Prasinococcus

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Prasinococcus
Scientific classification
Domain: Eukaryota
Kingdom: Viridiplantae
Phylum: Chlorophyta
Class: Prasinophyceae
Order: Pseudoscourfieldiales
Family: Pycnococcaceae
Genus: Prasinococcus
Species
  • P. sp. CCMP1194
  • P. sp. CCMP1202
  • P. sp. CCMP1614
  • P. capsulatus
  • P. sp. MBIC11010
  • P. sp. MBIC11013

In taxonomy, Prasinococcus is a genus of algae, specifically of the Pycnococcaceae. [1]

Discovery


Prasinococcus capsulatus, the only currently known member of this genus, was discovered in the West Pacific Ocean during a cruise by the research vessel Sohgen-maru in November-December 1990. [2]

Morphology


Prasinococcus have a firm cell wall lacking scales and also lack flagella. The mitochondrial lobe and chloroplast outer membrane both protrude into the pyrenoid matrix which is considered characteristic of the genus. The cell wall has a protruding circular collar which is surrounded by holes which penetrate the cell wall. Its method of asexual reproduction is also considered characteristic - after cell division one daughter cell remains within the original cell wall while the other is extruded. [2]

Pigment composition


The pigments of Prasinococcus include chlorophylls a and b, prasinoxanthin, Mg 2, 4-diviriylphaeoporphyrin a5 monomethyl ester (Mg 2, 4-D) and 5, 6-epoxy-3, 3′-dihydroxy-5, 6, 7′, 8′-tetrahydro-β-ε-caroten-11′ and 19-olide (uriolide). [2]

Notes

  1. ↑ See the NCBI webpage on Prasinococcus. Data extracted from the "NCBI taxonomy resources". National Center for Biotechnology Information. Retrieved 2007-03-19. 
  2. ↑ 2.0 2.1 2.2 Miyashita et al. 1993


External links

Scientific references

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