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HABs taxon detailsDolichospermum lemmermannii (Richter) P.Wacklin, L.Hoffmann & J.Komárek, 2009
 625374 (urn:lsid:marinespecies.org:taxname:625374)
accepted
Species
Not documented
Identification Variability is wide in cultures (loosening of trichome coiling). Position of akinetes is stable in nature, in culture...
Identification Variability is wide in cultures (loosening of trichome coiling). Position of akinetes is stable in nature, in culture anomalies have been observed. In nature there are differences mainly in length and length: width ratio of vegetative cells; Komarkova (1988) described two varieties/forms according to length of cells (var. lemmermannii with cells 4-12.3 x 3.1-4.7 μm, and var. minor (Utermohl) Komarkova with cells 2.9¬9.1 x 2.9-9 μm). According to sequencing of 16S rRNA gene, D. lemmermannii (sub Anabaena lemmermannii) is diversified also at the molecular level (Gugger & al. 2002a, 2002b). [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). Dolichospermum lemmermannii (Richter) P.Wacklin, L.Hoffmann & J.Komárek, 2009. Accessed through: Lundholm, N.; Churro, C.; Escalera, L.; Fraga, S.; Hoppenrath, M.; Iwataki, M.; Larsen, J.; Mertens, K.; Moestrup, Ø.; Murray, S.; Tillmann, U.; Zingone, A. (Eds) (2009 onwards) IOC-UNESCO Taxonomic Reference List of Harmful Micro Algae at: https://www.marinespecies.org/hab/aphia.php?p=taxdetails&id=625374 on 2024-04-24
Lundholm, N.; Churro, C.; Escalera, L.; Fraga, S.; Hoppenrath, M.; Iwataki, M.; Larsen, J.; Mertens, K.; Moestrup, Ø.; Murray, S.; Tillmann, U.; Zingone, A. (Eds) (2009 onwards). IOC-UNESCO Taxonomic Reference List of Harmful Micro Algae. Dolichospermum lemmermannii (Richter) P.Wacklin, L.Hoffmann & J.Komárek, 2009. Accessed at: https://www.marinespecies.org/hab/aphia.php?p=taxdetails&id=625374 on 2024-04-24
Date action by
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]
 Present Inaccurate Introduced: alien Containing type locality
From regional or thematic species database
Description Trichomes free-floating, rarely solitary (or in fragments), often entangled in dense clumps (up to 1.6 cm in diameter), irregularly coiled, constricted at the cross-walls, not attenuated towards ends. Cells barrel-shaped, isodiametric up to twice as long than wide, blue-green, 2.5-10 (12.2) x (2.5) 4-6.9 (7) μm; apical cells of the same shape and size as other vegetative cells, rounded. Heterocytes spherical to slightly elongated and oval, intercalary, solitary, (3.5) 5.8-7.9 (10.9) x (3.5) 5-6 (8.5) μm. Akinetes intercalary, develop singly on both sides of heterocytes (rarely in pairs), oval-cylindrical to kidney-shaped (slightly curved), (13) 15-20 (30) x (6.3) 7.9-11 (13.3?) μm, with smooth, colourless exospore; groups (ir¬regular clusters) of aggregated akinetes (with heterocytes) occur often in centre of entangled trichome clusters and at the end of growing periods, after disintegration of vegetative cells, they can float in the plankton for short periods. [details]Identification Variability is wide in cultures (loosening of trichome coiling). Position of akinetes is stable in nature, in culture anomalies have been observed. In nature there are differences mainly in length and length: width ratio of vegetative cells; Komarkova (1988) described two varieties/forms according to length of cells (var. lemmermannii with cells 4-12.3 x 3.1-4.7 μm, and var. minor (Utermohl) Komarkova with cells 2.9¬9.1 x 2.9-9 μm). According to sequencing of 16S rRNA gene, D. lemmermannii (sub Anabaena lemmermannii) is diversified also at the molecular level (Gugger & al. 2002a, 2002b). [details] Remark Heterocysts, nitrogen fixing filamentous form [details] |
