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Cyanogranis

Generic name: CYANOGRANIS Hindák,1982. Algolog. Stud. 32: 244.
Synonyms:
Diagnosis:
Type species:Cyanogranis basifixa Hindák, 1982
Descriptions:
Komárek & Anagnostidis (1998):Colonies free floating, microscopic, subspherical to irregular in outline, mucilaginous, composed of a cluster of irregularly aggregated cells embedded within fine, homogeneous, colourless and diffluent slime. Ferric precipitates occur the gelatinous colonies. Cells spherical or subspherical, sometimes widely oval.
Komárek (1992): Unicellular - colonial; colonies are free floating, microscopical, up to 40-celled, mucilaginous, +/- spherical up to irregular, embedded by a fine, homogeneous, colourless and more or less diffluent slime, with irregularly localized cells in the centre. In the centre of the cluster of cells is situated one large, more or less spherical grain, usually brownish with iron-oxid precipitations, or several small precipitations are spread through the colony; colonies without precipitations are rare. The cells are heaped around the central body or gathered into the "small groups, spherical, oval or shortly cylindrical, pale greyish blue-green, without gas vesicles.
Genotype differences, molecular
data:
Reproduction strategies, life cycles, cell division:
Komárek & Anagnostidis (1998): Cell division only in the transverse plane, perpendicular to the longer axis of slightly elongate cells, in one plane in successive generations. Reproduction by fragmentation of colonies.
Komárek (1992):Cell division (pinching) repeatedly only ion one crosswise direction, perpendicular to the one (longer) axis of cells in successive generations. Reproductions by the disintegrations of colonies.
Ultrastructure:
Taxonomic position, higher hierarchy:
Cyanophyceae, Chroococcales, Synechococcaceae, Aphanothecoideae
Notes to taxonomy, misinterpretations:Two
species
Ecology, ecophysiology, ecological significance:
Komárek (1992):Planktic in fishponds, ponds and small reservoirs (gravel pit lakes) in Central Europe (Austria, Czechoslovakia, Germany). Little known genus
Physiology and biochemistry:
Distribution, endemism, problematic
citations:
Reference strain:
Infrageneric scheme, species
concept:
List of species:
Cyanogranis basifixa Hindák 1982
Cyanogranis ferruginea (Wawrik) Hindák ex Hindák 1982
Cyanogranis irregularis Joosten 2006
Cyanogranis libera Hindák 2002
Keys:
List of stains:
Drawings:
Komárek (1992)
Application technology:
Literature:

  2.1 taxonomy: Wawrik 1963(sub Microcystis), Heynig 1970 (sub Microcystis), Wawrik 1974(sub Microcystis), Hindák 1975, Hindák 1982, Hindák 1983, Hindák & Moustaka 1988, Komárek 1992, Komárek & Anagnostidis 1998
  2.2 cytomorphology:
  2.3 16S rRNA sequencing:
  2.4 biology and life cycles:
  2.5 ecology: