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Doliocatella

Generic name: DOLIOCATELLA Geitler, 1933. Arch. Hydrobiol., Suppl. 12: 630.
Synonyms:
Diagnosis:
Type species: Doliocatella formosa Geitler 1933
Descriptions:
Komárek (1992): Filamentous – thallous; filaments attached to the substrate, erected, joined to the fasciculated, brownish thallus, up to 1/2 cm long, but without special adhering cellular organelles or discs. Trichomes uniserial, laterally (usually unilaterally) true-branched (T-type), composed from barrel-shaped cells, Basal parts of filaments thick, torulous, not branched, younger parts thinner, more or less cylindrical, morphologically different from basal filaments; in upper parts of filaments common ramification, branches short, arcuated. Sheaths thin or thick, colourless up to yellow-brown, sometimes copying the moniliform shape of trichomes; around cells in old filaments own thick envelopes. Cells with homogeneous or granular (often peripherally) content, more or less isodiametrical, old cells sometimes vacuolized, cells in hormogonia granular. Heterocytes and akinetes missing.
Genotype differences, molecular data:
Reproduction strategies, life cycles, cell division:
Komárek (1992): Cells divide crosswise or lengthwise (before the branching). Reproduction by hormogonia. usually 5-15-celled, which arise on the ends of short branches, and probably by fragments of thallus.
Ultrastructure:
Taxonomic position, higher hierarchy:
Cyanophyceae, Stigonematales, Fischerellaceae
Notes to taxonomy, misinterpretations:Monotypic
genus
Ecology, ecophysiology, ecological
significance:
Komárek (1992): The single species, D. formosa, has a special ecology: it was found only in streaming (waterfalls), very acid (pH = about 5.5) waters in Indonesia (Sumatra).
Physiology and biochemistry:
Distribution, endemism, problematic citations:
Reference strain:
Infrageneric scheme, species concept:

List of species:

Doliocatella formosa Geitler 1933
Doliocatella groenlandica Böcher 1950. Meddelelser om Grønland 147(5): 10

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

  2.1 taxonomy: Geitler & Ruttner 1935, Geitler 1942, Komárek 1992
  2.2 cytomorphology:
  2.3 16S rRNA sequencing:
  2.4 biology and life cycles:
  2.5 ecology: