WoRMS taxon details
Aureoumbra lagunensis D.A.Stockwell, DeYoe, Hargraves & P.W.Johnson, 1997
375701 (urn:lsid:marinespecies.org:taxname:375701)
accepted
Species
marine
DeYoe, H. R.; Stockwell, D. A.; BIdigare, R. R.; Latasa, M.; Johnson, P. W.; Hargraves, P. E.; Suttle, C. A. (1997). Description and characterization of the algal species Aureoumbra lagunensis gen. et sp. nov. and referral of Aureoumbra and Aureococcus to the Pelagophyceae. <em>Journal of Phycology.</em> 33(6): 1042-1048, 12 figs, 1 table. [details]
LSID urn:lsid:algaebase.org:taxname:52307
Description Cells golden brown, spherical or subspherical, uninucleate with two basal bodies, with a single chloroplast and stalked...
LSID urn:lsid:algaebase.org:taxname:52307 [details]
Description Cells golden brown, spherical or subspherical, uninucleate with two basal bodies, with a single chloroplast and stalked...
Description Cells golden brown, spherical or subspherical, uninucleate with two basal bodies, with a single chloroplast and stalked pyrenoid, lacking an eyespot. “Aureo” is derived from “aureus” meaning golden and “umbra” refers to the shading or reduced light penetration resulting from high concentrations of this alga in the Laguna Madre. Cells 2.5-5.0 μm in diameter. Golgi body immersed in the cytoplasm. Extracellular polysaccharide-like material present. Cyst or resting stages unknown. Ejectile organelles not observed. The epithet “lagunensis” refers to the lagoon environment from which the alga was isolated. [details]
Guiry, M.D. & Guiry, G.M. (2024). AlgaeBase. World-wide electronic publication, National University of Ireland, Galway (taxonomic information republished from AlgaeBase with permission of M.D. Guiry). Aureoumbra lagunensis D.A.Stockwell, DeYoe, Hargraves & P.W.Johnson, 1997. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=375701 on 2024-04-19
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original description
DeYoe, H. R.; Stockwell, D. A.; BIdigare, R. R.; Latasa, M.; Johnson, P. W.; Hargraves, P. E.; Suttle, C. A. (1997). Description and characterization of the algal species Aureoumbra lagunensis gen. et sp. nov. and referral of Aureoumbra and Aureococcus to the Pelagophyceae. <em>Journal of Phycology.</em> 33(6): 1042-1048, 12 figs, 1 table. [details]
basis of record Guiry, M.D. & Guiry, G.M. (2023). AlgaeBase. <em>World-wide electronic publication, National University of Ireland, Galway.</em> searched on YYYY-MM-DD., available online at http://www.algaebase.org [details]
basis of record Guiry, M.D. & Guiry, G.M. (2023). AlgaeBase. <em>World-wide electronic publication, National University of Ireland, Galway.</em> searched on YYYY-MM-DD., available online at http://www.algaebase.org [details]
From editor or global species database
LSID urn:lsid:algaebase.org:taxname:52307 [details]From regional or thematic species database
Description Cells golden brown, spherical or subspherical, uninucleate with two basal bodies, with a single chloroplast and stalked pyrenoid, lacking an eyespot. “Aureo” is derived from “aureus” meaning golden and “umbra” refers to the shading or reduced light penetration resulting from high concentrations of this alga in the Laguna Madre. Cells 2.5-5.0 μm in diameter. Golgi body immersed in the cytoplasm. Extracellular polysaccharide-like material present. Cyst or resting stages unknown. Ejectile organelles not observed. The epithet “lagunensis” refers to the lagoon environment from which the alga was isolated. [details]Harmful effect Aureoumbra formed brown tides on the coast of Texas and has been reported also from Florida and from Mexico. It caused disappearance of the dominant clam, Mulinia lateralis, and other grazers. Cells form an extracellular polysaccharide sheath. The sheath is thought to adhere to cilia of the clam, which are essential for feeding. Motility of protozoans is also affected. [details]
Identification Although similar in appearance, A. lagunensis and A. anophagefferens differ in cell size (Stockwell et al. 1993), pyrenoid form, pigment ratios, nitrogen physiology (DeYoe and Suttle 1994), growth temperature optima (DeYoe, unpubl.), and most notably, in 18s rRNA gene sequences (DeYoe et al. 1995). Furthermore, A. lagunensis possesses a pair of basal bodies that is lacking in A. anophagefferens. Based on these data, it is clear that A. lagunensis and A. anophagefferens are not the same organism, and the erection of the genus Aureoumbra is justified.
[details]
