From Simple English Wikipedia, the free encyclopedia
Jump to navigation Jump to search

Coccolithus pelagicus.jpg
Coccolithophore (Coccolithus pelagicus)
Scientific classification

Hibberd 1976

Class Pavlovophyceae
Class Prymnesiophyceae

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]