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Planktolyngbya

Generic name: PLANKTOLYNGBYA Anagnostidis et Komárek, 1988. Algolog. Stud. 50-53: 394.
Synonyms:
Diagnosis:
Type species: Planktolyngbya limnetica (Lemmermann) Komárková-Legnerová et Cronberg, 1992
Descriptions:
Komárek (1992): Filamentous; filaments solitary, with thin, simple, colourless, but firm sheaths, very exceptionally with false branching; trichomes cylindrical, isopolar, straight, waved, coiled up to more or less screw-like or spirally coiled, narrow, up to 3 μm wide, uniserial, usually not narrowed to the ends, indistinctly constricted or unconstricted at the cross walls, always immotile. Cells cylindrical, rarely shorter than wide, usually longer than wide (up to several times), without aerotopes or with facultative polar aerotopes, some- times with solitary granules; end cells rounded or narrowed-rounded, always without calyptra. Cell content pale grey-blue, blue-green, yellowish or olive-green, thylakoids localized peripherally along the cell walls.
Genotype differences, molecular data:
Reproduction strategies, life cycles, cell division:
Komárek (1992): Cell division by the crosswise binary fission, perpendicularly to the long axis of a trichome, daughter cells grow +/- up to the original size before the next division. All cells capable to divide. Reproduction by fragmentation of trichomes without necridic cells into immotile (?) hormogonia.
Ultrastructure:
Taxonomic position, higher hierarchy:
Cyanophyceae, Oscillatoriales, Pseudanabaenaceae, Pseudanabaenoideae
Notes to taxonomy, misinterpretations:
Ecology, ecophysiology, ecological significance:
Komárek (1992): Planktic species, usually in large, mesotrophic reservoirs; several species are limited only in tropical and warm areas of temperated zones, several species are presumably nordic.
Physiology and biochemistry:
Distribution, endemism, problematic citations:
Reference strain:
Infrageneric scheme, species concept:
List of species:
Planktolyngbya bipunctata (Lemmermann) Anagnostidis et Komárek 1988
Planktolyngbya brevicellularis Cronberg et Komárek 1994
Planktolyngbya capillaris (Hindák) Anagnostidis et Komárek 1988
Planktolyngbya circumcreta (G.S. West) Anagnostidis et Komárek 1988
Planktolyngbya contorta (Lemmermann) Anagnostidis et Komárek 1988
Planktolyngbya crassa Komárková-Legnerová et Cronberg 1992
Planktolyngbya holsatica (Lemmermann) Anagnostidis et Komárek 1988
Planktolyngbya lacustris (Lemmermann) Anagnostidis et Komárek 1988
Planktolyngbya limnetica (Lemmermann) Komárková-Legnerová et Cronberg 1992
Planktolyngbya microspira Komárek et Cronberg 2001
Planktolyngbya minor (Geitler) Komárek et Cronberg 2001
Planktolyngbya nyassae (Schmidle) Anagnostidis et Komárek 1988
Planktolyngbya regularis Komárková-Legnerová et Tavera 1996
Planktolyngbya tallingii  Komárek et Kling  1991
Planktolyngbya undulata Komárek et Kling 1991

Unclear taxa:
Lyngbya arthrospiroides Virieux 1913
Lyngbya circumcreta var. gelatinicola Ghose 1924
Lyngbya holsatica var. contorta Thomas et Gonzalvez 1965
Lyngbya jacutica Kiselev ex Elenkin 1949

Keys:
List of stains:
Drawings:
Komárek 1992
Application technology:
Literature:
  2.1 taxonomy: Hindák 1985, Anagnostidis et Komárek 1988, Komárková-Legnerova & Cronberg 1992, Komárek & Kling 1991, Komárek 1992
  2.2 cytomorphology:
  2.3 16S rRNA sequencing:
  2.4 biology and life cycles:
  2.5 ecology: