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Camptylonemopsis

Generic name: CAMPTYLONEMOPSIS Desikachary 1948. Proc. Indian Acad. Sci., Sect. B. 18: 46.
Synonyms:
Diagnosis:
Type species: Camptylonemopsis lahorensis (Ghose) Desikachary 1948
Descriptions:
Komárek (1992):Filaments heteropolar, rarely straight and erect, usually creeping on the substrate, but distinctly divided into basal end with a heterocyte and the apical end, simple,unbranched, solitary or in small, microscopic groups. Trichomes with basal, more or less spherical or hemispherical heterocytes, occasionally also with intercalar, cylindrical heterocytes; at intercalar heterocytes sometimes division of trichomes and their disintegration; trichomes cylindrical, not attenuated, but sometimes with slightly widened apical parts, constricted at the cross walls. Sheaths always present, firm, thin, colourless, open at the ends. Cells cylindrical or barrel-shaped, sometimes more rounded at the ends, without aerotopes, but sometimes with a granular content, blue-green, yellowish or pale greyish-blue. Akinetes not well known.
Genotype differences, molecular data:
Reproduction strategies, life cycles, cell division:
Komárek (1992): Cell division perpendicularly to the long axis of trichomes (subapical meristematic zones). Trichomes disintegrate into hormogonia in the upper part with the help of necridic cells. Reproduction by hormogonia, which develop by a special manner: in their middle develop one or two heterocytes, which separate two fiillments one from another and change into basal heterocytes.
Ultrastructure:
Taxonomic position, higher
hierarchy: Cyanophyceae, Nostocales, Microchaetaceae,
Microchaetoideae
Notes to taxonomy, misinterpretations:
Ecology, ecophysiology, ecological significance:
Komárek (1992): Epiphytic and epilithic species, growing in submerse, not polluted freshwater biotopes. Majority of species described from tropical countries and known usually only from few localities.
Physiology and biochemistry:
Distribution, endemism, problematic citations:
Reference strain:
Infrageneric scheme, species concept:

List of species:
Camptylonemopsis boldii Dutt, Datta et Gupta 1975
Camptylonemopsis danilovii (Hollerbach) Desikachary 1984
Camptylonemopsis iyengari  Desikachary 1948
Camptylonemopsis lahorensis (Ghose) Desikachary 1948
Camptylonemopsis major C.K. Tseng et Maosen 1983. Chin. J. Oceanol. Limnol 1(3):XX
Camptylonemopsis minor Desikachary 1948
Camptylonemopsis paperai Subrahmanyam 1973
Camptylonemopsis pulneyensis Desikachary 1948
Camptylonemopsis semiaquatica Subrahmanyam 1973
Camptylonemopsis umida (Čado) Komárek 1989

Unclear taxa:
Camptylonemopsis lahorensis sensu Pandey 1965
Tolypothrix arenophila W. et. G.S. West 1897
Tolypothrix arenophila sensu Pandey et Mitra 1959 and Pandey 1965
Tolypothrix campyloneides Ghose 1923
Tolypothrix conglutinata var.  colorata Ghose 1923

Excludenda:
Camptylonemopsis sennae Komárek 2003 = Brasilonema sennae
Camptylonemopsis epibryos Komárek 2003 = Ophiothrix epibryos

Keys:
List of stains:
Drawings:
click to enlargeKomárek
1992
Application technology:
Literature:

  2.1 taxonomy: Desikachary 1948, Desikachary 1959, Komárek 1992
  2.2 cytomorphology:
  2.3 16S rRNA sequencing:
  2.4 biology and life cycles:
  2.5 ecology: