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Topic: Pyrrhophyta


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  Paleorama.com
Microfossils are a common feature of the geological record, from the Precambrian to the Quaternary, and are found in most marine and terrestrial sediments.
While every Kingdom of life is represented in the microfossil record, the most abundant forms are protist skeletons or cysts from the phyla Chrysophyta, Pyrrhophyta, Sarcodina, acritarchs and chitinozoans together with pollen and spores from vascular plants.
Micropaleontology is traditionally divided into three areas of study on the basis of microfossil composition, which can be calcereous, siliceous, or organic.
www.paleorama.com /fields/micropaleontology.html   (417 words)

  
 Carty, Susan* and John D. Hall II.   (Site not responding. Last check: 2007-10-10)
The freshwater flora of Ecuador is poorly known.
This report provides preliminary information about the freshwater Pyrrhophyta and two families in the Chlorophyta.
Pyrrhophyta include Ceratium, Gymnodinium, Peridinium, Sphaerodinium, and Woloszynskia.
www.botany2002.org /section8/abstracts/10.shtml   (179 words)

  
 [No title]   (Site not responding. Last check: 2007-10-10)
The Pyrrhophyta, Chrysophyta, Cryptophyta, Charophyta, Bacillariophyta, Xanthophyta and Euglenophyta are mainly unicellular algae.
Dinoflagellata (Pyrrhophyta) are also called fire algae for their ability to bioluminesce or glow.
They are also commonly called dinoflagellates due to the presence of flagella, which provide a whirling motion (dinein= to whirl).
mark.gisc.kennesaw.edu /4700/notes/ALGAE1a.htm   (3259 words)

  
 article   (Site not responding. Last check: 2007-10-10)
Toxinogenic algae are found in the divisions Chrysophyta, Pyrrhophyta, and Cyanophyta.
They also produce other organic compounds that may react with chemical disinfectants to produce toxins that may be ingested with drinking water.
The majority of the known seafood toxin syndromes are associated with bivalves that can accumulate a variety of toxins produced by dinoflagellates (Pyrrhophyta) and diatoms (Chrysophyta).
www.egynattox.com /article.htm   (1702 words)

  
 Onondaga Lake Improvement: Fish Habitat in Onondaga Lake   (Site not responding. Last check: 2007-10-10)
The phytoplankton community of Onondaga Lake is comprised of Bacillariophyta, Chlorophyta, Chrysophyta, Cryptophyta, Cyanophyta, Euglenophyta, Pyrrhophyta, "miscellaneous microflagellates," and Xanthophyta (the yellow-green algae; which were documented for the first time since 1996).
The two dominant cyanobacteria found in the 2002 algal blooms were Oscillatoria amphibia (density) and Aphanizomenon flos-aquae (biomass).
(Euglenophyta); Peridinium umbonatum (density) and Ceratium hirundinella (biomass) (Pyrrhophyta); and Pleurogaster lunaris (density) and Tribonema sp.
www.lake.onondaga.ny.us /ol33082.htm   (904 words)

  
 Ethnobotanical Leaflets
Algae are a "group of plants" that dominate the aquatic environment (Raymount, 1984).
Organisms that make up the algae include representatives from three kingdoms and seven divisions: cyanochloranta and prochorophyta (from Kingdom Monera), pyrrhophyta, chrysophyta, phaeophyta, and rhodophyta (from Kingdom Protista), and chlorophyta (from Kingdom Plantae).
All seven divisions are called algae because of a lack of roots, stems, and leaves; and most algal cells are fertile.
www.siu.edu /~ebl/leaflets/algae.htm   (1440 words)

  
 Life History and Ecology of the Dinoflagellata
Some species will parasitize other organisms, such as zooplankton and other protists, filamentous algae, or fish.
The Dinoflagellata are sometimes called Pyrrhophyta, meaning "fire plants".
This is because some species are capable of bioluminescence, in which chemicals made by the organism produce light in a chemical reaction.
www.ucmp.berkeley.edu /protista/dinoflaglh.html   (904 words)

  
 Index to the genera, subgenera, and sections of the Pyrrhophyta, [Part] 3 -- Loeblich and Loeblich 43 (1): 193 -- ...   (Site not responding. Last check: 2007-10-10)
Index to the genera, subgenera, and sections of the Pyrrhophyta, [Part] 3 -- Loeblich and Loeblich 43 (1): 193 -- Journal of Paleontology
Index to the genera, subgenera, and sections of the Pyrrhophyta, [Part] 3
Living and fossil genera of Pyrrhophyta (dinoflagellates) are cataloged, with annotations regarding their nomenclatural validity; ebridians (Ebriida) are treated as a class within the Pyrrhophyta.
jpaleontol.geoscienceworld.org /cgi/content/abstract/43/1/193   (90 words)

  
 Chapter 27 Remarks
Euglenophyta and Pyrrhophyta are fairly primitive algae, but have wonderfully interesting features.
The dinoflagellates (Pyrrhophyta) are responsible for red tides and make many shellfish toxic to humans and kill fish when dinoflagellates are abundant.
A common Bermuda observation in the Tropical Biology course is these critters "flashing" in the bowl during nocturnal urination (the toilets use sea water to conserve limited fresh water).
www.biologie.uni-hamburg.de /b-online/library/plant_biology/Ch27.html   (1304 words)

  
 SeaWeb - Ocean Citations
Dinoflagellates can be classified both botanically and zoologically; however, they are typically put in the botanical division Pyrrhophyta.
Within the Pyrrhophyta are both unarmored and armored forms of the dominant, motile flagellated stage.
Unarmored dinoflagellates do not have thecal or wall plates arranged in specific series, whereas armored species have plates that vary in thickness but are specific in number and arrangement.
www.seaweb.org /resources/citations/algabloom/2001/01algabloom.11.php   (284 words)

  
 Index to the genera, subgenera, and sections of the Pyrrhophyta, IV -- Loeblich and Loeblich 44 (3): 536 -- Journal of ...   (Site not responding. Last check: 2007-10-10)
Index to the genera, subgenera, and sections of the Pyrrhophyta, IV -- Loeblich and Loeblich 44 (3): 536 -- Journal of Paleontology
Index to the genera, subgenera, and sections of the Pyrrhophyta, IV
Catalog for Recent and fossil genera, new taxa, bibliography (for reference to Part III, see this Bibliography Vol.
jpaleontol.geoscienceworld.org /cgi/content/abstract/44/3/536   (71 words)

  
 Classification and Identification of Pfiesteria and Pfiesteria-Like Species
This article is part of the National Conference on "Pfiesteria: From Biology to Public Health" and covers what is currently known about the higher-level placement of the Pfiesteria-like organisms and the taxonomic relationship between P.
Pfiesteria and several Pfiesteria-like genera are dinoflagellates classified in the botanical division Pyrrhophyta.
In that work (11) and elsewhere, plate tabulation is considered the most important morphological characteristic to differentiate within the division Pyrrhophyta at the family or subfamily rank.
www.ehponline.org /members/2001/suppl-5/661-665steidinger/steidinger-full.html   (3501 words)

  
 Amazon.com: "Pyrrhophyta Ceratium": Key Phrase page   (Site not responding. Last check: 2007-10-10)
See all pages with references to Pyrrhophyta Ceratium.
43) 73 (52-105) Cryptophyta Cryptomonas ovata (5) 2090(1920-2250), - - 33(25-40) 2710(1950-3750) Pyrrhophyta Ceratium hirundinella (...
s 40 40 Euglena 20 Pyrrhophyta Ceratium 119 Gvmnodiniurn 79 Note: Values are given in individuals per milliliter.
www.amazon.com /phrase/Pyrrhophyta-Ceratium   (285 words)

  
 Dinoflagellates
It is now widely accepted that the ICBN should be used for their classification.
Dinoflagellates and their cysts belong to the Division Pyrrhophyta (literally "fire plants"), Class Dinophycaea, the related Class Ebriophyceae (also in the Division Pyrrhophyta) includes the ebridians which have internal siliceous skeletons, are extant and have a fossil record beginning in the Palaeocene.
An important point to remember about dinoflagellates is that the vast majority of the fossil record consists of cysts (dinocysts), and only 10% of living dinoflagellates are known to produce cysts.
www.ucl.ac.uk /GeolSci/micropal/dinoflagellate.html   (2110 words)

  
 Find in a Library: Index to the genera, subgenera, and sections of the Pyrrhophyta,
Index to the genera, subgenera, and sections of the Pyrrhophyta,
To find this item in a library, enter a postal code, state, province, or country in the field above.
WorldCat is provided by OCLC Online Computer Library Center, Inc. on behalf of its member libraries.
www.worldcatlibraries.org /wcpa/ow/ffb845306c3c146e.html   (89 words)

  
 Untitled
Alga (-ae) - a term for a very diverse taxonomic group all containing chlorophyll a but lacking vascular tissues found in higher plants; may be unicellular or multicellular organisms, found in marine, freshwater, living endophytically in other plants and algae, soil environments, some can even by airborne.
This course focuses on freshwater algae found in the following phyla: Cyanophyta (blue-greens), Chlorophyta (greens), Euglenophyta (flagellated greens), Pyrrhophyta (dinoflagellates), Chrysophyta (browns, yellow-greens, diatoms) and the Rhodophyta (reds).
Theca - cellulose plates that are "armorlike" in appearance found in Pyrrhophyta (dinoflagellates)
www.msu.edu /course/bot/423/algalglossary.htm   (849 words)

  
 CiteULike: THE SMALLEST DINOFLAGELLATE GENOME IS YET TO BE FOUND: A COMMENT ON LAJEUNESSE ET AL. SYMBIODINIUM ...   (Site not responding. Last check: 2007-10-10)
CiteULike: THE SMALLEST DINOFLAGELLATE GENOME IS YET TO BE FOUND: A COMMENT ON LAJEUNESSE ET AL.
THE SMALLEST DINOFLAGELLATE GENOME IS YET TO BE FOUND: A COMMENT ON LAJEUNESSE ET AL.
Note: You or your institution must have access rights to this article.
www.citeulike.org /article/671268   (156 words)

  
 Botanik online: Algen
Unterschiedlich waren dabei einerseits die plastidenfreien eukaryotischen Wirtszellen, andererseits aber auch die Symbiosepartner (=unterschiedliche Gruppen seinerzeit lebender photosynthetisierender Prokaryoten).
Noch problematischer war die Entstehung der Pyrrhophyta (Dinoflagellaten).
Deren Plastiden scheinen bei einigen der Arten den Chrysophyten (einer Abteilung eukaryotischer Algen) homolog zu sein.
www.biologie.uni-hamburg.de /b-online/d44/44.htm   (1126 words)

  
 [No title]
1 Nageli 3,285.15 19.71 3,285.15 18.86 T1 6/11/2002 Pyrrhophyta Dinophyceae Gymnodinales Gymnodiniaceae Gymnodinium sp.
2 Stein 0.73 0.01 0.73 0.01 T1 8/30/2002 Pyrrhophyta Dinophyceae Gymnodinales Gymnodiniaceae Gymnodinium sp.
2 Stein 5.45 0.09 5.45 0.09 T1 5/13/2003 Pyrrhophyta Dinophyceae Gymnodinales Gymnodiniaceae Gymnodinium sp.
pubs.usgs.gov /sir/2004/5281/data/Site_T1.phytoplankton.data.txt.prn   (2226 words)

  
 Research Interests of Dr. J. William Louda, Dept of Chemistry & Biochemistry and The Environmental Sciences Program, ...
The structures of but a few of these are given below.
Gyroxanthin diester (Florida Red Tide, Karenia brevis: Pyrrhophyta)
Therefore, through pigment analysis and the relation of the abundance of these ‘biomarkers’ to chlorophyll-a, one is able to estimate the (chemo-) taxonomic structure of microalgal communities.
www.fau.edu /~blouda/research.html   (2090 words)

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