genetically modified with...Find thousands of free online definitions and reference guides at TheFreeDictionary.com.
		callus and nontransgenic plants, the extent of ploidy changes in transgenic plants is exacerbated, perhaps due to the...
		Transgenic plants had increased cytokinin breakdown (30 to 45% of...
	www.flower-global.com /articles/articles-on-transgenic-plants.html (330 words)

	CONTROL OF TOMATO SPOTTED WILT VIRUS USING TRANSGENIC PLANTS THAT PRODUCE VIRUS-SPECIFIC MONOCLONAL ANTIBODIES (Site not responding. Last check: 2007-10-07)
		The RNA expression level of the transgenic plants correlate with the virus resistance level.
		The resistant transgenic plants will be examined in Western blot hybridization and for resistance to other tospoviruses.
		It was recently reported that transgenic plants expressing a monoclonal antibody against the coat protein of a tombusvirus have been produced.
	www.endowment.org /pr/p0396pr1.htm (496 words)

	transgenic plants
		The paper focuses on the use of transgenic plants in agriculture, discussing the benefits and potential hazards of GM technology.
		The workshop was held in Maryland between 31st January and February 3rd, 1999, and focuses on the potential impact of transgenic crops (in particular those with pest-resistant genes) on the environment.
		This report examines the bioconfinement of genetically engineered plants, animals, microbes and fungi, with particular attention given to transgenic fish and shellfish, trees, grasses and microbes, as many of these species are currently under US federal regulatory evaluation.
	agrifor.ac.uk /browse/cabi/dff328c504eadbcbe186bf19cf2ac653.html (7080 words)

	PAG-IX: ARE TRANSGENIC PLANTS NORMAL? (Site not responding. Last check: 2007-10-07)
		The goal of our investigation is to identify if this phenotypical change has been caused directly by the expression of the inserted gene or via a mutation in the plant genome of the transgenic plant associated with the transformation process.
		RDA is a subtractive DNA technique allowing a significant fraction of the plant genome to be compared between two closely related plant lines and to isolate DNA differences between two types of plants.
		The identification of DNA alterations in the genome of transgenic plants will be important to obtain detailed information about the regions in the plant, which are labile and alter during transformation.
	www.intl-pag.org /9/abstracts/P3a_06.html (292 words)

	Transgenic Crops: An Introduction and Resource Guide (Site not responding. Last check: 2007-10-07)
		The goal of this web site is to provide balanced information and links to other resources on the technology and issues surrounding transgenic crops (also known as genetically modified or GM crops).
		The site's authors are engaged in plant genetics research and teaching at Colorado State University.
		They receive no funds from companies involved in transgenic crop development, nor are they affiliated with groups campaigning against such crops.
	www.colostate.edu /programs/lifesciences/TransgenicCrops (231 words)

	Transgenic Plants: Current Innovations and Future Trends
		Major advances in transgenic plant technologies in recent years have generated a plethora of potential applications in agriculture and other areas (food safety, vaccine delivery etc).
		One unique feature of the book is its focus on the future of transgenic plants.
		And exciting applications such as edible vaccines and functional genomics are will also be part of the future of transgenic plants.
	www.horizonpress.com /hsp/books/gmp.html (282 words)

	Silencing of a viral RNA silencing suppressor in transgenic plants -- Savenkov and Valkonen 83 (9): 2325 -- Journal of ...
		RNA from T1 progeny plants (lanes 6 and 7) of a transgenic line (GUS1) expressing the GUS marker gene were included as negative controls.
		transgene mRNA and PVA genomic RNA in transgenic plants undergoing recovery.
		Guo, H. and Garcia, J. Delayed resistance to plum pox potyvirus mediated by a mutated RNA replicase gene: involvement of a gene-silencing mechanism.
	vir.sgmjournals.org /cgi/content/full/83/9/2325 (5642 words)

	Cytokinin-Deficient Transgenic Arabidopsis Plants Show Multiple Developmental Alterations Indicating Opposite Functions ...
		Wild-type and 35S:AtCKX2 plants reached the six-leaf stage at 13 DAG, and 35S:AtCKX1 transgenic plants reached the six-leaf stage at 15 DAG.
		of cortex cells was identical in wild-type and transgenic roots.
		It was hypothesized that STP1 is an elongation-promoting
	www.plantcell.org /cgi/content/full/15/11/2532 (8720 words)

	Genetically Modified Plants (GMP), Transgenic Plants, Genetic engineering, Biotechnology (Site not responding. Last check: 2007-10-07)
		Genetically modified plants are created by the process of genetic engineering that allows scientists to move genetic material between organisms with the aim of changing their characteristics.
		For example, genes from bacteria, viruses, or animals may be transferred into plants to produce genetically modified plants having changed characteristics.
		Regeneration of whole plants capable of transmitting the incorporated target gene to the next generation.
	www.teriin.org /gmp/gmp.htm (533 words)

	Transgenic Plants Remove More Selenium From Contaminated Soil Than Wild-type Plants, New Field Tests Show
		With Just A Sprinkle, Plants Soak Up More Selenium (March 1, 2004) -- Because of their ability to sop up selenium, some plants have been enlisted in efforts to clean up soils and wastewater that have an excess of this potentially toxic element.
		Promiscuous Plants May Spread Genes To Weeds (September 3, 1998) -- Crops engineered to contain genes that give them resistance to pests or the ability to produce lots of seeds, could pass these genes to their weedier cousins producing hybrid strains of super-weeds,...
		UGA Scientists Engineer Yellow Poplar Trees That May Help Clean Up Toxic Mercury Pollution (November 1, 1998) -- University of Georgia researchers have genetically engineered yellow poplar trees giving them the ability to absorb toxic mercury from soil, convert the toxin to a relatively inert form, and release...
	www.sciencedaily.com /releases/2005/02/050205102915.htm (1399 words)

	Deliberate release and marketing of Transgenic Plants (Site not responding. Last check: 2007-10-07)
		Deliberate releases of transgenic plants in the period 1999-2004 (Database)
		Molecular characterisation of the genetic maps of commercial transgenic plants
		Notifications for placing transgenic plants on the EU Market under Directive 90/220/EEC (table)
	www.biosafety.be /TP/TPMenu.html (80 words)

	A Practical Guide to Containment - Greenhouse Research with Transgenic Plants and Animals (Site not responding. Last check: 2007-10-07)
		Information about handling transgenic plants in greenhouses is relatively sparse.
		This 60-page Guide is intended as a simple and convenient reference on appropriate biosafety and containment levels for GMO research conducted in greenhouses.
		This Guide was written so that anyone who works in a greenhouse that houses transgenic materials will be better informed about the purpose of containment, the variety of methods used to achieve it, and the facilities and practices that satisfy the requirements of established guidelines and regulations.
	www.isb.vt.edu /cfdocs/greenhouse_manual.cfm (176 words)

	Nat' Academies Press, Transgenic Plants and World Agriculture (2000)
		Transgenic Plants and Human Health and Safety, pp.
		Funds for Research on Transgenic Crops Â— The Balance Betwee..., pp.
		The Open Book page image presentation framework is not designed to replace printed books.
	books.nap.edu /books/NI000227/html/index.html (192 words)

	US FDA/CFSAN - Biotechnology
		FDA Proposes Draft Guidance for Industry for New Plant Varieties Intended for Food Use November 19, 2004
		DRAFT Guidance: Recommendations for the Early Food Safety Evaluation of New Non-Pesticidal Proteins Produced by New Plant Varieties Intended for Food Use.
		Draft Guidance for Industry: Use of Antibiotic Resistance Marker Genes in Transgenic Plants - September 1998
	vm.cfsan.fda.gov /~lrd/biotechm.html (681 words)

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