Pediastrum duplex

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Pediastrum duplex
Pediastrum duplex wagner.jpg
Pediastrum duplex
Scientific classification
Domain: Eukaryota
Kingdom: Plantae
Division: Chlorophyta
Class: Chlorophyceae
Order: Chlorococcales
Family: Hydrodictyaceae
Genus: Pediastrum
Species: P. duplex
Binomial name
Pediastrum duplex
Meyen 1829
Synonyms

Pediastrum napoleonis Ralfs
Pediastrum pertusum Kützing, 1845
Pediastrum selenaea Kützing, 1845

Pediastrum duplex is a type species of fresh water green algae in the genus pediastrum.[1]

They form nonmotile coenobia (colonies) with a fixed number of cells. These coenobia are flat and have a circular shape. The cell bodies are polygonal, are granulated and have horn-like projections. They reproduce these autocolonies asexually. The colonies usually contain 8 to 32 cells, with examples of 4, 64 or 128 occurring rarely.[2]

Infraspecies[edit]

Pediastrum duplex brachylobum
Pediastrum duplex clathratum
Pediastrum duplex cohaerens
Pediastrum duplex duplex
Pediastrum duplex f. denticulatum Isabella & R.J. Patel
Pediastrum duplex gracillimum
Pediastrum duplex regulosum
Pediastrum duplex reticulatum
Pediastrum duplex rotundatum
Pediastrum duplex var. asperum
Pediastrum duplex var. clathratum (A. Braun) Lagerheim, 1882
Pediastrum duplex var. convexum W. Krieger
Pediastrum duplex var. cornutum
Pediastrum duplex var. gracillimum W. West & G.S. West
Pediastrum duplex var. irregulare G.R. Hegde & K. Somanna
Pediastrum duplex var. longicorne W. Krieger
Pediastrum duplex var. reticulatum Lagerheim, 1882
Pediastrum duplex var. rugulosum Raciborski
Pediastrum duplex var. subgranulatum Raciborski[3] [4]

References[edit]

  1. ^ "Pediastrum duplex Meyen". Algaebase. Retrieved 2010-07-30. 
  2. ^ "Protist Images: Pediastrum duplex". Protist.i.hosei.ac.jp. Retrieved 2010-07-30. 
  3. ^ "2006 Annual Checklist : Pediastrum duplex Meyen". Catalogue of Life. Retrieved 2010-07-30. 
  4. ^ "Pediastrum duplex - Nomen.at - animals and plants". Nomen.at. Retrieved 2010-07-30. 

Further reading[edit]

  • John, D.M. & Tsarenko, P.M. (2002). Order Chlorococcales. In: The Freshwater Algal Flora of the British Isles. An identification guide to freshwater and terrestrial algae. (John, D.M., Whitton, B.A. & Brook, A.J. Eds), pp. 327–409. Cambridge: Cambridge University Press.
  • Cao, X., Strojsová, A., Znachor, P. & Zapomelová, E. (2005). Detection of extracellular phosphatases in natural spring phytoplankton of a shallow eutrophic lake (Donghu, China). European Journal of Phycology 40: 251-258.
  • Day, S.A., Wickham, R.P., Entwisle, T.J. & Tyler, P.A. (1995). Bibliographic check-list of non-marine algae in Australia. Flora of Australia Supplementary Series 4: vii + 276.
  • Hu, H. & Wei, Y. (2006). The freshwater algae of China. Systematics, taxonomy and ecology. pp. [4 pls of 16 figs], [i-iv], i-xv, 1-1023. China: www.sciencep.com.
  • McManus, H.A. & Lewis, L.A. (2005). Molecular phylogenetics, morphological variation and colony-form evolution in the family Hydrodictyaceae (Sphaeropleales, Chlorophyta). Phycologia 44: 582-595.
  • Suda, S., Nozaki, H. & Watanabe, M. (2005). Morphology and sexual reproduction of Carteria palmata sp. nov. belonging to the Carteria group I sensu Lembi (Chlorophyceaem Volvocales). Phycologia 44: 596-607.
  • Elgavish, A., Halmann, M. & Berman, T. (1982). A comparative study of phosphorus utilization and storage in batch culture of Peridinium cinctum, Pediastrum duplex and Cosmarium sp., from Lake Kinneret (Israel). Phycologia 21: 47-54.
  • Lehman, J.T. (1976). Photosynthetic capacity and luxury uptake of carbon during phosphate limitation in Pediastrum duplex (Chlorophyceae). Journal of Phycology 12: 190-193, 3 figs, 1 table.
  • Sigee, D.C., Dean, A., Levado, E. & Tobin, M.J. (2002). Fourier-transform infrared spectroscopy of Pediastrum duplex: characterization of micro-population isolated from a eutrophic lake. European Journal of Phycology 37: 19-26.
  • Smoliner, C. (1983). Das zähe leben der grünalge Pediastrum duplex. Mikrokosmos 8: 241-245.
  • Wilcox, L.W. & Floyd, G.L. (1988). Ultrastructure of the gamete of Pediastrum duplex (Chlorophyceae). Journal of Phycology 24: 140-146.

External links[edit]