Gymnodinium trapeziforme Attaran-Fariman & Bolch
Gymnodinium trapeziforme Attaran-Fariman & Bolch in Attaran-Fariman et al. 2007: 647, figs 2-22
Published in: Attaran-Fariman, G., de Salas, M. F., Negri, A.P. & Bolch, C.J.S. (2007). Morphology and phylogeny of Gymnodinium trapeziforme sp. nov. (Dinophyceae): a new dinoflagellate from the southeast coast of Iran that forms microreticulate resting cysts. Phycologia 46(6): 644-656.
Publication date: 2007
Status of name
This name is of an entity that is currently accepted taxonomically.
No synonyms are currently included in AlgaeBase.
No habitat entry has yet been made for this entity.
Cells biconical to ovoid, slightly dorsoventrally compressed, 28-36 microns long, 17-27 microns wide, and 15-21 microns deep. Cingulum equatorially placed and descending, deeply excavated, displaced approximately one fifth of the cell length. Sulcus wide in the hypocone, narrowing in the intercingular region, and extending approximately two thirds of the ventral epicone as a straight narrow groove. Apical groove horseshoe-shaped, extending from near the anterior sulcus and around the apex in anticlockwise direction. Nucleus large, ovoid to tear-shaped, positioned in the right side of the cell, extending from the middle of the hypocone to near the apex. Chloroplasts yellow-brown and peripherally placed, irregular to ribbon-like in shape. Resting cysts trapezoidal to subrectangular in outline and dorsoventrally compressed; 26-34 microns long, 20-27 microns wide, 8-10 microns deep. Cytoplasm globular and colourless wih an orange-yellow accumulation body; cyst wall pale-brown to purple-brown, covered with a raised polygonal reticulum arranged after the pattern of the cingulum, sulcus and amphiesmal vesicles of the vegetation cell. Paracingular width approximately one fourth of the cyst length. Archeopyle chasmic, with variable orientation.
Type locality: Pasabander, South coast of Iran (Attaran-Fariman et al. 2007: 647). Holotype: March 2004; Coastal sediments. (Attaran-Fariman et al. 2007: 647). Notes: Holotype: Fig.2; from culture strain GYPC 102. The type culture is maintained at the Univ. of Tasmania, School of Aquaculture Laboratories, Launceston.
Thessen, A.E., Patterson, D.J. & Murray, S.A. (2012). The taxonomic significance of species that have only been observed once: The genus Gymnodinium (Dinoflagellata) as an example. PLoS ONE 7(8): e44015.
Created: 13 March 2008 by Wendy Guiry
Verified by: 06 May 2013 by M.D. Guiry
Accesses: This record has been accessed by users 481 times since it was created.
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Attaran-Fariman, G., de Salas, M. F., Negri, A.P. & Bolch, C.J.S. (2007). Morphology and phylogeny of Gymnodinium trapeziforme sp. nov. (Dinophyceae): a new dinoflagellate from the southeast coast of Iran that forms microreticulate resting cysts. Phycologia 46(6): 644-656.
Linking to this page: http://www.algaebase.org/search/species/detail/?species_id=133213
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2020. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 26 February 2020.