HABs taxon details
context source (ERMS)
Gkelis, S.; Ourailidis, I.; Panou, M.; Pappas, N. (2016). Cyanobacteria of Greece: an annotated checklist. <em>Biodiversity Data Journal.</em> 4: e10084., available online at https://doi.org/10.3897/bdj.4.e10084 [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 regional or thematic species database
Description Trichomes free-floating, solitary, rarely up to 2110 μm long (?), but usually ± short, straight or slightly bent or coiled, isopolar, narrowed at both ends and pointed, not or very slightly constricted at the cross-walls, which are sometimes hardly visible in the light microscope; trichomes slightly disintegrate, free segments rounded at one or both ends. Cells cylindrical, light or greyish blue-green, with homogeneous content or facultatively with solitary, elongated aerotopes, mostly 2-5 (10) x lon¬ger than wide, (0.8) 1-2.5 (3.3) μm wide in the middle, at the ends elongated, narrowed, mostly 1.6 μm wide and sharply pointed. Heterocytes lacking. Akineteswith intercalary development, solitary or 2-4 in a row, cylindrical, long ellipsoid or barrel-shaped, with smooth, colourless or brownish exospore, with pale blue-green and granular content, rounded or flattened at the ends, (5.5) 6.5-16 (32) x (2) 2.5-5.2 (6.4) μm. [details]
Harmful effect Producer of anatoxin-a and homoanatoxin-a [details]
Identification R. mediterranea var. grandis Hill 1970 from N America (and recorded also from Japan) is similar to Cuspidothrix issatschenkoi without heterocytes. Forma major Yoneda 1953 was described from Japan (cf. Umezakia, p. 766). [details]
Remark Heterocysts, nitrogen fixing filamentous form [details]
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