Haptophyte

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Haptophytes
Coccolithophore (Coccolithus pelagicus)
Scientific classification
Domain: Eukaryota
Kingdom: Chromalveolata
Phylum: Haptophyta
Hibberd 1976
Orders

Class Pavlovophyceae
   Pavlovales
Class Prymnesiophyceae
   Prymnesiales
   Phaeocystales
   Isochrysidales
   Coccolithales

Haptophytes are a phylum of algae, sometimes called the Prymnesiophyta.[1] All or most of them are single-celled photosynthetic phytoplankton.

The cells typically have two slightly unequal flagella and a unique organelle called a haptonema. This is superficially similar to a flagellum, but differs in its arrangement of microtubules, and in its use. The name comes from the Greek hapsis = touch, and nema = thread.

Classification[change | change source]

Molecular and morphological evidence places them in five orders; coccolithophores make up the Isochrysidales and Coccolithales. Other groups include phytoplankton which produce the toxic algal blooms.


References[change | change source]

  1. R.A. Anderson. 2004. Biology and systematics of heterokont and haptophyte algae. American Journal of Botany 91: 1508-1522. [1]