
	Where results make sense

Topic: Phytophthora infestans

Related Topics

Phytophthora

Phytophthora ramorum

Irish potato famine

Protist

In the News (Sun 15 Nov 09)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	Olympus MIC-D: Brightfield Gallery - Potato Blight Fungus (Phytophthora infestans)
		Potato late blight, caused by the fungus Phytophthora infestans, is one of the most important potato diseases in the world.
		Although it was probably already carrying milder forms of the late blight fungus, it was not until 1844 that the virulent strain (speculated to be a single clonal genotype of P.
		infestans) arrived in Ostend, Belgium via a shipment of infected seed potatoes from the United States.
	www.olympusmicro.com /micd/galleries/brightfield/potatoblight.html (382 words)

	Mating type distribution and pathogenicity of Phytophthora infestans in Taiwan
		Taiwanese isolates of Phytophthora infestans were examined for mating types and pathogenicity to tomato and potato.
		Characteristics of sporangia of Phytophthora infestans from tomato and potato.
		The presence of two mating types in heterothallic isolates of Phytophthora infestans is a prerequisite for their sexual reproduction and an indication of the origin of the species (Gallegly and Galindo, 1960; Fry et al., 1993; Ko, 1994).
	ejournal.sinica.edu.tw /bbas/content/1998/1/bot91-06.html (2264 words)

	Potato late blight, (Site not responding. Last check: 2007-10-20)
		The disease is caused by a fungus-like organism, Phytophthora infestans, which is a specialised pathogen of potato and, to a lesser extent, tomato (another member of the plant family Solanaceae).
		When P. infestans sporangia are studied in laboratory conditions, they are found to germinate either by releasing zoospores or by producing a hyphal outgrowth.
		infestans gets established on the potato foliage then sporangia can be washed down into the soil to infect the tubers, or the tubers can be contaminated with sporangia during crop harvesting.
	helios.bto.ed.ac.uk /bto/microbes/blight.htm (1277 words)

	Michigan Potato Diseases - Late Blight (Site not responding. Last check: 2007-10-20)
		Phytophthora infestans, the causal agent of late blight, is not a true fungus but a water mold belonging to the phylum Oomycetes.
		Sporangia of Phytophthora infestans may be spread from infected plants in one field to healthy plants in surrounding fields by wind, splashed rain, mechanical transport and animals, thereby continuing the disease cycle.
		Phytophthora infestans requires two mating types, A1 and A2, to come into contact to produce a sexual spore known as an oospore.
	www.lateblight.org /lateblight.html (3169 words)

	Phytophthora infestans
		Phytophthora infestans causes serious losses of potato crops worldwide and is probably the most important pathogen of potato and tomato today.
		The branched sporangiophore, with swellings at the points where sporangia were attached are distinctive for Phytophthora infestans and useful for identification of this pathogen.
		Unfortunately, Phytophthora infestans is highly variable and all new cultivars with specific resistance eventually succumb to this pathogen.
	www.extento.hawaii.edu /Kbase/Crop/Type/p_infest.htm (998 words)

	ARS \| Publication request: The Population Structure of Phytophthora Infestans from the Toluca Valley of Central Mexico ...
		Populations of P. infestans collected from the commercial potato-growing region in the valley, the subsistance potato production area along the slopes of the Nevado de Toluca and from native Solanum species on the forested slopes of the volcano showed a high degree of genetic diversity.
		Technical Abstract: The population structure of Phytophthora infestans in the Toluca Valley of central Mexico was assessed using 170 isolates collected from cultivated potatoes and the native wild Solanum species S. demissum and S. x edinense.
		infestans populations sampled in the Toluca Valley in 1997 were highly variable, and almost every single isolate represented a unique genotype, based on the analysis of 165 AFLP marker loci.
	www.ars.usda.gov /research/publications/publications.htm?seq_no_115=148004 (715 words)

	Teagasc - Project Report - 4148 - Genetic Analysis Of Irish Populations Of Phytophthora Infestans
		Phytophthora infestans (Mont.) de Bary, the causal agent of potato late blight is best known for its role in the great Irish famine of 1845-1849 which resulted in the deaths of over 1 million people.
		Potato late blight, caused by the oomycete fungus Phytophthora infestans (Mont.) de Bary, is the notorious fungus responsible for the Irish potato famine of 1845-'49 and it is still the most important disease affecting the potato worldwide.
		infestans were determined by their reaction on leaf discs of indicator plants possessing R genes 1 to 11.
	www.teagasc.ie /research/reports/crops/4148/eopr-4148.htm (4359 words)

	Phytophthora Bibliography, S.B. Goodwin, USDA-ARS (Site not responding. Last check: 2007-10-20)
		Carter, G. A., Smith, R. M., and Brent, K. Sensitivity to metalaxyl of Phytophthora infestans populations in potato crops in south-west England in 1980 and 1981.
		Characterization of Phytophthora infestans in Wisconsin from 1993 to 1995.
		The genetics of Phytophthora infestans: Segregation of allozyme markers in F2 and backcross progeny and the inheritance of virulence against potato resistance genes R2 and R4 in F1 progeny.
	www.btny.purdue.edu /USDA-ARS/Goodwin_lab/results/Phytoph_biblio.html (4377 words)

	Ethnobotanical Leaflets
		After the initial outbreak of the disease there was a major search for the underlying cause which led to a controversy with one group attributing it to natural causes, such as the weather, and the other group saying it was caused by a fungus (Dowley 1997).
		infestans in the 1840s was from Mexico to the United States and that a single genetic individual was transported to Europe and subsequently to the rest of the world.
		Miller, J. S., Hamm, P. B., and Johnson, D. Characterization of the Phytophthora infestans population in the Columbia Basin of Oregon and Washington from 1992 to 1995.
	www.siu.edu /~ebl/leaflets/blight.htm (2222 words)

	The BSPP - Publications - Molecular Plant Pathology - Pathogen Profiles - Phytophthora infestans enters the genomics era
		Phytophthora infestans, cause of late-blight, is the most devastating disease of potato world-wide.
		Recent years have seen a dramatic intensification in molecular biological studies of P. infestans, including the development of novel tools for transformation and gene silencing and the resources for genetical, transcriptional and physical mapping of the genome.
		Phytophthora infestans (Mont.) de Bary—Kingdom Chromista, Phylum Oomycota, Order Peronosporales, Family Peronosporaceae, Genus Phytophthora, of which it is the type species.
	www.bspp.org.uk /publications/pathprofiles/pathprofile11.htm (302 words)

	Towards the complete genome sequence of the oomycete Phytophthora infestans
		Phytophthora infestans is an oomycete (a fungus-like stramenopile eukaryote) that causes the late blight disease of potato and tomato.
		The P. infestans research community has set up a goal to complete the sequence of the 237 Mb genome of this devastating plant pathogen before the year 2005.
		infestans is the most experimentally tractable oomycete, being amenable to classical and molecular genetic analysis, transformation, and other laboratory tools.
	www.oardc.ohio-state.edu /phytophthora/genome.htm (589 words)

	[No title]
		Coverless petri dishes with water suspensions of sporangia and zoospores of Phytophthora infestans were embedded in sandy soil in eastern Washington in July and October of 2001, and July of 2002 to quantify longevity of spores in water under natural conditions.
		Understanding the survivability of P. infestans propagules in surface water, especially under the semi-arid environmental conditions that prevail in the Columbia Basin, is essential to understanding the risk of P. infestans infection and possible dispersal from standing water.
		Exposing zoospores of P. infestans to visible light for 15 min after an artificial irradiation treatment was not sufficient time for photoreactivation repair of damaged DNA, however, the ability to germinate was restored with a 1 h exposure to visible light after irradiation (32).
	www.wsu.edu:8080 /~djohnsn/index_files/Survwater.doc (7230 words)

	Oomycete posters
		infestans indicated that the region was prone to duplication, transposition, deletion, and other rearrangements which could be related to the mechanism of evolution of the apparent balanced lethals; such aberrations were not observed for loci unlinked to mating type.
		infestans was transformed with constructs carrying strong oomycete promoters fused to the inf1 coding sequence in both antisense and sense orientation.
		Phytophthora sojae infects roots and stems of soybean plants, primarily by means of zoospores swimming in water in the soil or on the soil.
	www.fgsc.net /asilomar/oomycete.html (1867 words)

	Phytophthora Blight of Cucurbits and Pepper
		Phytophthora blight, caused by the fungus-like pathogen Phytophthora capsici, was detected on pepper, pumpkin, squash, gourds and eggplant in British Columbia, for the first time in 2004.
		Phytophthora blight is a serious threat to production of susceptible crops worldwide, particularly cucurbits and solanaceous plants.
		Phytophthora blight is a difficult disease to control, particularly once established in the soil as oospores.
	www.agf.gov.bc.ca /cropprot/pcapsici.htm (1866 words)

	[No title]
		The aim of this study is to clarify the genetic structure of a novel Phytophthora population attacking Solanum quitoense in the highland tropics of Ecuador and to gain new insight into the dynamics and complexity of this important plant pathogen.
		Genetic Evidence for a Role of Phytophthora infestans protease inhibitors in disease Jing Song, Nicolas Champouret, Joe Win, Miaoying Tian, and Sophien Kamoun Department of Plant Pathology, The Ohio State University-OARDC, Wooster, OH 44691 The oomycete Phytophthora infestans causes late blight, a reemerging and ravaging disease of potato and tomato.
		Phytophthora sojae is a hemibiotroph, which causes root rot to soybean resulting in billions of dollars in losses to farmers annually.
	pmgn.vbi.vt.edu /workshop_abs/asilomar_2005_program_1.doc (5824 words)

	Phytophthora infestans Genome Project
		Late blight caused by Phytophthora infestans is a devastating disease of potato and tomato in the U.S. and worldwide.
		Late blight is now considered a re-emerging disease and has reached epidemic proportions in North America and Europe due to the development of resistance to the fungicide metalaxyl in populations of the pathogen and the widespread occurrence of new genotypes.
		Phytophthora species are responsible for billions of dollars of losses on hundreds of different food crops worldwide.
	www.tigr.org /tdb/e2k1/pima1/index.shtml (468 words)

	Phytophthora infestans Summary
		infestans is best known as a pathogen of the potato, this fungus also attacks the tomato and a number of other plants belonging to the family Solanaceae.
		infestans passes the winter in infected seed tubers kept in potato storages or in the soil of the potato field to be planted.
		Phytophthora infestans is a water mould, that causes the serious disease of the potato, late blight or potato blight.
	www.bookrags.com /Phytophthora_infestans (1319 words)

	Seed Borne Late Blight of Potato
		Effect of inoculum density of Phytophthora infestans on percent seed piece decay of potato cultivar Russet Burbank in Oregon and Washington.
		Effect of inoculum density of Phytophthora infestans on emergence of seed pieces of potato cultivar Russet Burbank in Oregon and Washington.
		infestans, do not enhance stand establishment in the presence of the late blight pathogen and may indirectly allow the transmission of the pathogen from the seed piece to the sprout (6).
	www.plantmanagementnetwork.org /pub/php/management/potatolate (3659 words)

	Host-Pathogen Interactions
		Specialization for growth of the oomycete pathogen Phytophthora infestans on tomato is characterized by a biotrophic growth habit and increased pathogenicity.
		infestans aggressiveness, induction of the 10 PR genes tested is not directly related to the different host response towards highly pathogenic (tomato-specialized) and moderately pathogenic (non-specialized) isolates of P.
		Phytophthora infestans is a hemibiotroph having both a biotrophic and a necrotrophic phase.
	ppathw3.cals.cornell.edu /fry/HostPath.htm (1233 words)

	New Disease Reports - Natural occurrence of Phytophthora infestans on woody nightshade (Solanum dulcamara) in Ireland
		infestans in Ireland belongs to the new population sensu Spielman et al.
		Phenotypic and genotypic characterisation of Northern Ireland isolates of Phytophthora infestans.
		A second world-wide migration and population displacement of Phytophthora infestans.
	www.bspp.org.uk /ndr/jan2002/2001-48.asp (478 words)

	Developmental Biology
		Isolation and expression of a H+-ATPase gene from Phytophthora infestans.
		infestans appears to be encoded by a single gene, which is most similar to genes from algae and to a lesser degree from plants.
		infestans are tomato-specialized, and are characterized by a biotrophic growth habit and increased pathogenicity to tomato.
	ppathw3.cals.cornell.edu /fry/devbiol.htm (1383 words)

	PAG-XII: (W247) FUNCTIONAL GENOMICS OF PHYTOPHTHORA INFESTANS INTERACTIONS WITH SOLANACEOUS PLANTS (Site not responding. Last check: 2007-10-20)
		The oomycete Phytophthora infestans causes late blight of potato and tomato and is arguably the most devastating pathogen of solanaceous crops.
		infestans genes that encode secreted proteins, are up-regulated during infection, and are undergoing diversifying selection.
		To facilitate an integrated analysis of pathogen and plant data, the information generated by this project is deposited in two sister databases, PFGD (www.pfgd.org) and SolGD (www.solgd.org), that are publicly accessible resources.
	www.intl-pag.org /12/abstracts/W54_PAG12_247.html (311 words)

	Patterns of Diversifying Selection in the Phytotoxin-like scr74 Gene Family of Phytophthora infestans -- Liu et al. 22 ...
		infestans isolate 90128, and the potato one with isolate 88069.
		Profiling and quantifying differential gene transcription in Phytophthora infestans prior to and during the early stages of potato infection.
		A gene encoding a protein elicitor of Phytophthora infestans is down-regulated during infection of potato.
	mbe.oxfordjournals.org /cgi/content/full/22/3/659 (6717 words)

	Sporangium-Specific Gene Expression in the Oomycete Phytopathogen Phytophthora infestans -- Kim and Judelson 2 (6): ...
		Purine metabolism and differential inhibition of spore germination in Phytophthora infestans.
		Survival of Phytophthora infestans sporangia exposed to solar radiation.Phytopathology 90:78-84.
		The pipg1 gene of the oomycete Phytophthora infestans encodes a fungal-like endopolygalacturonase.
	ec.asm.org /cgi/content/full/2/6/1376 (4888 words)

	Advance in Molecular Mechanism of Potato Resistance to Phytophthora Infestans \| World Potato Congress
		Abstract: To outline the recent advance on molecular respect of the potato resistance to Phytophthora infestans, this paper emphasizes on the new achievements and findings in location of dominant alleles of R genes, mapping of quantitative trait loci (QTL) for field resistance, molecular mechanism between host and P. infestans, defense-related gene cloning and genetic improvement.
		The perception of P. infestans by its host, and the ability of the pathogen to avoid or overcome the host’s defense, implies a complex and dynamic communication network between the interaction organisms.
		Isolation of potato genes that are induced during an early stage of hypersensitive response to Phytophthora infestans.
	www.potatocongress.org /sub.cfm?source=314 (3653 words)

	IngentaConnect Genotypic Analysis of Russian Isolates of Phytophthora infestans ...
		Phytophthora infestans samples were collected during 1997 and 1998 at multiple sites in Russia from Sakhalin Island in the Far East across Siberia (nine sites, 160 isolates) to the Moscow region (four sites, 325 isolates).
		infestans near Moscow in 1997 and 1998 was highly diverse with 15 unique genotypes (including both mating types) among a sample of 18 isolates.
		Phytophthora infestans from the Moscow Region, Siberia and Far East" title="post to CiteUlike">Post to CiteUlike
	www.ingentaconnect.com /content/bsc/jph/2001/00000149/00000010/art00642 (409 words)

Try your search on: Qwika (all wikis)