
	Where results make sense

Topic: Arceuthobium

In the News (Mon 28 Dec 09)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	Encyclopedia: Arceuthobium
		The genus Arceuthobium, commonly called Dwarf Mistletoes, are a genus of forty six species of parasitic plants found in both North America, Central America and across Eurasia in Coniferous forest.
		The female flowers of Arceuthobium are also very reduced as shown by this picture of A. This slide of Arceuthobium pusillum shows the cortical strands that run longitudinally along the host cambial layer and the sinkers that enter the xylem radially.
		This picture of Arceuthobium tsugense on shore pine is typical where the mistletoe endophyte is confined to a specific region of the host stem (marked by the swelling).
	www.nationmaster.com /encyclopedia/Arceuthobium (862 words)

	Chapter 5: Biogeography and Paleogeographic History
		Arceuthobium microcarpum is confined to five general regions: (1) the north rim of the Grand Canyon, Arizona, (2) the San Francisco Peaks and nearby Kendrick Peak, Arizona, (3) the Pinaleno (Graham) Mountains, Arizona, (4) the White Mountains, Arizona, and adjacent Mogollon Mountains, New Mexico, and (5) the Sacramento Mountains, southern New Mexico (an extreme disjunct).
		Because dwarf mistletoes have not colonized eastern and southern pines, the occurrence of Arceuthobium pusillum on eastern spruces is perplexing.
		Arceuthobium tsugense is widespread on Tsuga heterophylla in the temperate rain forests along the northwestern coast of North America, and A.
	www.rmrs.nau.edu /publications/ah_709/ch05.html (3322 words)

	Chapter 2
		The genus Arceuthobium is a member of the plant family Viscaceae and is a clearly defined group of small (generally less than 20 cm high), variously colored flowering plants that are aerial parasites on conifers of the families Pinaceae and Cupressaceae.
		Arceuthobium has been previously included in the subfamily Viscoideae of the family Loranthaceae, however, the subfamilies Loranthoideae and Viscoideae are now generally considered to have family status (Loranthaceae and Viscaceae) although there does not appear to be one single characteristic used to separate them.
		Arceuthobium oxycedri, the subject of this paper, was the first dwarf mistletoe species described and was originally included in the genus Viscum.
	www.rms.nau.edu /publications/ciesla_bal/chapter2.html (5175 words)

	Chapter 15: Molecular Systematics
		With the inclusion of Arceuthobium abietis-religiosae and A.
		The results from electrophoretical examination of the three host–forms of Arceuthobium tsugense (mountain hemlock, western hemlock, and shore pine) indicate that the population infecting Tsuga mertensiana is genetically distinct and deserving of taxonomic recognition as A.
		Arceuthobium pollen (likely A. pusillum) is known from as far south as Georgia from the Pleistocene Epoch (Watts 1975 and table 5.10), hence dwarf mistletoes have occupied the eastern United States in past geological times.
	www.rmrs.nau.edu /publications/ah_709/ch15.html (6781 words)

	Mistletoe (Site not responding. Last check: 2007-11-03)
		Arceuthobium are well known to most silviculturalists in the Southwest because they diminish the cash value of Douglas fir and ponderosa pine, the regions most commercially important conifers60.
		Arceuthobium species have a unique and interesting life cycle that is well adapted to surviving in coniferous forests.
		Germination of pollen of the dwarf mistletoe Arceuthobium americanum.
	www.biologicaldiversity.org /swcbd/papers/mistltoe.html (7570 words)

	Brooklyn Botantic Garden: Plant Records
		Bonga, J. The morphology and anatomy of holdfasts and branching radicles of Arceuthobium pusillum cultured in vitro Canad.
		Kuijt, J. Morphological aspects of parasitism in the dwarf mistletoes (Arceuthobium) Univ. Calif.
		Tainter, F. H.; French, D. The role of wound periderm in the resistance of eastern larch and jack pine to dwarf mistletoe Canad.
	www.bbg.org /cgi/biblio/refquery.cgi?Arceuthobium (703 words)

	Search Results for arceuthobium - Encyclopædia Britannica
		Best known in this category are the active ballists, which forcibly eject their seeds by means of various mechanisms.
		In the fruit of the dwarf mistletoe (Arceuthobium) of the western United States,...
		Mistletoes are semiparasitic seed plants that feed on trees and obtain water and mineral salts by sending rootlike structures (haustoria) into vascular tissue of the inner bark.
	www.britannica.com /search?query=arceuthobium&submit=Find&source=MWTAB (207 words)

	abstract
		This literature review provides a general overview of the dwarf mistletoes, Arceuthobium spp., with emphasis on those species which affect host plants which are members of the family Cupressaceae.
		Characteristics of the biology of this group of plants which make them amenable to pest management are; they are obligate parasites, are generally host specific, have a long life cycle and generally require 4-6 years to produce seeds, have a relatively slow rate of spreads and the presence of infection is easily recognized.
		Three species of Arceuthobium infect members of the conifer family Cupressaceae; A. azoricum, A. juniperi-procera and A.
	www.rms.nau.edu /publications/ciesla_bal/abstract.html (726 words)

	Gel Examples (Site not responding. Last check: 2007-11-03)
		Arceuthobium (dwarf mistletoe, Viscaceae), diploid shoot tissue, stained for PGM (phosphoglucomutase).
		Arceuthobium (dwarf mistletoe, Viscaceae), diploid shoot tissue, stained for ADH (alcohol dehydrogenase).
		Arceuthobium (dwarf mistletoe, Viscaceae), diploid shoot tissue, stained for MDH (malate dehydrogenase).
	www.science.siu.edu /plant-Biology/PLB420/IsozymeTechniques/Gel.exercise.html (323 words)

	Dwarf Mistletoes
		Chihuahua pine dwarf mistletoe, Arceuthobium gillii, infects Chihuahua pine; shoots are greenish brown; it causes open witches’ brooms and is characterized by tall, openly branched male plants compared to small, densely branched female plants; it is found throughout Chihuahua pine habitat in southeastern Arizona.
		Western spruce dwarf mistletoe, Arceuthobium microcarpum, infects Engelmann spruce, blue spruce and bristlecone pine; shoots are green to purplish; it is distinguished by its restricted distribution in Arizona and New Mexico, small dense witches’ brooms and high mortality in hosts; it is found on the mountains of northern, central and southeastern Arizona.
		True fir dwarf mistletoe, Arceuthobium abietinum, infects white fir; shoots are yellow-green to yellow; infections cause flagging, a distinctive symptom on true fir, that results from dying branches; it is found in northern and southeastern Arizona.
	cals.arizona.edu /pubs/diseases/az1309 (1125 words)

	Dwarf Mistletoes: Biology, Pathology, and Systematics
		Description: Arceuthobium (dwarf mistletoes), a well defined but morphologically reduced genus of the family Viscaceae, is parasitic on Pinaceae in the Old and New Worlds and on Cupressaceae in the Old World.
		The morphological characteristics that delimit species of Arceuthobium are often cryptic and may be apparent only for short periods of the life cycle.
		Most species are sympatric with other members of the genus somewhere in their distribution and flowering periods often overlap, but species appear to be isolated reproductively.
	www.treesearch.fs.fed.us /pubs/4699 (404 words)

	Dr. Robert Tinnin - Students (Site not responding. Last check: 2007-11-03)
		Effects of infection by dwarf mistletoe (Arceuthobium americanum) on the population dynamics of lodgepole pine (Pinus contorta).
		The effect of dwarf mistletoe (Arceuthobium americanum) upon a portion of the carbon budget of lodgepole pine (Pinus contorta).
		An investigation of infection mechanisms of Arceuthobium campylopodum.
	www.orgbio.pdx.edu /faculty/tinnin/grads.html (193 words)

	Shrubs of Wisconsin: Arceuthobium pusillum, eastern dwarf mistletoe (Site not responding. Last check: 2007-11-03)
		Shrubs of Wisconsin: Arceuthobium pusillum, eastern dwarf mistletoe
		Arceuthobium pusillum easily qualifies as our smallest shrub.
		Although this species is parasitic, it does produce a little chlorophyll and it does photosynthesize, although not enough to sustain itself without a host.
	www.uwgb.edu /biodiversity/herbarium/shrubs/arcpus01.htm (111 words)

	A phylogeny of all species of Arceuthobium (Viscaceae) using nuclear and chloroplast DNA sequences -- Nickrent et al. ...
		Hawksworth F. Wiens 1972 Biology and classification of dwarf mistletoes (Arceuthobium).
		Hawksworth F. Wiens 1976 Arceuthobium oxycedri and its segregates A.
		Lohan A. Wolfe 1998 A subset of conserved tRNA genes in plastid DNA of nongreen plants.
	www.amjbot.org /cgi/content/full/91/1/125 (6959 words)

	Loranthus europaeus - Hutchinson encyclopedia article about Loranthus europaeus (Site not responding. Last check: 2007-11-03)
		Used in many Western countries as a Christmas decoration, it also featured in the pagan religion Druidism.
		The seeds of the European mistletoe are dispersed by birds, but the dwarf mistletoe (Arceuthobium pusillum) of North America shoots out its ripe seeds at 100 kph/60 mph as far as 15 m/16 yd.
		Mistletoes lose water more than ten times as fast as other plants in order to draw nutrients to themselves; as a result, the dwarf mistletoe causes the loss of 20 million cubic metres of wood fibre a year.
	encyclopedia.farlex.com /Loranthus+europaeus (162 words)

	Arceuthobium spp. (non-European) (Site not responding. Last check: 2007-11-03)
		In the western USA and Mexico, almost all species of Abies, Picea, Tsuga and Larix are parasitized to some degree by Arceuthobium spp.
		Hawksworth, F.G. (1987) Paleobotany and evolution of the dwarf mistletoes (Arceuthobium).
		Nickrent, D.L. (1986) Allozymic relationships among Mexican taxa of Arceuthobium (dwarf mistletoes, Viscaceae).
	sll.bibul.slu.se /html/sll/eppo/EDS/E-ARESP.HTM (1757 words)

	Botany Photo of the Day: Picea glauca and Arceuthobium pusillum
		White spruce is typically a tree of the boreal forest (although not exclusively).
		After germinating on the twigs of the spruce tree, this parasite invades the host with root-like structures that penetrate into the bark and wood of the spruce branch.
		UBC BGCPR is a department of the Faculty of Land and Food Systems within The University of British Columbia.
	www.ubcbotanicalgarden.org /potd/2005/08/picea_glauca_an.php (413 words)

	Dwarf mistletoe, Arceuthobium (Site not responding. Last check: 2007-11-03)
		Dwarf mistletoes belong to the genus Arceuthobium (Family Viscaceae).
		These species have scale-like leaves, and the vegetative plant is often bright yellow or golden, i.e., totally lacking chlorophyll.
		This is Arceuthobium abietinum growing from stems of California red fir, Abies magnifica.
	www.botgard.ucla.edu /html/botanytextbooks/lifeforms/parasiticplants/a0233tx.html (52 words)

	dwarf mistletoe -- Encyclopædia Britannica
		There are three important types: American (Phorodendron species), European (Viscum album), and dwarf (Arceuthobium species).
		It is a miscellaneous collection of plants that has been variously classified to include as few as 5 or as many as 21 families.
		In the fruit of the dwarf mistletoe (Arceuthobium) of the western United States, a very high osmotic pressure (pressure accumulated by movement of water across cell membranes principally in only one direction) builds up that ultimately leads to a lateral...
	www.britannica.com /eb/article-9031647 (643 words)

	Plant Profile for Arceuthobium tsugense ssp. tsugense (hemlock dwarf mistletoe) (Site not responding. Last check: 2007-11-03)
		View all Arceuthobium thumbnails at the PLANTS Gallery
		View 4 genera in Viscaceae, 19 species in Arceuthobium, 2 subspecies in Arceuthobium tsugense
		Arceuthobium tsugense (Rosendahl) G.N. Jones – hemlock dwarf mistletoe
	plants.usda.gov /cgi_bin/plant_profile.cgi?symbol=ARTST2 (196 words)

	Dwarf Mistletoe (Site not responding. Last check: 2007-11-03)
		Black spruce showing loss of apical dominance and enlarged side branch that was infected with dwarf mistletoe.
		Cortical strands and sinkers of dwarf mistletoe in cross section of conifer branch.
		Dwarf mistletoe, Arceuthobium americanum, on Jack pine from Manatoba, Canada.
	www.plpa.agri.umn.edu /courses/plpa3003/labphotos/dwarf_mistletoe.htm (49 words)

	Viscaceae Notes for Plant Taxonomy
		The ovules never actually become separate from the placenta and never develop a testa [aka seed coat].
		Pollination, at least of Arceuthobium, is apparently by insects, though which insects is not known for most species.
		The reason that all species are thought to be insect pollinated is that the pollen is spiny and both the staminate and pistillate flowers emit odors.
	herbarium.usu.edu /taxa/viscaceae.htm (306 words)

	Info and facts on 'Arceuthobium' (Site not responding. Last check: 2007-11-03)
		Genus ((biology) taxonomic group containing one or more species) :
		Arceuthobium (Genus of chiefly American plants parasitic on conifers)
		Species ((biology) taxonomic group whose members can interbreed)
	www.absoluteastronomy.com /encyclopedia/a/ar/arceuthobium.htm (334 words)

	BSA Plant Images Online - Staminate inflorescences of Arceuthobium pusillum (eastern dwarf mistletoe, Viscaceae)
		Staminate inflorescences of Arceuthobium pusillum (eastern dwarf mistletoe, Viscaceae) emerging from the branch of its fl spruce host (Picea mariana, host needles ca.
		Among all the mistletoes, Arceuthobium has the greatest economic impact on human activity because of the damage these parasites inflict on commercially important forest trees.
		Whereas traditional classification of these plants has proven difficult owing to extreme reduction and lost of morphological features, molecular characters have yielded a well-resolved phylogeny.
	www.botany.org /plantimages/ImageData.asp?IDN=abot91-1 (160 words)

Try your search on: Qwika (all wikis)