Home

Cylindrospermum

Generic name: CYLINDROSPERMUM Kützing ex Bornet et Flahault 1888. Ann. Sci. Nat. Bot., ser. 7,
7: 249.
Synonyms: [ CYLINDROSPERMUM Kützing, Phycologia generalis, p. 211, 1843 ex Bornet et Flahault, 1886: Oscillatoria, Anabaena, Sphaerozyga sp.]
Diagnosis:
Bornet et Flahault (1888): Trichomata aequalia, brevia, evaginata, muco amorpho involuta, in stratum indefinite expansum aggregata; articuli cylindrici diamelro longiores. Heterocystae terminales. Sporae sub heterocysta ortae, singulae, rarius plurimae seriatae. (Conf. Thuret, Observations sur la reproduction de quelques Nostochinees, in Memories de la Soc. des sc. de Cherbourg, 1857, t. V; - Borzi, Morfologia, etc., in Nuovo Giornale bot. ital., 1878, vol. X.)
Type species: Cylindrospermum majus Kutzing ex Bornet et Flahault 1888
Descriptions:
Komárek (1992): Filaments in fine or compact, mucilaginous mats, slightly curved or irregularly coiled, cylindrical along the whole length or slightly narrowed in the middle, without sheaths, but with very fine, colourless, homogeneous, diffluent mucilage, symmetrical, constricted at the cross walls. Cells cylindrical, more or less isodiametric or longer than wide, rarely barrel-shaped or almost spherical, without aerotopes, sometimes with dispersed granules and visible chromatoplasma, pale or bright, blue-green. Heterocytes always only terminal (arise from end cells), ovoid, oval or conical, unipored, developing at both ends of trichomes, rarely only at the one end (facultatively?). Akinetes develop only close to heterocytes, at both trichome ends, rarely spherical, usually oval or cylindrical, solitary or in rows up to 7, sometimes
with sculptured outer cell wall layers.
Genotype differences, molecular data:
Reproduction strategies, life cycles, celldivision:
Komárek (1992):Cells divide cross-wise and grow more or less into the original size before the next division. Without meristematic zones, all cells capable to divide. Reproduction by trichome fragmentation into hormogonia and by akinetes.
Ultrastructure:
Taxonomic position, higher hierarchy: Cyanophyceae,
Nostocales, Nostocaceae, Anabaenoideae
Notes to taxonomy, misinterpretations:About 50 species, several need revision.
Ecology, ecophysiology, ecological significance:
Komárek (1992):Mainly periphytic species, growing in benthos, on water plants and submersed woody and stony substrates, usually in not polluted and slightly eutrophized waters. Several species grow in soils. Mainly with geographically limited areas.
Physiology and biochemistry:
Distribution, endemism, problematic citations:
Reference strain:
Infrageneric scheme, species
concept:

List of species:
Cylindrospermum alatosporum Fritsch 1917
Cylindrospermum bengalense Biswass 1925
Cylindrospermum bourrellyi Komárek 1989
Cylindrospermum breve Welsh 1965
Cylindrospermum catenatum (Ralfs) ex Bornet et Flahault 1888. Ann. Sci. Nat. Bot., ser. VII, 7: 254
Cylindrospermum caucasicum Voronichin 1923
Cylindrospermum desikacharyi Komárek 1989
Cylindrospermum dobrudjense Draganov 1968
Cylindrospermum ecballiisporum Komárek 1975
Cylindrospermum fluviaticum Škorbatov 1923
Cylindrospermum gloeotrichioides Sinha et Pandey 1972
Cylindrospermum goetzei Schmidle 1901
Cylindrospermum gracile Gonsalves et Kamat 1960
Cylindrospermum indentatum G.S.West 1909
Cylindrospermum kazachstanicum Obuchova 1952
Cylindrospermum licheniforme (Bory) Kützing ex Bornet et Flahault 1888. Ann. Sci. Nat. Bot., ser. VII, 7: 253
Cylindrospermum longisporum Komárek 2012. Fottea 12(1): 142

Cylindrospermum maius Kützing ex Bornet et Flahault 1888. Ann. Sci. Nat. Bot., ser. VII, 7: 252
Cylindrospermum marchicum (Lemmermann) Lemmermann 1910
Cylindrospermum michailovskoense Elenkin 1911
Cylindrospermum minimum G.S.West
Cylindrospermum minutissimum Collins 1896
Cylindrospermum muscicola Kützing ex Bornet et Flahault 1888. Ann. Sci. Nat. Bot., ser.VII, 7: 254
Cylindrospermum paludicola Komárek 2012. Fottea 12(1): 143
Cylindrospermum plactonicum Cronberg 2003. Algological Studies 109: 205
Cylindrospermum punctatum Voronichin 1923
Cylindrospermum rectangulare Playfair 1915
Cylindrospermum schweickerdtii Cholnoky 1952
Cylindrospermum skujae Komárek 2008
Cylindrospermum sphaericum Prasad 1953
Cylindrospermum stagnale (Kützing) ex Bornet et Flahault 1888. Ann. Sci. Nat. Bot., ser. VII, 7: 250
Cylindrospermum toledii Budde 1929
Cylindrospermum trichotospermum Frémy 1930
Cylindrospermum tropicum W. et G.S. West 1902
Cylindrospermum voukii Pevalek 1916
Cylindrospermum zonatum Komárek 1989

Unclear taxa:
Anabaena cylindrica sensu Rich 1933
Cylindrospermum echinulatum Gonzalves et Kamat 1960
Cylindrospermum humicola Kützing sensu Vildeman 1896
Cylindrospermum minutum Wood sensu Prescott 1962
Cylindrospermum urumoffii Petkoff 1925

Keys:
List of stains:
Drawings:
Komárek
1992
Application technology:
Literature:

  2.1 taxonomy: Geitler 1932, Kondrateva 1968, Komárek 1975, Komárek 1989, Komárek 1992
  2.2 cytomorphology:
  2.3 16S rRNA sequencing:
  2.4 biology and life cycles:
  2.5 ecology: