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Topic: Pyrrophyta


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  Pyrrophyta: World of Microbiology and Immunology
Pyrrophyta have been identified in fossil deposits around the globe, from arctic to tropical seas, as well as in hypersaline waters, freshwater, and river deltas.
Pyrrophyta are mostly unicellular microorganic Protists divided by botanists in two phyla, dinoflagellates and criptomonads.
The taxonomic classification of Pyrrophyta is disputed by some zoologists who consider them members of the Protozoa kingdom.
science.enotes.com /microbiology-encyclopedia/pyrrophyta   (124 words)

  
 Dinoflagellate Summary
Some Pyrrophyta, such as Gymnodium and Gonyaulax are dinoflagellates responsible for red tides and secrete neurotoxins that cause massive fish death.
Photosynthetic Pyrrophyta are autotrophs, whereas the non-photosynthetic ones may be heterotrophs, existing as parasites in fish and aquatic invertebrates as well.
Cryptomonads themselves are the evolutionary result of endosymbiosis, and are chimeric species that evolved from ancestral red algae and a non-photosynthetic host that retained the red alga nucleus under the form of a bead-like nucleomorph chromosome.
www.bookrags.com /Dinoflagellate   (2155 words)

  
 Algae   (Site not responding. Last check: 2007-11-07)
Pyrrophyta are important phytoplanktonic organisms in freshwater and marine habitats.
The food storage material of the pyrrophyta is starch.
The cell walls of those that possess them are in the form of cellulosic plates and hence the name armored dinoflagellates given to some members of the phylum.
carroll1.cc.edu /~jclausz/botany/Algae.html   (1146 words)

  
 pyrrophyta   (Site not responding. Last check: 2007-11-07)
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pyrrophyta some minutes at a bed of the tenders for compensation.
But not money pyrrophyta The given situation it excited First, it pyrrophyta pyrrophyta rest, secondly, The gratitude.
dghk5537.topitalysite.com /pyrrophyta.html   (291 words)

  
 algae
The major groups of algae are Divisions (equivalent to Phyla in animals) Cyanophyta, Chlorophyta, Cryptophyta, Chrysophyta, Pyrrophyta, Bacillariophyta, Euglenophyta and Rhodophyta.
All members of Division Cyanophyta, the "blue-green algae", are prokaryotic cells with no organized nucleus and no mitochondria or chloroplasts.
Members of the Division Pyrrophyta, also known as dinoflagellates, contain chlorophylls a and c, and may be armored with plates known as theca.
www-personal.umich.edu /~gwk/teaching/limno/lab/onlinemanual/algae.html   (1159 words)

  
 Water Resource Characterization DSS - Algae
Six taxonomic divisions delineate the different types of algae: Divisions Chrysophyta, Pyrrophyta, Phaeophyta, Rhodophyta, Chlorophyta and Euglenophyta.
Division Pyrrophyta (dinoflagellates): Most members of this division are unicellular biflagellates.
Most occur as plankton and are found in both fresh and salt water.
www.bae.ncsu.edu /programs/extension/wqg/info/algae.html   (1690 words)

  
 [No title]   (Site not responding. Last check: 2007-11-07)
It has been shown that in the coastal waters of the Black Sea at the same temperature of water and illumination the light respiration of phytoplankton was closely similar to that registered in its open waters.
The maximum values of light respiration (28–47% of the total production of phytoplankton) were registered in the samples with a predominance of Pyrrophyta and small forms of flagellate, whereas its minimum values (10–20%) – in the samples with a predominance of Bacillariophyta.
Regression relationship was established between the rate of light respiration and the biomass of Pyrrophyta and small forms of flagellate.
www.begellhouse.com /ixml/Volume39_Issue6-7fca9ba16420ad82.xml   (1371 words)

  
 protista   (Site not responding. Last check: 2007-11-07)
Diatoms are used for time dating and correlation and, in the case of freshwater forms, for reconstructing ancient environments.
The Pyrrophyta or dinoflagellates are a diverse group of single-celled phytoplankton that is largely marine in distribution, although some freshwater forms are known.
Dinoflagellate cell walls, as in this specimen of Gonyaulax, are made up of a series of plates.
taggart.glg.msu.edu /bot335/protista.htm   (412 words)

  
 pyrrophyta - OneLook Dictionary Search
We found 5 dictionaries with English definitions that include the word pyrrophyta:
Tip: Click on the first link on a line below to go directly to a page where "pyrrophyta" is defined.
Phrases that include pyrrophyta: phylum pyrrophyta, division pyrrophyta
www.onelook.com /?w=pyrrophyta&last=pyrophyte&loc=spell1   (91 words)

  
 What is Algae
Because of their ambiguous form, they have been claimed as animals by some zoologists and as plants by some botanists.
The phylum Pyrrophyta, commonly called dinoflagellates, are one - celled free - swimming biflagellates abundant in tropical waters.
They contain chlorophyll, carotene, and a large proportion of a golden - brown xanthophyll.
www.poolsetc.com /public/adviser/Algae.html   (1259 words)

  
 phylum Pyrrophyta - English-Italian Dictionary - WordReference.com
Forum discussions with the word(s) 'phylum Pyrrophyta' in the title:
Non ci sono titoli che contengano la parola/frase'phylum Pyrrophyta'.
Ask a question yourself./Poni tu stesso una domanda.
www.wordreference.com /enit/phylum+Pyrrophyta   (39 words)

  
 Max Power - Passionate About Performance
A typical dinoflagellate has a body divided into two parts by a grove or girdle, containing a transverse flagellum.
microscope examination of species relating to Cyanophyta, Euglenophyta, Chlorophyta, Xanthophyta, Bacillariophyta, Pyrrophyta, Chrysophyta, Phaeophyta,...
Euglenophyta (Euglenoids) · Minor divisions of algae · Phaeophyta (Brown algae) · Pyrrophyta (Dinoflagellates) · Rhodophyta (Red algae)
www.maxpower.co.uk /search/index.asp?search=Pyrrophyta&pn=3&page=ehruszo%250L8%2E6%253Dmrwwepd%2Duisn%257Ekaqvlldtkyy%252Ig%2Dwyg%2Dgyuv%2Dutvpomrmhd%252Nfxgdvetsa%257F073%2E263%2E449%2E36%253Mtdhra%258DZbauorrjuk%251Fqtzc%257F03%254Mi%2Dsqbs%2Dwcps%2Dknddgbd%257FDvet%2DLhoqc%253C%253623Plgclzu%255O5%2E2%253623%28ktvz%254K%251I%254Phxg%2Eplgclwbcw%2Efoo%253Gcsrget%2Esuwo%29%252Ebpteocvba%258Dbhuhvcxnf%255Luehsyfwhww%259Mcfvdchd%252Nrs%256F1%252Ngkproy%2Dpcjoqmoy%257Npx%251Fsrowm%2Dvdjggce%257Fxq%254Mnbdhprra%258Dghk%252Ecptclxq%259Moj13%256A3179280691784%2D%251Fvgbdjyq%250C7%2E5%252Fjftkyyjn%256FC4L9C5D2761O513H863E341O4553GL91%255Lti%257N31%251Fqm%258D13%255CZ%2DTocs%2DXsgb%2DIodmhru%258DEvnu%2DCqpod%252D%2BIsrblrc%252H2%2E1%2B%28qwtr%254B%255O%252Hghx%2Ejrjadvltd%2Elrm%252Qtzlmhr%2Erenv%29%3A%3A3CFB67014125DD67A15CEF9D7EE8D319   (117 words)

  
 Chapter 5: Kingdom Protista
Protists utilize a number of different trophic strategies, including autotrophy, heterotrophy, parasitism, and symbiotic relationships.
Although there are numerous protistan groups, only a few are of interest to paleontologists, including the phyla Chrysophyta (containing coccolithophorids, silicoflagellates and diatoms), Pyrrophyta (containing the dinoflagellates), and Sarcomastigophora (containing radiolarians, tintinnids and the foraminifers).
Please note the systematics outline for the classification.
www.geo.arizona.edu /geo3xx/geo308_fall2002/backup/cha5.html   (815 words)

  
 Origin of Prokaryotes and Eukaryotes—Protists
Diatoms are an important freshwater and marine food source; when dead, their shells often accumulate in large strata known as diatomaceous earth, which is still used as an abrasive and for filtering purposes.
Dinoflagellates are unicellular photosynthetic algae that are the principal member of the phylum Pyrrophyta.
First, several species are luminescent and give off light when disturbed.
www.factmonster.com /cig/biology/protists.html   (1277 words)

  
 Pyrrophyta - French-English Dictionary WordReference.com
We found no French translation for 'Pyrrophyta' in our English to French Dictionary.
Look for a definition in our English Dictionary.
Or did you want to translate 'Pyrrophyta' from French to English?
www.wordreference.com /enfr/Pyrrophyta   (49 words)

  
 Definition of pyrrophyta - Merriam-Webster Online Dictionary
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Learn more about "pyrrophyta " and related topics at Britannica.com
Get the Top 10 Search Results for "pyrrophyta "
www.m-w.com /dictionary/pyrrophyta   (31 words)

  
 The Guide: Chrysophytes and Pyrrophytes   (Site not responding. Last check: 2007-11-07)
Chrysophytes generally reproduce asexually, although some types reproduce sexually through a process called meiosis.
which we will discuss is the division pyrrophyta.
Pyrrophytes, also known as dinoflagellates, have a rigid
library.thinkquest.org /27819/ch7_5.shtml   (122 words)

  
 phylum pyrrophyta - definition, thesaurus and related words from WordNet-Online
phylum pyrrophyta - definition, thesaurus and related words from WordNet-Online
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Pyrrophyta, phylum Pyrrophyta - a division of lower plants comprising unicellular and biflagellate algae that form starchy compounds
www.wordnet-online.com /phylum_pyrrophyta.shtml   (51 words)

  
 CHAPTER 22, THE PROTISTS   (Site not responding. Last check: 2007-11-07)
a) Chlorophyta b) Phaeophyta c) Rhodophyta d) Bacillariophyta e) Pyrrophyta
Diatomaceous earth comes from the dying of phylum
The algae that may grow to 100 m in length is in the phylum
www.sirinet.net /~jgjohnso/apbio22quiz.html   (1462 words)

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