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Stramenopile

(Redirected from Heterokont)

The heterokonts or stramenopiles are a major line of eukaryotes with more than 100,000 known species,[1] most of them diatoms.[2]

Heterokonts
Pacific rockweed, Olympic National Park, USA.jpg
Pacific rockweed, Fucus distichus, in Olympic National Park
Scientific classification
Domain:
Eukarya
Kingdom:
Chromalveolata
Phylum:
Heterokontophyta
Typical classes

Heterokonts are mostly algae. In one stage of their life cycle they have two unequal flagella. They include both single-celled types and brown algae (seaweeds such as kelp and Sargassum). They are members of the Kingdom Chromalveolata.

Phylogeny

Stramenopiles


Platysulcidae Shiratori, Nkayama & Ishida 2015




Sagenista

Eogyrea



Labyrinthulea Aplanosem.png






Bikosea Cavalier-Smith 2013



Placidozoa

Placididea Moriya, Nakayama & Inouye 2002




Nanomonadea Cavalier-Smith 2013




Opalomonadea Cavalier-Smith 2013


Opalinata

Blastocystea Zierdt et al. 1967 Four common forms of Blastocystis hominis Valzn.jpg



Opalinea Wenyon 1926 emend. Cavalier-Smith 1993 Parasite140015-fig2 Protoopalina pingi (Opalinidae) Microscopy.tif






Gyrista

Bigyromonadea Cavalier-Smith 1998




Oomycota Arx 1967 Peronospora sparsa.JPG




Hyphochytriomycota Whittaker 1969




Pirsoniales Cavalier-Smith 1998


Ochrophyta
Khakista

Bolidophyceae Guillou & Chretiennot-Dinet 1999 Tetraparma pelagica.jpg



Bacillariophyceae Haeckel 1878 Diatoms through the microscope.jpg



Phaeista
Hypogyristea

Dictyochophyceae Silva 1980 s.l. Dictyocha speculum.jpg


Chrysista

Eustigmista

Pinguiophyceae Kawachi et al. 2002





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1=Raphidophyceae s.l. Actinophrys sol.jpg label2=Fucistia 1=Phaeophyceae (brown seaweeds) Hansgirg 1886 Gemeiner Blasentang.jpg 1=Chrysomerophyceae Cavalier-Smith 1995 1=Phaeothamniophyceae Andersen & Bailey 1998 s.l. 2=Xanthophyceae (yellow-green algae) Allorge 1930 emend. Fritsch 1935 Vaucheria sp sexial reproductive organ01.jpg 
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Stramenopile Media

  • Giant kelp, Macrocystis pyrifera, an example of a multicellular stramenopile, is a large seaweed, up to 45 metres (150 feet) long, in the Phaeophyceae, within the Gyrista.

  • Telonema rivulare (electron micrography)

  • From English Wikipedia. Original description: Live Ammonia tepida benthic foraminiferan collected from San Francisco Bay. Phase-contrast photomicrograph by Scott Fay, UC Berkeley, 2005.

  • Cafeteria roenbergensis atcc50561 Protsville (cropped)

  • Hydrofront of Dnieper-Bug Liman

  • Aplanochytrium, Ectoplasmic network forming basket structure surrounding vegetative cells. This characteristic is unique to members of the genus Aplanochytrium.

  • Cafeteria roenbergensis atcc50561 Protsville (cropped)

  • Zoospore Release

References

  1. ↑ "stramenopiles". Retrieved 2009-03-08.
  2. ↑ Hoek, C. van den; D.G. Mann and H.M. Jahns (1995). Algae: An Introduction to Phycology. Cambridge: Cambridge University Press. pp. 104, 124, 134, 166. ISBN 0-521-31687-1.
Wikispecies has information on: Heterokonta.


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