Characiopodium G.L.Floyd & S.Watanabe, 1993

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.

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 2013-03-01 by M.D. Guiry.

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

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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=45252

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 01 March 2013. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 24 November 2024