(redirected from Haptophyta)
Related to Haptophyta: Cryptophyta


Any of various photosynthetic, unicellular marine algae of the division Haptophyta or Prymnesiophyta, possessing two flagella and often bearing external calcified scales that fossilize as coccoliths. Haptophytes are abundant in the world's oceans and are thought to play an important role in global carbon and sulfur cycles.

[From New Latin Haptophyta, division name : Greek haptein, to grasp, touch (from the threadlike structure characteristic of the haptophytes, used to capture food and as a sensory organ ) + Greek phyton, plant; see -phyte.]
Mentioned in ?
References in periodicals archive ?
The long-term culture of the cocco lithophore Pleurochrysis carterae (Haptophyta) in outdoor raceway pond.
Borowitzka, "The long-term culture of the coccolithophore Pleurochrysis carterae (Haptophyta) in outdoor raceway ponds," Journal of Applied Phycology, vol.
Toxic and harmful phytoplankton composition and seasonal cell density: A total of 20 potentially toxic and harmful phytoplankton taxa were identified during the study period (Table 1) which consists of one cyanobacterium, one diatom, one haptophyte and 15 dinoflagellates belonging to the following divisions: (17) Dinophyta, (1) Bacillariophyta, (1) Cyanophyta and (1) Haptophyta. Dinophysis spp., Prorocentrum spp, Protoperidinium spp., Pseudo-nitzschia spp., and Trichodesmium erythreaum were the most abundant taxa observed over the 2-year period leaving the other phytoplankton taxa recorded rare and in low cell numbers.
These groups included Haptophyta (mean = 8.6 cells/mL), Chrysophyta (mean = 2.8 cells/mL), Rhodophyta (mean = 0.7 cells/mL), Euglenophyta (mean = 0.2 cells/mL), and Chlorophyta (mean = 0.1 cells/mL).
2 and 5 Other Metazoa Phyla Other Eukaryote Phyla Chaetognatha Ciliophora Ctenophora Other Alvelata Entoprocta Amoebozoa Hemichordata Cryptophyta Loricifera Loukozoa Gnathifera Glaucophyta Onochophora Choanozoa Porifera Picozoa Rotifera Foraminifera Xenoturbeiidea Rhodophyta Acanthocephala Myzozoa Chordata Apusozoa Cycliophora Heliozoa Gnathostomulida Percolozoa Kinohycha Euglenozoa Mesozoa Haptophyta Nematomorpha Metamunada Placozoa Cercozoa Priapulida Radiozoa Sipuncula Uncultured unicellular Uncultured Metazoa Eukaryote Acknowledgments
38); una (o dos) Primnesiophyta (o Haptophyta): Phaeocystis spp.
Phylum 1 Haptomonada (Prymnesiophyta, Haptophyta, Prymnesiophytes, Coccolithophorids and Other YellowBrown Planktic Unicells with Haptoneme Filaments)
in the Isochrysidales, and the transfer of Dicrateria to the Prymnesiales (Haptophyta).