Heterochlamydomonas Ed.R.Cox & Deason, 1969

Holotype species: Heterochlamydomonas inaequalis Ed.R.Cox & T.R.Deason

Original publication and holotype designation: Cox, E.R. & Deason, T.R. (1969). Heterochlamydomonas, a new alga from Tennessee. Journal of the Tennessee Academy of Sciences 44: 105-107.

Description: Unicellular thalli ellipsoidal with a rounded to blunt posterior pole. Two anterior anisokont flagella. Basal bodies parallel. Highly-dissected and perforate, parietal chloroplast contains a single pyrenoid and stigma. Papilla absent. Single nucleus positioned near posterior end. Two anterior contractile vacuoles. Asexual reproduction by zoosporogenesis (sporangium non-motile) resulting in two to eight motile daughter cells. No other asexual stages have been reported. Sexual reproduction is (probably) isogamous. Zygotes are spherical without wall ornamentation.

Information contributed by: M. Buchheim. The most recent alteration to this page was made on 2016-02-02 by M.D. Guiry.

Taxonomic status: This name is of an entity that is currently accepted taxonomically.

Comments: All species of Heterochlamydomonas are known only from soil samples from Bledsoe, Van Buren, and Wilson counties in Tennesse (United States). Floyd and others have studied the ultrastructure of the flagellar apparatus in H. inaequalis. No biochemical or molecular data are available for this organism.

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Contributors
Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in CD format. These AlgaeBase descriptions are now being continually updated, and each current contributor is identified above. The PSA and AlgaeBase warmly acknowledge the generosity of all past and present contributors and particularly the work of Dr Parker.

Descriptions of chrysophyte genera were subsequently published in J. Kristiansen & H.R. Preisig (eds.). 2001. Encyclopedia of Chrysophyte Genera. Bibliotheca Phycologica 110: 1-260.

Linking to this page: https://www.algaebase.org/search/genus/detail/?genus_id=44557

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 02 February 2016. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 18 December 2024