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CaRMS taxon detailsDolichospermum sigmoideum (Nygaard) P. Wacklin, L. Hoffmann & J. Komárek, 2009
625408 (urn:lsid:marinespecies.org:taxname:625408)
accepted
Species
Anabaena circinalis Rabenhorst ex Bornet & Flahault, 1886 · unaccepted (synonym)
Not documented
LSID urn:lsid:algaebase.org:taxname:104715
LSID urn:lsid:algaebase.org:taxname:104715 [details] Description Trichomes free-floating, solitary, or entangled in dense, microscopic clusters, but mostly occurring in short, variously...
Description Trichomes free-floating, solitary, or entangled in dense, microscopic clusters, but mostly occurring in short, variously curved fragments of filaments, or irregularly coiled (width of irregular coils mostly 20-37 μm), free-floating, constricted at the cross-walls, not attenuated towards ends. Cells ellipsoid or typical barrel-shaped, usually a little longer than wide, blue-green or yellowish, 4-8.5 x (2.5) 3-4 (5.3) μm; apical cells of the same shape and size as the vegetative cells. Het¬erocytes solitary, intercalary (only after fragmentation occasionally in terminal position), oval, always a little elongated, 5-7.5 x 4-5 (7) μm. Akinetes intercalary, separated from the heterocytes usually by 1-4 cells, solitary, cylindrical with rounded ends, sometimes slightly arcuated, with smooth, colourless exospore, (12) 16-21.5 (27.4?) x (5.7?) 6.8-8.5 μm. [details]
Guiry, M.D. & Guiry, G.M. (2025). AlgaeBase. World-wide electronic publication, National University of Ireland, Galway (taxonomic information republished from AlgaeBase with permission of M.D. Guiry). Dolichospermum sigmoideum (Nygaard) P. Wacklin, L. Hoffmann & J. Komárek, 2009. Accessed through: Nozères, C., Kennedy, M.K. (Eds.) (2025) Canadian Register of Marine Species at: https://marinespecies.org/carms/aphia.php?p=taxdetails&id=625408 on 2025-09-16
Nozères, C., Kennedy, M.K. (Eds.) (2025). Canadian Register of Marine Species. Dolichospermum sigmoideum (Nygaard) P. Wacklin, L. Hoffmann & J. Komárek, 2009. Accessed at: https://www.marinespecies.org/CaRMS/aphia.php?p=taxdetails&id=625408 on 2025-09-16
Date action by 2015-06-26 12:00:51Z changed db_admin
basis of record
Guiry, M.D. & Guiry, G.M. (2025). 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]
 Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Harmful effect Anatoxins, microcystins potential producer (Colombia) from Claudia Tapia-Larios and Jesus Olivero-Verbel 2023 [details]LSID urn:lsid:algaebase.org:taxname:104715 [details] From regional or thematic species database
Description Trichomes free-floating, solitary, or entangled in dense, microscopic clusters, but mostly occurring in short, variously curved fragments of filaments, or irregularly coiled (width of irregular coils mostly 20-37 μm), free-floating, constricted at the cross-walls, not attenuated towards ends. Cells ellipsoid or typical barrel-shaped, usually a little longer than wide, blue-green or yellowish, 4-8.5 x (2.5) 3-4 (5.3) μm; apical cells of the same shape and size as the vegetative cells. Het¬erocytes solitary, intercalary (only after fragmentation occasionally in terminal position), oval, always a little elongated, 5-7.5 x 4-5 (7) μm. Akinetes intercalary, separated from the heterocytes usually by 1-4 cells, solitary, cylindrical with rounded ends, sometimes slightly arcuated, with smooth, colourless exospore, (12) 16-21.5 (27.4?) x (5.7?) 6.8-8.5 μm. [details]Identification Tendency to formation of ± straight trichomes only in cultures, natural populations are not very variable. In culture the length: width ratio of vegetative cells can be highly variable. Often misinterpreted with "Anabaenaflos-aquae", morphological transitions to D. mendotae also exist. Anabaena incrassata Nygaard 1929 likely belongs within the wide variability of this species. [details]
Published in AlgaeBase
 (from synonym Anabaena circinalis Rabenhorst ex Bornet & Flahault, 1886)Published in AlgaeBase To Biodiversity Heritage Library (109 publications) (from synonym Anabaena circinalis Rabenhorst ex Bornet & Flahault, 1886) To European Nucleotide Archive, ENA (Dolichospermum sigmoideum) To Genbank To GenBank (124 nucleotides; 19485 proteins) (from synonym Anabaena circinalis Rabenhorst ex Bornet & Flahault, 1886) To PESI (from synonym Anabaena circinalis Rabenhorst ex Bornet & Flahault, 1886) |