Chlorophyta

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Caspian Sea shows swirls of green and blue near the mouth of the Volga River (top center), which indicate the presence of algae.

Chlorophyta are a division of green algae.[1]

It includes about 7,000 species of mostly aquatic photosynthetic eukaryote organisms.[2][3]

Like the land plants, green algae contain chlorophylls a and b, and store food as starch[2] in their plastids.

They are related to the Charophyceae and land plants, together making up the Viridiplantae.

The division contains both unicellular and multicellular species. While most species live in freshwater habitats and a large number in marine habitats, other species are adapted to a wide range of environments. Watermelon snow, or Chlamydomonas nivalis, lives on summer alpine snowfields. Others live attached to rocks or woody parts of trees. Some lichens are symbiotic relationships between fungi and green algae.

Members of the Chlorophyta also form symbiotic relationships with protozoa, sponges and cnidarians. All are flagellated,[4] and so have an advantage of motility. Some conduct sexual reproduction.

References[change | change source]

  1. Guiry M.D. & Guiry G.M. (2007). "Phylum: Chlorophyta taxonomy browser". AlgaeBase version 4.2 World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org/browse/taxonomy/?id=4307. Retrieved 2007-09-23.
  2. 2.0 2.1 Hoek, C. van den, Mann, D.G. and Jahns, H.M. 1995. Algae An Introduction to Phycology. Cambridge University Press, Cambridge. ISBN 0-521-30419-9
  3. "Major Algae Phyla - Table - MSN Encarta". Archived from the original on 2009-10-31. http://www.webcitation.org/5kwQwljiE.
  4. Kapraun DF (April 2007). "Nuclear DNA content estimates in green algal lineages: chlorophyta and streptophyta". Ann. Bot. 99 (4): 677–701. doi:10.1093/aob/mcl294. PMC 2802934. PMID 17272304. http://aob.oxfordjournals.org/cgi/pmidlookup?view=long&pmid=17272304.