CYANO - DATABASE
Database of cyanoprokaryotes

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Database of genera

Generic name: CYANOPHANON Geitler, 1955. Österr. Bot. Zeitschr. 102: 269.

Synonyms:

Diagnosis:

Type species: Cyanophanon mirabile Geitler 1955

Descriptions: Komárek & Anagnostidis (1998): Heteropolar cells solitary or in groups, elongate, attached to the substrate by one end, long cylindrical when old, sometimes irregularly laterally or Y-shaped divaricate, at the base slightly widened-rounded and sometimes with short, cup- shaped, simple sheath (pseudovagina). Cell content pale blue-green, olive-green or light redaish, homogeneous or with solitary granules, usually with visible, separate chromatoplasma (lateral position of thylakoids). Komárek (1992): Unicellular; cells elongated, narrow, cylindrical up to very long cylindrical, heteropolar, rounded at the apex and shortly widened: at the base, attached to the substrate by help of the very fine, cup-shaped, colourless, thin pseudovagina. The "filamentous" cells are sometimes in the upper part asymmetrically pseudodichotomously divaricated, at the ends with developed rows of daughter cells - exocytes. Cell content pale blue-green, thylakoids in cells concentrically arranged along the cell walls.

Genotype differences, molecular data:

Reproduction strategies, life cycles, cell division: Komárek & Anagnostidis (1998): Reproduction by simultaneous or successive (from the apex) differentiation of exocytes in the upper part of the cylindrical cells, rarely along the whole cell; cell division by transverse fission. Exocytes separate one by one, or a great part of a cell is transformed into a row of exocytes; they are liberated terminally from the mother cell end, become attached by their long sides to the substrate, change their polarity and grow into a new cell from an upper side. Komárek (1992):Reproduction by exocytes, which different-late by the rapid successive (or almost spontaneous ?) crosswise fission of cell ends; they remain usually for a distinct period joined to the mother cell as rows of small cells, later separate, join to the substrate by their side, change their polarity and grow from the upper side into the new ,cylindrical cell (Geitler 1960).

Ultrastructure:

Taxonomic position, higher hierarchy: Cyanophyceae, Chroococcales, Chamaesiphonaceae Notes to taxonomy, misinterpretations: Two species

Ecology, ecophysiology, ecological significance: Komárek (1992): Both species are known from periphyton; they grow attached to the filamentous algae, submersed plants and detritus particles, in more or less clear, unpolluted small water bodies, pools, backwaters, swamps, C. mirabile mainly in mountain areas of the whole temperate zone, C. minor in the central (Pannonian) basin of the river Danube (Europe).

Physiology and biochemistry:

Distribution, endemism, problematic citations:

Reference strain:

Infrageneric scheme, species concept:

List of species: Cyanophanon minor Geitler 1966 Cyanophanon mirabile Geitler 1955

Keys:

List of stains:

Drawings: Komárek 1992

Application technology:

Literature: 2.1 taxonomy: Geitler 1955, Geitler 1957, Geitler 1960, Friedmann 1964, Skuja 1964, Starmach 1966, Geitler 1966, Bourrelly 1970,                        Kann 1978, Schanz 1983, Komárek & al. 1985, 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: