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Topic: Orobanche

In the News (Fri 10 Jul 09)

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	Article By Pankaj Oudhia
		In India, losses due to Orobanche in tobacco crop alone are estimated at 30 to 35%.
		The title was Orobanche ramosa : A new problematic weed in Chhattisgarh and details are "Orobanche ramosa, an annual parasitic weed, is becoming a new problem for the tomato growers of Chhattisgarh since last 3-4 years.
		Orobanche is considered as problematic weed in many countries around the world.
	www.botanical.com /site/column_poudhia/221_newherb.html (735 words)

	OROBANCHE - THE BROOMRAPES by Larry W. Mitich
		Most weeds have seed weights ranging from about 0.1 g per 1000 seeds to about 3.0 g per 1000 seeds, and the lighter seeds are considered to have a decided advantage in dissemination (9).
		This is important in California, where the parasite often grows in abundance on weeds in harvested fields of cucumber (Cucumis sativus L.) and along unpaved roads separating old sugarbeet (Beta vulgaris L.) fields-two non-host crops, thus surviving from year to year (9).
		Giliarov, M.S. Orobanche ramosa on kok-saghyz in Russia.
	www-aes.tamu.edu /mary/brmrape/Br-iwwb.htm (2095 words)

	Nadjia Zermane, Jürgen Kroschel, T. Souissi, M. Kharrat: Field Survey on Orobanche Infestation of Faba Bean in Tunisia
		Moreover, 90 farmers concerned by the Orobanche problem were interviewed to learn about their knowledge of the parasitic weed, their perceptions of the Orobanche problem and the control methods used.
		Orobanche was present in [45]% of the surveyed faba bean fields.
		The infestation with Orobanche is considered by [70]% of the interviewed farmers as a very serious problem and [52]% of them observed an increasing infestation over time.
	www.tropentag.de /2002/proceedings/node72.html (546 words)

	Orobanche genus (Site not responding. Last check: 2007-09-20)
		Orobanche seeds are very small and easily separated from most crop seed grown in California.
		Obligate parasitic weeds: Orobanche ramosa L., and Orobanche minor Sm.
		Stout, G. A recurrence of broomrape (Orobanche ramosa L.) on tomato plants in California.
	www.cdfa.ca.gov /phpps/ipc/weedinfo/orobanche.htm (751 words)

	Orobanche (Broomrapes) (University of Paisley: Biodiversity Reference)
		Orobanche is a genus of wholly parasitic plants, attached to the roots of their hosts.
		In contrast from requiring urgent conservation, a very few Orobanche species are destructive arable weeds, especially in semi-arid parts of the world.
		In Britain, Orobanche species cannot be regarded as a significant agricultural problem.
	www-biol.paisley.ac.uk /bioref/Tracheophyta/Orobanche.html (2065 words)

	Animal Gene Renders Tobacco Resistant to Parasitic Weed
		Since the number of tubercles of O. aegyptiaca did not differ between transgenic and untransformed plants and parasite biomass was lower in genetically engineered plants, the researchers conclude that sarcotoxin IA first of all affects parasite growth after it has attached to the roots, and second, it does not inhibit the attachment itself.
		The researchers write in their publication that the resistance level of the genetically engineered tobacco plants fall short of the levels that would be required for reducing Orobanche infestations in the field.
		If they are able to increase Orobanche resistance in tobacco plants enough, Dr. Westwood’ team will test it against other parasitic weeds to see if it is generally useful against them as well.
	www.monsanto.co.uk /news/ukshowlib.phtml?uid=9690 (731 words)

	Orobanche (Site not responding. Last check: 2007-09-20)
		Orobanche is a parasitic plant that grows on other plants and uses their nutrients to grow.
		Its roots form a tight association with its host's root cells allowing it to intercept some of the sugars being passed from the leaves to the host's roo ts.
		Common plants that are parasitized by Orobanche species are cauliflower, cabbage, tomato, green and red peppers, broad beans, and clover, along with many more.
	www.plant.uoguelph.ca /research/plantbio/orobanch.htm (154 words)

	Progress on management of parasitic weeds - Abuelgasim Elzein and Jürgen Kroschel
		The damage caused by the parasites Orobanche on field and vegetable crops is significant in the Near East, South and East Europe and in various republics of the former Soviet Union.
		Orobanche: Several attempts and intensive research were made in different countries to screen for potential herbicides against Orobanche.
		In general, the most limiting factor in the use of the promising herbicides is their degree of selectivity among the crops at the required rate for parasite control, and the critical time of application, especially of the foliarly applied systemic herbicides.
	www.fao.org /DOCREP/006/Y5031E/y5031e0a.htm (15366 words)

	Infection of Tubercles of the Parasitic Weed Orobanche aegyptiaca by Mycoherbicidal Fusarium Species -- COHEN et al. 90 ...
		Biocontrol of Orobanche with mycoherbicidal fungi is a promising
		Infection of Orobanche tubercle tissue by hyphae of transgenic Fusarium oxysporum containing the green fluorescent protein gene (gfp) as visualized by confocal microscopy.
		Resorption of starch in Orobanche infected by Fusarium oxysporum.
	aob.oxfordjournals.org /cgi/content/full/90/5/567 (3996 words)

	NatureServe Explorer Species Index: Genus Orobanche
		AZ, CA, NM, NV, TX, UT Orobanche cooperi ssp.
		AZ, CA, NM, NV, UT Orobanche cooperi ssp.
		The species is present in the nation or subnation due to direct or indirect human intervention.
	www.natureserve.org /explorer/speciesIndex/Genus_Orobanche_115113_1.htm (914 words)

	Orobanche ramosa
		Foy, C. L., Jain, R., Jacobsohn, R. Recent approaches for chemical control of broomrape (Orobanche spp.).
		Holm, L., Doll, J., Holm, E., Pancho, J., and Herberger, J. Obligate parasitic weeds: Orobanche ramosa L., and Orobanche minor Sm.
		Branched Broomrape (1) Summary of biology, ecology and current status, (2) Protocols for movement of produce, machinery and livestock.
	weedman.horsham.net.au /weeds/Orobanche_ramosa/orobanche_ramosa_profile.htm (618 words)

	Marin CNPS: Orobanches of Marin (Site not responding. Last check: 2007-09-20)
		Orobanche bulbosa is parasitic on chamise, Adenostoma fasciculatum, in the chaparral of Mt. Tamalpais.
		Orobanche fasciculata is most common on Mt. Tamalpais in late spring where it is parasitic on shrubs.
		One rarely seen species of Orobanche is O. pinorum which (surprisingly) is parasitic on ocean spray, Holodiscus discolor.
	www.marin.cc.ca.us /cnps/Orobanche.html (213 words)

	PLANTS Profile for Orobanche uniflora (oneflowered broomrape) \| USDA PLANTS
		Orobanche uniflora L. Click on a thumbnail to view an image, or see all the Orobanche thumbnails at the PLANTS Gallery
		Orobanche uniflora L. Click on a scientific name below to expand it in the PLANTS Classification Report.
		Orobanche uniflora L. The related entities italicized and indented above are listed by the U.S. federal government or a state.
	plants.usda.gov /java/profile?symbol=ORUN (302 words)

	Orobanche californica in Orange County, California
		She thought they may be California Broom-Rape, Orobanche californica, but was not certain.
		Using her photographs as a guide, I thought it was Orobanche vallicola or Orobanche californica ssp.
		Though as she put it, it seems to be a "very, very rare and hard to find" form of it.
	homepage.mac.com /bugbob/ocw/orobanche/oro_californica.html (711 words)

	Genetic Mapping of the Or5 Gene for Resistance to Orobanche Race E in Sunflower -- Tang et al. 43 (3): 1021 -- Crop ...
		Genetic Mapping of the Or5 Gene for Resistance to Orobanche Race E in Sunflower -- Tang et al.
		Inheritance of resistance to Orobanche cumana in sunflower.
		Sunflower immunity to broomrape, downy mildew, and rust.
	crop.scijournals.org /cgi/content/full/43/3/1021 (5042 words)

	Molecular studies on Orobanche
		Zeid M, Madkour M, Koraiem Y, Nawar A, Soliman M, Zaitoun F. The optimization of polymerase chain reaction (PCR) for random amplified polymorphic DNA (RAPD) analysis in Orobanche was investigated and the results were applied to analysis of O. aegyptiaca, O. oxyloba, O. ramosa and three O. crenata collections gathered from different locations in Egypt.
		Genetic similarity among species was estimated on the basis of the percentage of common bands between species and a dendogram was constructed using the unweighted pair grouping method.
		Two primers were chosen as specific PCR primers to differentiate between the studied Orobanche species, The results of this study show that RAPDs can be used as a method for clarifying relationships between species of Orobanche.
	www.egeinfonet.i8.com /pub/1997/13.html (140 words)

	Branched Broomrape (Orobanche ramosa)
		In an earlier version of this brochure (1987), it was reported to be in New Zealand, however we have been informed by the New Zealand Ministry of Agriculture and Forestry that Orobanche ramosa does not occur in New Zealand and has never been established there.
		Mention of a trademark or a proprietary product does not constitute a guarantee or a warranty of the product by the Texas Agricultural Experiment Station, Texas Cooperative Extension and the U.S. Department of Agricultural and does not imply its approval to the exclusion of other products that also may be suitable.
		Therefore, bagging the uprooted plants in garbage bags and leaving the bags tied up in the sun will kill even more and will be a good disposal method.
	agenvsafety.tamu.edu /mary/brmrape/brmrape.htm (1359 words)

	Genome size evolution in holoparasitic Orobanche (Orobanchaceae) and related genera -- Weiss-Schneeweiss et al. 93 (1): ...
		Orobanche is the largest genus among the holoparasitic members
		Orobanche inferred from maximum likelihood using Phelypaea as outgroup.
		This is in contrast to the tetraploid accessions of O.
	www.amjbot.org /cgi/content/full/93/1/148 (5637 words)

	[No title] (Site not responding. Last check: 2007-09-20)
		cooperi Synonymy: Aphyllon cooperi Gray, Myzorrhiza cooperi (Gray) Rydb., Orobanche ludoviciana var.
		corymbosa Synonymy: Myzorrhiza corymbosa Rydb., Orobanche californica var.
		Synonymy: Myzorrhiza multiflora (Nutt.) Rydb., Orobanche ludoviciana var.
	www.csdl.tamu.edu /FLORA/cgi/ruled_html_query?colldir=kartesz/mgdata&collname=bonap98&query=Orobanche (544 words)

	Orobanche Photo Gallery
		Orobanche; eastern Anatolia; Photo June 2002 by Gerald Schneeweiss.
		This Orobanche species is the most common one in southern Germany and it is quite variable in size and coloration.
		All these photos were taken at the same location, Landsberg, Bavaria, Germany; June 2004 by Andreas S. Fleischmann.
	www.parasiticplants.siu.edu /Scrophulariaceae/Orobanche.Gallery.html (620 words)

	PLANTS Profile for Orobanche fasciculata (clustered broomrape) \| USDA PLANTS
		PLANTS Profile for Orobanche fasciculata (clustered broomrape)
		Click on a thumbnail to view an image, or see all the Orobanche thumbnails at the PLANTS Gallery
		View 5 genera in Orobanchaceae, 18 species in Orobanche
	plants.usda.gov /java/profile?symbol=ORFA (347 words)

	Publications
		Small broomrape (Orobanche minor) and Egyptian broomrape (Orobanche aegyptiaca) parasitization of red clover (Trifolium pratense).
		Expression of a defense-related 3-hydroxy-3-methylglutaryl CoA reductase gene in response to parasitization by Orobanche spp.
		Effect of sulfonylurea herbicides on early development of Egyptian broomrape (Orobanche aegyptiaca) in tomato (Lycopersicon esculentum).
	www.ppws.vt.edu /~westwood/Publications.htm (349 words)

	Orobanche: Northern and central European species (Site not responding. Last check: 2007-09-20)
		The broomrapes (Orobanche) belong to the most interesting plants in the world, and with their colourful flowers (ranging from bright yellow to violet or iridescent red), they are as beautiful as the much better known orchids.
		Many species show a wide variety in their overall appearance and the colour of their flowers.
		As yet, there is no book incorporating all European Orobanche species with full colour photographs, distribution maps and drawings.
	home.planet.nl /~seckel/kreutz/uk/orobanche.html (285 words)

	Flora Europaea Search Results (Site not responding. Last check: 2007-09-20)
		The results of your query have been truncated from 153 hits to 100
		Distribution: Bu Rs(K,E) ?Si Tu Orobanche alba Stephan ex Willd.
		Distribution: Au ?Be Cz Ga Ge He Hu ?It Ju Po Rm Rs(B,C,W,K,E) Orobanche ambigua Moris
	rbg-web2.rbge.org.uk /cgi-bin/nph-readbtree.pl/feout?GENUS_XREF=Orobanche&SPECIES_XREF= (147 words)

	The Strigolactone Germination Stimulants of the Plant-Parasitic Striga and Orobanche spp. Are Derived from the ...
		The Strigolactone Germination Stimulants of the Plant-Parasitic Striga and Orobanche spp.
		The seeds of parasitic plants of the genera Striga and Orobanche
		Mwakaboko AS (2003) Synthesis and biological evaluation of new strigolactone analogues as germination stimulants for the seeds of the parasitic weeds Striga and Orobanche spp.
	www.plantphysiol.org /cgi/content/full/139/2/920 (6695 words)

	DEBS WEB Plant Gallery: Ivy Broomrape (Orobanche hederae forma monochcroma), Hampshire (Site not responding. Last check: 2007-09-20)
		DEBS WEB Plant Gallery: Ivy Broomrape (Orobanche hederae forma monochcroma), Hampshire
		Copyright © D R Allan 1999-2007 Updated 16th February 2007
		Orobanche hederae forma monochroma Tapnage, Hampshire, 12th June 1999
	homepage.ntlworld.com /debbie.allan1/orohed.html (134 words)

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