Teleaulax D.R.A.Hill, 1991: 177
Classification:
Empire Eukaryota
Kingdom Chromista
Phylum Cryptophyta
Class Cryptophyceae
Order Pyrenomonadales
Family Geminigeraceae
Holotype species: Teleaulax acuta (Butcher) D.R.A.Hill
Original publication and holotype designation:Hill, D.R.A. (1991). A revised circumscription of Cryptomonas (Cryptophyceae) based on examination of Australian strains. Phycologia 30: 170-188, 40 figs, 2 tables.
Taxonomic status: currently recognized as a distinct genus.
Description: Free-swimming, biflagellate monads, obovoid or fusiform and slightly compressed; a longitudinal furrow extends from the sub-apical vestibulum almost to the posterior of the cell and is lined with four or more conspicuous rows of ejectisomes, gullet absent; a single chloroplast pyrenoid and nucleomorph, the chloroplast containing the phycobiliprotein Cr-phycoerythrin 545, and is brown fading to yellow-brown in older cells; the periplast with an inner component sheet and a superficial component of rosulate scales sandwiching the plasma membrane. Repreduction occurs by simple cell division in the motile state; palmelloid colonies apparently not formed; cysts and sexual reproduction unknown. The ultrastructure has been examined. The nucleomorph is located in the periplastidial compartment anterior to the pyrenoid; thylakoids do not traverse the pyrenoidal matrix. The thylakoids in T. acuta are arranged in three's rather than the usual loosely associated pairs in other cryptomonads. Teleaulax acuta possesses an unusual type of Cr-phycoerythrin 545. Although Teleaulax is common and often abundant in marine coastal habitats worldwide, it has rarely been recorded in the literature, probably due to it being overlooked because of the delicate nature of the cells and the difficulty in bringing it successfully into unialgal culture. The genus has been recorded in European, Japanese and Australian waters
NCBI Nucleotide Sequences
Numbers of names and species: There are 5 species (and infraspecific) names in the database at present, of which 4 have been flagged as currently accepted taxonomically.
Names: ('C' indicates a name that is currently 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):
Teleaulax acuta (Butcher) D.R.A.Hill C - type
Teleaulax amphioxeia (W.Conrad) D.R.A.Hill C
Teleaulax gracilis Laza-Martinez C
Teleaulax merimbula D.R.A.Hill C
Teleaulax minuta Laza-Martinez C
References
Throndsen, J. (1996). The planktonic marine flagellates. In: Identifying marine phytoplankton. (Tomas, C.R. Eds), pp. 591-730. San Diego: Academic Press.
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: http://www.algaebase.org/search/genus/detail/?genus_id=46329
Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2013. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 24 May 2013.
Algaebase taxon LSID: urn:lsid:algaebase.org:taxname:5740
