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Geitleribactron

Generic name: GEITLERIBACTRON Komárek, 1975. Plant Syst. Evol. 123: 276
Synonyms:
Diagnosis:
Type species: Geitleribactron periphyticum Komárek 1975
Description:
Komárek & Anagnostidis (1998): Heteropolar cells joined to the substrate by one end, solitary or in irregularly parallel or stellate groups. Cells ovoid-oval or shortly club-shaped when young, later cylindrical, rod-shaped, rounded at the apex, slightly and shortly attenuate or rounded at the base, attached to the substrate by fine mucilaginous pad, scarcely visible in light microscope (staining !); without sheaths. Cell content homogeneous, grey-blue, blue-green or olive-green, rarely. slightly granulate, sometimeswith differentiated chromato- and centroplasmic areas (peripheral arrangement of thylakoids).
Komárek (1992): Solitary cells or groups of cells, joined by one end to the substrate. Cell polarized, differentiated in the rounded and sometimes narrowed basal end, attached by the help of a small mucilaginous pad to the substrate (staining !), and in the apical rounded end; they are cylindrical, straight or slightly curved, slightly club-shaped or oval when young, without any sheath. Cell content greyish or pale blue-green, more or less homogeneous or slightly granular. Thylakoids situated peripherally along the cell walls as a visible chromatoplasma. Filamentous involution cells.
Genotype differences, molecular data:
Reproduction strategies, life cycles, cell division:
Komárek & Anagnostidis (1998): Cell division transverse, more or less in the middle or in the upper part of a cell (asymmetrically displaced towards the apex), rarely two divisions occur almost simultaneously. The liberated, usually elongate apical daughter cell becomes: attached to the substrate by either end.
Komárek (1992): Cell division perpendicularly to the longer axis of cells, usually asymmetrically in their upper part, rarely in the middle. The upper daughter cells (exocytes) liberate from the sessile part and attach by one end again to the substrate; very rarely separate two exocytes almost simultaneously.
Ultrastructure:
Taxonomic position, higher hierarchy:
Cyanophyceae, Chroococcales, Chamaesiphonaceae
Notes to taxonomy, misinterpretations: Two species.
Ecology, ecophysiology, ecological significance:
Komárek (1992): The both species grow attached to the water plants, filamentous algae, detritus particles and solid substrates in the littoral of clear or slightly eutrophized lakes, ponds and similarwater bodies. Known yet from the temperate zone of the Europe (Austria, Czechoslovakia, Finland, Germany).
Physiology and biochemistry:
Distribution, endemism, problematic
citations:
Reference strain:
Infrageneric scheme, species concept:
List of species:
Geitleribactron crassum Gold-Morgan et al. 1996
Geitleribactron periphyticum Komárek 1975
Geitleribactron subaequale (Geitler) Komárek 1975
Keys:
List of stains:
Drawings:
Komárek
1992
Application technology:
Literature:

  2.1 taxonomy: Geitler 1966 (sub Chamaesiphon), Golubić 1967 (sub Cyanophanon), Geitler 1970 (sub Chamaesiphon),Geitler 1973, Geitler 1975, Komárek 1975, Preisig 1979, Hallfors & Munsterhjelm 1982, Komárek & Anagnostidis 1986, Komárek 1992, Komárek & Anagnostidis 1998
  2.2 cytomorphology:
  2.3 16S rRNA sequencing:
  2.4 biology and life cycles:
  2.5 ecology: