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Topic: Thale Cress

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	First Plant Genome Thrills Biologists: Science News Online, Dec. 16, 2000 (Site not responding. Last check: 2007-10-10)
		Tiny thale cress, or Arabidopsis thaliana, is the first plant to have almost all its DNA decoded.
		Hailed by many as plant biology's breakthrough of the decade, the unveiling of thale cress' genome, described in a set of papers in the Dec. 14 Nature, is expected to accelerate the pace of discovery in research fields ranging from molecular medicine to agriculture.
		Thale cress also was appealing for a full-genome study because scientists had assumed its DNA contains just one copy of most genes.
	www.sciencenews.org /20001216/fob1.asp (1132 words)

	Thale Cress, Common Wall Cress, recognition and eradication
		This short generational cycle makes Thale Cress ideal for genetic research and it has been the main plant used for work in Genetic Modification (GM) technology to develop herbicide-tolerant crops.
		The bacterium Agrobacterium tumefaciens is used as a vector to transfer foreign DNA into the cells of the Thale Cress to create new genetically modified Cultivars.
		As a cress, closely related to the mustards, the leaves are quite palatable, similar to Rockett, but milder - though it would take a while to assemble a meal from the thin pickings.
	www.dgsgardening.btinternet.co.uk /thalecress.htm (437 words)

	Thale Cress (Arabidopsis thaliana): Arable Plants - a field guide
		Thale Cress is a slender, erect plant that reaches 35cm in height, rarely more.
		Thale Cress is frequently associated with uncommon species of sandy soils, particularly in Breckland.
		Thale Cress is probably susceptible to many herbicides, and is a noncompetitive species that does not grow well in a fully-fertilised modern crop variety.
	www.arableplants.fieldguide.co.uk /?PP=species_account&SPID=22 (256 words)

	Thale cress - Weed information - HDRA Weed Management
		Biology: Thale cress flowers from April to May and again from September to October, although it may be found in flower throughout the year.
		In the UK, thale cress may appear to behave as a winter annual but winter and summer races are said to occur.
		Management: Thale cress is not considered a serious arable weed and where it occurs may be controlled by hoeing and surface cultivation.
	www.gardenorganic.org.uk /organicweeds/weed_information/weed.php?id=104 (517 words)

	New Page 1 (Site not responding. Last check: 2007-10-10)
		Thale cress is a small annual weed in the Mustard Family native to Europe and Asia but widely introduced throughout the world.
		In Montana Thale cress is uncommon in the western portion of the state.
		It is hoped that the modified Thale cress can be sowed into fields to locate the land mines which are then removed, making the field safe for agriculture.
	www.umt.edu /mnps/landmine_mustard.htm (384 words)

	Thale Cress
		Thale cress can produce a crop of seeds just four weeks after germinating.
		Thale cress, Arabidopsis thaliana, was named after the German physician Johann Thal (1542–83).
		A weed of cultivated ground, hedges and walls it is also known as Common Wall Cress.
	www.wildyorkshire.co.uk /naturediary/docs/2002/9/14.html (138 words)

	Growing Plastic, Alaska Science Forum
		The blueprint-gene must be present and be read before the cell can construct the enzyme-house.) Thale cress already has one of the necessary genes---gene A---so the researchers had to excise and transplant only the other two, genes B and C, from Al.
		To introduce the needed genes into the genome of thale cress, the researchers needed a plasmid, a circular piece of DNA found in bacteria.
		For this molecular surgery, they used the same restriction endonuclease to open up the plasmid that they used to cut out the genes.The cut plasmid and gene B were combined; since both gene B and the plasmid had been cut by the same molecular scalpel, they fit together like pieces of a jigsaw puzzle.
	www.gi.alaska.edu /ScienceForum/ASF11/1168.html (709 words)

	Air pollution gets up your nose
		They hope their work with thale cress (Arabidopsis thaliana) will ultimately help plant breeders to develop new seasonally-adapted crop varieties.
		Also, thale cress plants are small, so lots can be grown in a limited laboratory space.
		Many types of thale cress varieties are similar to some crop varieties in that they need vernalising before they will flower.
	www.nrp.org.uk /enews/edppara.htm (596 words)

	USATODAY.com - Watercress engineered to detect land mines (Site not responding. Last check: 2007-10-10)
		The company, Aresa Biodetection, has genetically engineered the normally bright green thale cress plant to turn red when it encounters even minute amounts of nitrogen dioxide leaking from buried land mines.
		The cress plant, Arabidopsis thaliana, is the guinea pig of plant biologists.
		The cress seeds would be sown by sprayers or crop dusters, then allowed to grow for the three to six weeks necessary for the pigment to develop.
	www.usatoday.com /news/science/2004-02-02-cress-mines_x.htm (547 words)

	CNN.com - Nature - Scientists complete first genetic map of a plant - December 13, 2000
		A spindly cousin of the mustard plant that thrives in dry, hilly climates in Europe, thale cress is an ideal subject in the genetic laboratory.
		Thale cress researchers still have plenty of mysteries ahead to unravel.
		Genetic research on the thale cress plant has already boosted yields of staple crops such as wheat, tomatoes and rice.
	edition.cnn.com /2000/NATURE/12/13/plant.genome/index.html (626 words)

	NASA - Exploration Systems - Molecular and Plant Physiological Analyses of the Microgravity Effects on Multigeneration ... (Site not responding. Last check: 2007-10-10)
		Arabidopsis thaliana (thale cress) will be grown in orbit for three generations (from seed to seed).
		A portion of the seeds will be returned to ISS for the second generation of thale cress plants for Multigen-2.
		The aim of Multigen-3 is to study circumnutation (the successive bowing or bending in different directions of the growing tip of the stems and roots) in thale cress.
	exploration.nasa.gov /programs/station/Multigen_lite.html (972 words)

	Article - Thale Cress by Arthur Lee Jacobson
		Thale Cress is a tiny, weak, very skinny, pale delicate herb.
		Of course its tiny "mouse-ear" leaves are mostly flat on the ground, thus dirty and slug-ridden, but the stem tips, including the elfin white flowers and tender young seedpods, taste good, even though they are so insubstantial that in order to gather a belly-full a person needs literally hundreds.
		This difficulty, plus the fact that many of its cousins have much the same flavor yet are bigger and about as common, explains the absence of Thale Cress from guides to edible wild plants.
	www.arthurleej.com /a-thalecress.html (472 words)

	Highbeam Encyclopedia - Search Results for cress (Site not responding. Last check: 2007-10-10)
		winter cress or upland cress, species of Barbarea, herbs of the family Cruciferae (mustard family).
		A Quaker herself, her most famous novel is The Friendly Persuasion (1945), about the conflicts felt by a Quaker farm family during the Civil War.
		Science & Technology: Salad days; It may look like an insignificant weed, but thale cress has a big secret: its genetic blueprint could be the key to advances in both crop breeding and human health.
	www.encyclopedia.com /searchpool.asp?target=cress (502 words)

	Guardian \| Mine's a cress sandwich (Site not responding. Last check: 2007-10-10)
		Aresa has developed a type of Thale cress that reacts to nitrogen dioxide or heavy metals in soil, signalling the presence of an unexploded landmine nearby.
		Aresa hopes the cress could be sown by planes on mine fields to aid detection and clearance.
		The GM cress would also be sterilised, so it could not seed in the wild.
	www.guardian.co.uk /print/0,,4921568-112160,00.html (130 words)

	Fool.com: Plant Genes Win Respect [News] December 14, 2000
		The decoding of the lowly weed Arabidopsis thaliana, commonly called thale cress, signals the next major step in the agricultural biotechnology revolution.
		Thale cress apparently has five pairs of chromosomes with 125 million base pairs of the DNA "letters" A, C, G, and T (adenine, cytosine, guanine, and thymine), compared to 23 chromosomes and an estimated 3.1 million base pairs in humans.
		Results show that 30% of the thale cress genes are very similar to their human counterparts, and that a number closely approximate either 150 or 289 human disease genes depending on your expert.
	www.fool.com /news/2000/plant001214.htm (630 words)

	Petal power: new gene yields unique blossoms: the altered Ultrapetala gene gives these thale cress flowers almost twice ... (Site not responding. Last check: 2007-10-10)
		She did her experiments using thale cress, or Arabidopsis thaliana.
		The test plants, for instance, also boasted shoots that were wider and more numerous than those of everyday thale cress and produced more flowers.
		She interbred her plants with experimental thale cress that had altered forms of these other interesting genes.
	www.findarticles.com /p/articles/mi_m3741/is_5_51/ai_101944078 (877 words)

	ExactAntigen PLANTS --- genes \| researchers \| webpages (Site not responding. Last check: 2007-10-10)
		ADH1 thale cress also called: alcohol dehydrogenase, alcohol dehydrogenase 1, f22k20_19, adh, f22k20 19, adh1 alcohol dehydrogenase 1 alcohol dehydrogenase, adh1 publications
		GAPA thale cress also called: gapa, gapa glyceraldehyde 3phosphate dehydrogenase a subunit glyceraldehyde3 phosphate dehydrogenase, glyceraldehyde 3phosphate dehydrogenase a subunit, glyceraldehyde3 phosphate dehydrogenase a subunit, gapa1 publications
		GAPC thale cress also called: gapc glyceraldehyde3 phosphate dehydrogenase c subunit glyceraldehyde3 phosphate dehydrogenase, gapc, t6k12_26, t6k12 26, glyceraldehyde3 phosphate dehydrogenase c subunit publications
	biomed.exactantigen.com /overall/plants.html (1184 words)

	Scientist's decode a plant's entire genome (Site not responding. Last check: 2007-10-10)
		Although only a small weed, thale cress has already played important roles in several important genetic advances in plants and the full decoding of its genome promises even more advances.
		Since thale cress is basically a small weed, it grows very quickly and has been an ideal plant for scientists to test ideas on how to genetically alter plants.
		Among other innovations first pioneered on the plant were methods of protecting wheat from diseases and genetic modifications that double the yield of oilseed rape.
	www.overpopulation.com /articles/2000/000056.html (292 words)

	Lead story 4
		The species employed is the cosmopolitan annual weed Thale Cress (Arabidopsis thaliana).
		Thale Cress grows rapidly from seed to flower in one to two months, and almost obligate inbreeding reduces the probability of the spread of potentially hazardous transgenes.
		The Copenhagen-based company, founded in 2001, regards the development of this GM-variant of Thale Cress as having significant humanitarian and environmental potential.
	www.plant-talk.org /Pages/lead4.html (663 words)

	Arabidopsis study to help understand wood formation
		He expects to define the roles of some of the protein-degrading enzymes (proteases) important to wood formation and, eventually, to identify genes that regulate that process.
		Beers has developed a method for using the annual weed thale cress (Arabidopsis thaliana) as a model for understanding how wood is formed.
		The basic developmental processes that lead to the formation of xylem, the wood-forming tissue in plants, should be the same in Arabidopsis as in trees, so Beers expects his findings to be applicable to all woody plants.
	www.eurekalert.org /pub_releases/2002-02/vt-ast022802.php (511 words)

	Death by Design
		They've chosen thale cress because it grows quickly and contains less DNA than other plants, making it easy to reproduce and investigate.
		In particular, the scientists test thale cress mutants—plants in which gene defects cause cell death to somehow go awry.
		Once they solve the case of thale cress, they'll have clues as to how resistance works in other crops.
	research.unc.edu /endeavors/win98/text/dangl.html (1323 words)

	BBSRC Life - Genomics and Beyond - Model species - Arabidopsis (Site not responding. Last check: 2007-10-10)
		In 2000 the publication of the genome of Thale cress - the first whole genetic sequence of a flowering plant - was a major breakthrough in our understanding of how plants work, and will offer significant opportunities to plant biologists and plant breeders for making plants easier to grow and healthier to eat.
		Arabidopsis thaliana (Thale cress), is a weedy relative of the mustard and cabbage plant families.
		It represents an invaluable genetic resource for plant scientists to understand more about evolution and plant biology, as it has a simple genome, can be easily grown in the laboratory, and is highly adaptable to growing conditions from the Arctic to the Equator.
	www.bbsrc.ac.uk /life/genomics/arab.html (388 words)

	Mine-sniffing Plants
		The plant in question is a small weed called Arabidopsis thaliana or thale cress.
		It's an annual plant and a thale cress seed can sprout and grow into a mature plant in just six weeks.
		Danish biologists Carsten Meier and Simon Østergaard, co-founders of Aresa Biodetection in Copenhagen, are re-engineering thale cress to turn red when exposed to the presence of a land-mine in the soil.
	www.acfnewsource.org /science/mine_sniffing_plants.html (774 words)

	How Roots Control Plant Shoots: Biologists Discover Gene That Helps Roots Limit Leaf Growth
		The study used a plant named Arabidopsis, commonly known as thale cress, which is frequently used in studies of plant genetics because it is small, easy to handle, lives only seven weeks from seed to seed, and fertilizes itself so mutant strains can be maintained as seeds.
		In the study, the biologists discovered the BPS1 gene and then demonstrated that it is required to prevent a plant from constantly producing the carotenoid byproduct that turns off leaf growth.
		First, they grew thale cress plants with the mutant form of BPS1 known as bps1.
	www.monsanto.co.uk /news/ukshowlib.phtml?uid=8221 (1140 words)

	[No title]
		BF T02275; SUP; Species: thale cress, Arabidopsis thaliana.
		BF T02812; HY5; Species: thale cress, Arabidopsis thaliana.
		It exhibits a compressed minor groove in the CC center and widened minor groove in the flanks [1] XX BF T01007; AG; Species: thale cress, Arabidopsis thaliana.
	www.cs.huji.ac.il /course/2003/bioskill/Ex2/class.dat (8969 words)

	BioNews Feature
		A thale cress seedling with the normal gene (above) produced four leaves plus two smaller cotyledons or embryonic leaves.
		Most plants are believed to have genes similar to those in thale cress, which is related to broccoli, cauliflower, Brussels sprouts, cabbage and mustard.
		To indicate what kind of hormone turned off leaf growth, Van Norman and Sieburth treated thale cress plants with tiny amounts of a herbicide named fluridone, which inhibits production of carotenoids.
	www.biology.utah.edu /bionews2.php?story=sieburth100404.txt (1174 words)

	[No title]
		Still in its early stages, the flower, called Thale Cress, is coded to change color when its roots come in contact with nitrogen-dioxide (NO2) evaporating from explosives buried in the soil.
		The modified Thale Cress is infertile and unable to spread its seeds, so the risk is minimal that the plant would spread to other areas of land, the company says.
		The company also hopes the Thale Cress can be used for detecting and cleaning soil that has found to be contaminated by heavy metals such as lead and copper, a major source of pollution in certain industrialized countries.
	www.mercola.com /2004/feb/11/gm_plants.htm (508 words)

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