Closterium

From Wikipedia, the free encyclopedia
Closteriumjji
Closterium sp.
Scientific classification
Domain: Eukaryota
Kingdom: Protista
Division: Charophyta
Class: Zygnemophyceae
Order: Desmidiales
Family: Closteriaceae
Genus: Closterium
  • C. acerosum
  • C. calosporum
  •  subspecies C. calosporum var. himalayense
  • C. cornu
  • C. ehrenbergii
  • C. gracile
  • C. incurvum
  • C. littorale
  • C. lunula
  • C. moniliferum
  • C. navicula
  • C. peracerosum
  • C. peracerosum-strigosum-littorale complex
  • C. pleurodermatum
  • C. pusillum
  • C. selenastrum
  • C. spinosporum
  • C. tumidum
  • C. venus
  • C. wallichii

In taxonomy, Closterium is a genus of algae, specifically of the family Closteriaceae.[1]

Morphology

Elongated cylindrical, often lunate unicells composed of two symmetrical semicells. Single, axial chloroplasts with many pyrenoids in each semicell. Very conspicuous vacuoles at the ends of the cell with CaSO4 (Gypsum) crystals "dancing" around within them.

Further species

Closterium regulare Breb has been rediscovered in the United Kingdom. It was first described from Lower Normandy by Brebisson.[2]

Reproduction

Closterium sp. during a miotic phase (upper-left is a different diatom)
Closterium sp.
Closterium sp.

Asexual: binary fission from a partitioned parent cell.

Sexual: Conjugation to form a hypnozygote.

References

  1. ↑ See the NCBI webpage on Closterium. Data extracted from the "NCBI taxonomy resources". National Center for Biotechnology Information. Retrieved 2007-03-19. 
  2. ↑ Carter, C.F. and Williamson, D.B. (2008) A rediscovered UK desmid: Closterium regulare Breb The Phycologist. Autumn 2008 No.75:24

External links

Scientific references

Scientific databases

Wikimedia Commons has media related to Closterium.
This article is issued from Wikipedia. The text is available under the Creative Commons Attribution/Share Alike; additional terms may apply for the media files.