Cyanokybus J.Schiller, 1956
Holotype species: Cyanokybus venezuelae Schiller
Original publication and holotype designation: Schiller, J. (1956). Die Mikroflora der Roten Tümpel auf den koralleninseln Los Aves in karibischen Meer. In: Ergebnisse der deutschen limnologischen Venezuela-Expedition 1952. Bd 1. (Gessner, F. & Vareschi, V. Eds) Vol. 1, pp. 197-216. Berlin: Deutscher Verlag der Wissenschaften.
Request PDFDescription: Unicellular-colonial; colonies microscopic ( to 150 _m long), sometimes composed of subcolonies, irregularly oval, free-living, with distinct, smooth or slightly diffluent, wide, colorless, mucilaginous envelopes; cells arranged in rows containing (2)3 to 9 or more cells in one row, forming later usually double rows in one colony, or to 4 parallel rows; cells sometimes enveloped by their own mucilaginous envelopes (results in slightly lamellated common mucilage); between cells are remarkable spaces. Cells irregular, at the end of a row more or less rounded at the outer side, inner cells rounded cubic, more or less isodiametric, slightly flattened from sides; cells with blue-green, Å homogeneous content or with solitary granules, without aerotopes. Arrangement of cells in rows is the most characteristic feature of this genus within the family.
Ability of cell division in 3 or more planes, perpendicular to each other, but the repeated division perpendicular to one axis of a row prevails in later generations; cells grow into the original size after division and before the next binary fission, but not into the original shape. Reproduction by colony dissociation. The type and single species, C. venezuelae, grows in metaphyton of periodical pools (saline/freshwater?) in old coastal coral areas, overgrown by vegetation, near tropical seas. Until now, known only from the Caribbean (Venezuela, Cuba).
Information contributed by: J. Komárek. The most recent alteration to this page was made on 2015-03-05 by M.D. Guiry.
Taxonomic status: This name is of an entity that is currently accepted taxonomically.
Most recent taxonomic treatment adopted: Komárek, J., Kaštovský, J., Mares, J. & Johansen, J.R. (2014). Taxonomic classification of cyanoprokaryotes (cyanobacterial genera) 2014, using a polyphasic approach. Preslia 86: 295-335.
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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera,
organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA)
and intended to be published in CD format.
These AlgaeBase descriptions are now being continually updated, and each current contributor is identified above.
The PSA and AlgaeBase warmly acknowledge the generosity of all past and present contributors and particularly the work of Dr Parker.
Descriptions of chrysophyte genera were subsequently published in J. Kristiansen & H.R. Preisig (eds.). 2001. Encyclopedia of Chrysophyte Genera. Bibliotheca Phycologica 110: 1-260.
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Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 05 March 2015. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 19 April 2024
