Trichosarcina H.W.Nichols & Bold, 1965, nom. inval.

Holotype species: Trichosarcina polymorpha H.W.Nichols & Bold

Original publication and holotype designation: Nichols, H.W. & Bold, H.C. (1965). Trichosarcina polymorpha gen. et sp. nov. Journal of Phycology 1: 34-38, 33 figs.

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Description: Plants initially formed of uniseriate filaments, soon becoming pluriseriate, filamentous organization often lost on transformation into series of sarcinoid packets of cells that ultimately dissociate. Cells with single parietal chloroplast and pyrenoid. Asexual reproduction by quadriflagellate zoospores produced singly in cells of pluriseriate filaments and those forming sarcinoid packets. Sexual reproduction unknown. Grows in shallow and temporary rainwater pools in USA. Trichosarcina closely related to Pseudendoclonium from which it differs by producing a single zoospore per cell, not being heterotrichous, and its multiseriate condition. Ultrastructural investigations reveal that in both genera the pyrenoids are traversed by thylakoids, and plasmodesmata and phycoplast are absent.Plants initially formed of uniseriate filaments, soon becoming pluriseriate, filamentous organization often lost on transformation into series of sarcinoid packets of cells that ultimately dissociate. Cells with single parietal chloroplast and pyrenoid. Asexual reproduction by quadriflagellate zoospores produced singly in cells of pluriseriate filaments and those forming sarcinoid packets. Sexual reproduction unknown. Grows in shallow and temporary rainwater pools in USA. Trichosarcina closely related to Pseudendoclonium from which it differs by producing a single zoospore per cell, not being heterotrichous, and its multiseriate condition. Ultrastructural investigations reveal that in both genera the pyrenoids are traversed by thylakoids, and plasmodesmata and phycoplast are absent.

Information kindly contributed by D.M. John but may now be outdated.

Taxonomic status: The taxonomic or nomenclatural status (or both) of this entity is in some way unresolved and requires further investigation.

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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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.

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Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 09 October 2017. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 20 April 2024