Pelagophyceae

Pelagophyceae is a class of heterokont algae. It is the sister group of Dictyochophyceae.[1]

Pelagophyceae
Scientific classification
Kingdom: Chromista
Phylum: Ochrophyta
Class: Pelagophyceae
R.A.Andersen & G.W.Saunders, 1993
Orders
  • Pelagomonadales
  • Sarcinochrysidales
Synonyms
  • Pelagophycidae Andersen & Saunders 1993 ex Cavalier-Smith & Chao 2006
  • Sarcinochrysidae Cavalier-Smith 1993
  • Sarcinochrysidophyceae Van Den Hoek, Mann & Jahns 1995

All known species are marine. They can be single-celled (coccoid or flagellate), palmelloid or filamentous. Some members (Pelagomonas) belong to picoplankton, and some other (Sarcinochrysis) are macroscopic attached organisms.[1]

The class contains 13 genera, 3 families and 2 orders (2017):[2][3]

  • Order Pelagomonadales Andersen & Saunders 1993
    • Family Pelagomonadaceae Andersen & Saunders 1993
      • genus Ankylochrysis Billard 1995
      • genus Aureococcus Hargraves & Sieburth 1988
      • genus Chrysophaeum Lewis & Bryan 1941 non Taylor 1951
      • genus Pelagococcus Norris 1977
      • genus Pelagomonas Andersen & Saunders 1993
  • Order Sarcinochrysidales Gayral & Billard 1977
    • Family Chrysocystaceae Melkonian, Yoon & Andersen 2018
      • genus Chrysocystis Lobban, Honda & Chihara 1995
      • genus Chrysoreinhardia Billard 2000
      • genus Sungminbooa Yoon & Andersen 2018
    • Family Sarcinochrysidaceae Gayral & Billard 1977
      • genus Andersenia Wetherbee & Waller 2015
      • genus Arachnochrysis Andersen & Han 2018
      • genus Aureoscheda Wynne & Andersen 2014
      • genus Aureoumbra Stockwell et al. 1997
      • genus Chrysonephos Taylor 1952
      • genus Nematochrysopsis Billard 2000
      • genus Pelagospilus Andersen & Graf 2018
      • genus Sarcinochrysis Geitler 1930
      • genus Sargassococcus Andersen & Han 2018

It is expected that molecular studies will add more species to this list.[1]

References

  1. Wetherbee R.; Gornik S. G.; Grant B.; Waller R. F. (2015). "Andersenia, a genus of filamentous, sand-dwelling Pelagophyceae from southeastern Australia". Phycologia. 54 (1): 35–48. doi:10.2216/14-107.1.
  2. "Pelagophyceae". WoRMS. World Register of Marine Species. Retrieved 2017-06-13.
  3. Han, K.; Graf, L.; Reyes, C. P.; Melkonian, B.; Andersen, R. A.; Yoon, H. S.; Melkonian, M. (2018). "A Re-investigation of Sarcinochrysis marina (Sarcinochrysidales, Pelagophyceae) from its Type Locality and the Descriptions of Arachnochrysis, Pelagospilus, Sargassococcus and Sungminbooa genera nov". Protist. 169 (1): 79–10. doi:10.1016/j.protis.2017.12.004.


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