Home / Chlorophyceae / Unicells / Flagellated / Chlainomonas

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Name derivation:

‘Cloaked flagellate’ – Chlamy- cloak or mantle; -monas flagellate (Gr.)

Classification:

Chlainomonas  H.R.Christen  1959;  3 of 3 species descriptions are currently accepted taxonomically (Guiry 2012).

Order Chlamydomonadales;  Family Chlamydomonadaceae

 

Morphology:

Elliptical unicel with four flagella inserted at apex.  Cell membrane is separated from the wall by a hyaline layer.  Chloroplast usually cup-shaped.  Some species have a stigma.  No sexual stages are reported.  Asexual reproduction produces four motile zoospores.  Aplanospore and akinete stages are known.

Chainomonas rubra develops a bright red color on snow.

 

Similar genera:

Chlamydomonas and Chloromonas are morphologically similar.

 

Habitat:

Snow;  reported from western USA (Washington) and western Canada (British Columbia), Australia and New Zealand (Novis et al. 2008)

 

 

References:

Christen, H.R.  1959.  Flagellaten aus dem Schützenweiher bei Veltheim.  Mitteilungen der naturwissenschaftlichen gesellschaft in Winterthur 29: 167-189.

Guiry, M.D. and G.M.  Guiry  2012.  AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 22 December 2012.

Novis, P.M., R.W. Hoham, T. Beer and M. Dawson  2008. Two snow species of the quadriflagellate green alga Chlainomonas (Chlorophyta, Volvocales): ultrastructure and phylogenetic position within the chloromonas clade. Journal of Phycology 44: 1001-1012.