Yellow-green algae

Yellow-green algae are the Xanthophyceae (xanthophytes).

Yellow-green algae
Album général des Cryptogames, Pl. 20.jpg
Examples of xanthophytes (repair the unequal flagella in the cells)
Scientific classification e
Unrecognized taxon (fix): Xanthophyceae
Synonyms
  • Heterokontae Luther, 1899[3]
  • Heterochloridia Pascher, 1912
  • Tribophyceae Hibberd, 1981[4]
  • Heteromonadida Leedale, 1983[5]
  • Xanthophyta Hibberd, 1990[6]

They are a group of heterokont algae. Most live in fresh water, but some live in marine and soil habitats. They vary from single-celled flagellates to simple colonial and filamentous forms.

Xanthophyte chloroplasts contain the photosynthetic pigments chlorophyll a, chlorophyll c, β-carotene, and the carotenoid diadinoxanthin.[7]

Unlike other heterokonts, their chloroplasts do not have fucoxanthin, which accounts for their lighter colour. Xanthophyte cell walls are made of cellulose and hemicellulose.[7] They may be the closest relatives of the brown algae.

Yellow-green Algae Media

References

  1. ↑ Allorge, P. Heterocontées ou Xanthophycées?. Rev. Alg. 5 (1930). p. 230.
  2. ↑ Fritsch, F.E. (1935) The Structure and Reproduction of the Algae. Volume I. Introduction, Chlorophyceae, Xanthophyceae, Chrysophyceae, Bacillariophyceae, Cryptophyceae, Dinophyceae, Chloromonadineae, Euglenineae, Colourless Flagellata. Cambridge University Press, Cambridge.[page needed]
  3. ↑ Lüther, A.. Über Chlorosaccus eine neue Gattung der Süsswasseralgen. Bihang Til Kongliga Svenska Vetenskaps-Akademiens Handlingar 24 (1899). p. 1–22. OCLC 178060545.
  4. ↑ Hibberd, D. J.. Notes on the taxonomy and nomenclature of the algal classes Eustigmatophyceae and Tribophyceae (synonym Xanthophyceae). Botanical Journal of the Linnean Society 82 (2) (February 1981). p. 93–119. doi:10.1111/j.1095-8339.1981.tb00954.x.
  5. ↑ Leedale, G.F.. An illustrated Guide to Protozoa (1985). Lawrence, Kansas: Society of Protozoologists. p. 70–.[page needed]
  6. ↑ Hiberd, D. J.. Handbook of Protoctista (1990). Boston, Massachusetts, USA: Jones and Bartlett Publishers. p. 686–97.
  7. ↑ 7.0 7.1 Stace, Clive A.. Plant taxonomy and biosystematics (1991)Cambridge University Press. ISBN 978-0-521-42785-2.