155,566 species and infraspecific names are in the database, 21,916 images, 60,163 bibliographic items, 438,693 distributional records.

Characiopodium G.L.Floyd & Shin Watanabe, 1993

Classification:
Empire Eukaryota
Kingdom Plantae
Subkingdom Viridiplantae
Infrakingdom Chlorophyta infrakingdom
Phylum Chlorophyta
Subphylum Chlorophytina
Class Chlorophyceae
Order Sphaeropleales
Family Sphaeropleaceae

Holotype species: Characiopodium typicum (K.W.Lee & Bold) G.L.Floyd & Shin Watanabe

Original publication and holotype designation: Floyd, G.L, Watanabe, S. & Deason, T.R. (1993). Comparative ultrastructure of the zoospores of eight species of Characium (Chlorophyta). Archiv für Protistenkunde 143: 63-73.

Taxonomic status: currently recognized as a distinct genus.

Description: Solitary or clusters of fusiform, elliptical to spherical cells mostly attached by one end to substratum, sometimes free living in culture. Cells walls thin sometimes with papillate thickening at one or both ends of cell. Cells multinucleate; chloroplasts single and parietal, band shaped to perforate with one to eight pyrenoids. Asexual reproduction by aplanospores or zoospores. Zoospores uninucleate without cell wall but with usually covering of "fuzzy material". Contractile vacuole present beneath basal bodies at cell anterior. Chloroplast extends entire length of zoospore and has posterior pyrenoid with starch sheath; with or without stigma. Basal bodies directly opposed. Sexual reproduction unknown. Characiopodium from freshwater; reported from North America, Europe and Asia; all species (C. pseudopolymorphum, C. hindakii, C. californicum, C. typicum) available from UTEX. In culture growing in both liquid media and on agar. Characiopodium is a segregate from Characium and is distinguished based on the multinucleate mature cells of CharaciopodiumSolitary or clusters of fusiform, elliptical to spherical cells mostly attached by one end to substratum, sometimes free living in culture. Cells walls thin sometimes with papillate thickening at one or both ends of cell. Cells multinucleate; chloroplasts single and parietal, band shaped to perforate with one to eight pyrenoids. Asexual reproduction by aplanospores or zoospores. Zoospores uninucleate without cell wall but with usually covering of "fuzzy material". Contractile vacuole present beneath basal bodies at cell anterior. Chloroplast extends entire length of zoospore and has posterior pyrenoid with starch sheath; with or without stigma. Basal bodies directly opposed. Sexual reproduction unknown. Characiopodium from freshwater; reported from North America, Europe and Asia; all species (C. pseudopolymorphum, C. hindakii, C. californicum, C. typicum) available from UTEX. In culture growing in both liquid media and on agar. Characiopodium is a segregate from Characium and is distinguished based on the multinucleate mature cells of Characiopodium

Information contributed by: D. Garbary. The most recent alteration to this page was made on 1 Mar 2013 by M.D. Guiry.

Numbers of names and species: There are 5 species names in the database at present, of which 5 have been flagged as accepted taxonomically on the basis of the listed literature under the species name. In some instances, opinions on taxonomic validity differ from author to author and users are encouraged to form their own opinion. AlgaeBase is a work in progress and should not be regarded as a definitive source only as a guide to the literature..

Names: ('C' indicates a name that is accepted taxonomically; 'S' a homotypic or heterotypic synonym; 'U' indicates a name of uncertain taxonomic status, but which has been subjected to some verification nomenclaturally; 'P' indicates a preliminary AlgaeBase entry that has not been subjected to any kind of verification. For more information on a species click on it to activate a link to the Species database):

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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.

Created: 16 April 2003 by M.D. Guiry

Verified by: 01 March 2013 by M.D. Guiry

Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=45252

Citing AlgaeBase
Please cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2019. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 20 June 2019.

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