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Topic: Orobanchaceae


In the News (Thu 17 Dec 09)

  
  OhioLINK ETD: Randle, Christopher
The evolution and expression of rbcL in holoparasitic sister genera, harveya hook.
Harveya and Hyobanche (Orobanchaceae) are holoparasitic genera native to southern Africa.
Molecular sequence data from the chloroplast and nucleus were used to test hypothesized relationships among these species, and the evolution of floral characteristics, host-plant ranges, and geographical origins.
www.ohiolink.edu /etd/view.cgi?osu1085582568   (424 words)

  
 Orobanchaceae - Wikipedia, the free encyclopedia
Orobanchaceae, or the broomrape family, is a family of flowering plants of the order Lamiales, with about 25 genera and more than 200 species.
This family has no economic importance, except for some species being harmful to feed crops.
Lathraea has traditionally been placed in the Orobanchaceae, but some recent evidence suggests it should be transferred to the Scrophulariaceae.
en.wikipedia.org /wiki/Orobanchaceae   (380 words)

  
 ..::treeBASE::..   (Site not responding. Last check: 2007-10-08)
We present a phylogenetic hypothesis for parasitic Scrophulari-aceae and Orobanchaceae based on sequences of the plastid gene rps2, encoding the S2 subunit of the plastid ribosome.
Parasitic Scrophulariaceae and Orobanchaceae form a mono-phyletic group in which parasitism can be inferred to have evolved once.
Parasitic Scrophu-lariaceae (including the traditional Orobanchaceae) provide a rich platform for the investigation of molecular evolutionary process, gene function, and the evolution of parasitism.
www.phylo.org /treebase/view/view_study.php?studyID=S425   (280 words)

  
 scrophulariaceae   (Site not responding. Last check: 2007-10-08)
The genera with parasitic tendencies were transferred to the Orobanchaceae.
Even the common name of the family has been involved with this systematic shake-up; "figwort" is the common name for Scrophularia and stays with the now smaller family.
The Orobanchaceae has retained its common name of the "broomrape" family, the common name for Orobanche itself.
www.ups.edu /faculty/kirkpatrick/fieldbotany/family_pages/Scrophulariaceae/scrophulariaceae.htm   (322 words)

  
 OROBANCHE - THE BROOMRAPES by Larry W. Mitich
OROBANCHACEAE, the broomrape family, comprises approximately 150 species in 17 genera.
Four genera represented by four species occur in the southeastern U.S. A majority of the genera and about 90% of the species in OROBANCHACEAE are Old World natives.
The family is primarily one of the northern warm and temperate zones.
www-aes.tamu.edu /mary/brmrape/Br-iwwb.htm   (2095 words)

  
 [No title]   (Site not responding. Last check: 2007-10-08)
Orobanchaceae: Utah taxa from the Utah Atlas (Utah State University - Geography)
Orobanchaceae: Florida taxa from the Atlas of Florida Vascular Plants
Orobanchaceae: Information/Images from the University of Hawaii - Manoa)
www.csdl.tamu.edu /FLORA/cgi/gateway_family?fam=Orobanchaceae   (177 words)

  
 APSnet Education Center - Introductions to the Major Pathogen Groups - Introduction to Parasitic Flowering Plants   (Site not responding. Last check: 2007-10-08)
In general, holoparasites tend to have leaves reduced to scales (or absent in Hydnoraceae), succulent stems, and a primary haustorium (derived from the seedling radicle).
For example, Orobanchaceae are most specialized in a number of endemic genera in South Africa, followed by the Southeastern United States (open, fire-maintained communities), and the Alps of Central Europe (open grasslands).
In the past, the hemiparasitic members of this family were classified as part of Scrophulariaceae (the figwort family) while the holoparasitic members were included in Orobanchaceae (the broomrape family).
www.apsnet.org /education/IntroPlantPath/PathogenGroups/Parasiticplants   (6765 words)

  
 Orobanchaceae molecular phylogenies   (Site not responding. Last check: 2007-10-08)
In terms of parasitic members, all were placed within Orobanchaceae that included Buchnereae and Rhinantheae (Scrophulariaceae) and the conventional Orobanchaceae.
Although parasitism was gained only once, these data indicate that the loss of photosynthesis has occurred on at least five occassions.
The tree below is a phylogenetic reconstruction of parasitic Scrophulariaceae (part of strict consensus tree) based on a parsimony analysis of the gene rbcL - a photosynthetic gene found in the chloroplast genome.
www.parasiticplants.siu.edu /Relation-Scroph.html   (431 words)

  
 Micromorphological Studies on Seeds of Orobanche Species from the Iberian Peninsula and the Balearic Islands, and Their ...
The seed micromorphology of the genus Orobanche (Orobanchaceae).
Pollen morphology of the Orobanchaceae and rhinanthoid Scrophulariaceae with reference to their taxonomy.
Pollen morphology of the Orobanchaceae and rhinanthoid Scrophulariaceae.
aob.oxfordjournals.org /cgi/content/full/94/1/167   (4585 words)

  
 AdventureWare - Broomrape   (Site not responding. Last check: 2007-10-08)
The broomrape family (Orobanchaceae), sometimes classified as a root parasitic lineage of the figworts (Family Scrophulariaceae), includes the fairly large genus Orobanche, which occurs in most regions of the world.
The former are photosynthetic plants that obtain water and dissolved nutrients via haustorial connections to their host roots.
The holoparasites (many of which were formerly classified in Orobanchaceae) are nonphotosynthetic and obtain not only water and nutrients from their hosts but also organic compounds from the phloem.
www.adventureware.com /broomrap.htm   (334 words)

  
 Chromosome numbers and karyotype evolution in holoparasitic Orobanche (Orobanchaceae) and related genera -- Schneeweiss ...
Chromosome numbers and karyotype evolution in holoparasitic Orobanche (Orobanchaceae) and related genera -- Schneeweiss et al.
Heckard L. Chuang 1975 Chromosome numbers and polyploidy in Orobanche (Orobanchaceae).
Pazy B. 1998 Diploidization failure and apomixis in Orobanchaceae.
www.amjbot.org /cgi/content/full/91/3/439   (3332 words)

  
 Molecular Evolution Homepage
One potential result of reduced selection for photosynthesis is that the genes involved in photosynthetic pigment biosynthetic pathways, light harvesting complexes, photoelectron transport chains, the manufacture of energy molecules, and carbon dioxide fixation may become nonfunctional.
In general, the size of the plastid genome is greatly reduced in holoparasitic plants compared to their closest autotrophic relatives and many of the bioenergetic genes are deleted, sufficiently altered to be classified as pseudogenes or are presumably nonfunctional.
Unlike holoparasitic plants (e.g., Orobanchaceae), there is no direct contact of the parasite with its host plant.
www.biosci.ohio-state.edu /~awolfe/research/Molecular_evolution.html   (760 words)

  
 Evolution of plastid gene rps2 in a lineage of hemiparasitic and holoparasitic plants: Many losses of photosynthesis ...
Orobanchaceae, but we trace the loss of photosynthesis to a minimum
Orobanchaceae as a distinct family unless it is expanded to include
The diversity of parasitic abilities in the Scrophulariaceae and Orobanchaceae and the identification of independent holoparasitic
www.pnas.org /cgi/content/full/94/14/7367   (4258 words)

  
 Wolfe, Andrea D.*, Christopher P. Randle, and Nidia Arguedas.   (Site not responding. Last check: 2007-10-08)
- Assessing species boundaries in Hyobanche L. (Orobanchaceae).
Hyobanche L. (Orobanchaceae) is a holoparasitic genus of ca.
Key words: Hyobanche, ISSR, Orobanchaceae, parasitic plant, phylogeny, South Africa
www.botany2002.org /section12/abstracts/129.shtml   (233 words)

  
 AllRefer.com - broom rape, Plant (Plants) - Encyclopedia   (Site not responding. Last check: 2007-10-08)
You are here : AllRefer.com > Reference > Encyclopedia > Plants > broom rape
broom rape, common name for plants of the Orobanchaceae, the broom rape family.
They are parasitic on the roots of other plants; they have small leaves and little or no green color.
reference.allrefer.com /encyclopedia/B/broomrap.html   (173 words)

  
 ALGAE - Online Information article about ALGAE
Such aberrant forms are to be regarded in the same See also:
light as Cuscuta and Orobanchaceae, for example, among Phanerogams.
As these non-green plants do not cease to be classed with other Phanerogams, so must the forms in question be retained among algae.
encyclopedia.jrank.org /AJA_ALL/ALGAE.html   (8592 words)

  
 American squawroot, Conopholis americana (Scrophulariales: Orobanchaceae) @ IPM Images
American squawroot, Conopholis americana (Scrophulariales: Orobanchaceae) @ IPM Images
Magnoliopsida > Scrophulariales > Orobanchaceae > Conopholis americana (L.) Wallr.
IPM Images is a joint project of The Bugwood Network and
www.ipmimages.org /browse/subimages.cfm?SUB=846   (66 words)

  
 Definition of orobanchaceae - Merriam-Webster Online Dictionary
orobanchaceae is one of more than 1,000,000 entries available at Merriam-WebsterUnabridged.com.
For More Information on "orobanchaceae" go to Britannica.com
Get the Top 10 Search Results for "orobanchaceae"
www.m-w.com /cgi-bin/dictionary?book=Dictionary&va=Orobanchaceae   (82 words)

  
 Disintegration of the Scrophulariaceae -- Olmstead et al. 88 (2): 348 -- American Journal of Botany
Calceolariaceae are close to the base of the Lamiales.
in the revised family Orobanchaceae based on the strength of
Boeshore, I. 1920 The morphological continuity of Scrophulariaceae and Orobanchaceae.
www.amjbot.org /cgi/content/full/88/2/348   (6321 words)

  
 Open Directory - Science: Biology: Flora and Fauna: Plantae: Magnoliophyta: Magnoliopsida: Orobanchaceae   (Site not responding. Last check: 2007-10-08)
Top: Science: Biology: Flora and Fauna: Plantae: Magnoliophyta: Magnoliopsida: Orobanchaceae
Description of Orobanchaceae - Habit and leaf form; Anatomy; Morphology; Physiology; Biochemistry; Geography.
Parasitic Plants - Orobanchaceae - Family description, distribution map, list of genera, and extensive information on the parasitic plants in this family, with images.
dmoz.org /Science/Biology/Flora_and_Fauna/Plantae/Magnoliophyta/Magnoliopsida/Orobanchaceae   (88 words)

  
 Illustrated flora of British Columbia Volume 4: Dicotyledons (Orobanchaceae through Rubiaceae).   (Site not responding. Last check: 2007-10-08)
Illustrated flora of British Columbia Volume 4: Dicotyledons (Orobanchaceae through Rubiaceae).
To obtain copies of journal articles, conference proceedings and books please check with your local library.
Check the author links above, or contact Research Branch.
www.for.gov.bc.ca /hre/pubs/pubs/1025.htm   (58 words)

  
 GoForIt.com's Directory - Science: Biology: Flora and Fauna: Plantae: Magnoliophyta: Magnoliopsida: Orobanchaceae
GoForIt.com's Directory - Science: Biology: Flora and Fauna: Plantae: Magnoliophyta: Magnoliopsida: Orobanchaceae
Home > Directory > Science > Biology > Flora and Fauna > Plantae > Magnoliophyta > Magnoliopsida > Orobanchaceae (5)
Family description, distribution map, list of genera, and extensive information on the parasitic plants in this family, with images.
search.goforit.com /default?p=80975   (80 words)

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