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Sphaerocavum

Generic name: SPHAEROCAVUM
Azevedo et Sant' Anna, 2003. Arch. Hydrobiol./ Algological Studies 109: 81
Synonyms:
Diagnosis:
Azevedo et Sant' Anna(2003): Coloniae microscopicae, natantes, cavae, sphaericae vel rare juvenes irregulares, postea sphaerae cavae aut irregulares, complanatae, prominentiis ornatae vel prominentiis nullis, saepe clathratae, cellulae in strato unico dispositis superficiem coloniae versus; involucrum mucilaginosum inconspicuum, incolor; cellulae sphaericae distantes dispositae; contentus cellularis aerotopis munitus. Cellulae divisio in planis duobus perpendicularibus ad coloniae superficiem. Multiplicatio coloniarum fragmentatione.
Type species: Sphaerocavum brasiliense Azevedo et Sant' Anna 2003
Descriptions:
Azevedo et Sant' Anna(2003): Colonies microscopic, free-floating, in young stages small hollow spheres or irregular, later hollow, spherical, broadly elliptical, cylindrical or irregular in shape, with holes in the colony surface, slightly flattened, sometimes clathrate; mucilaginous envelope narrow, diffluent, inconspicuous, colourless; cells spherical, initially loosely arranged, later more or less densely arranged, always on the colony surface; cell content with aerotopes.
Genotype differences, molecular data:
Reproduction strategies, life cycles, cell division:
Azevedo et Sant' Anna(2003): Cell division on two planes in successive generations.
Ultrastructure:
Taxonomic position, higher hierarchy:

Notes to taxonomy, misinterpretations:
Ecology, ecophysiology, ecological significance:
Azevedo et Sant' Anna(2003): Planktonic in eutrophic water bodies
Physiology and biochemistry:
Distribution, endemism, problematic citations:
Reference strain:
Infrageneric scheme, species concept:
List of species:
Sphaerocavum brasiliense Azevedo et Sant' Anna 2003
Sphaerocacum leloupii (Kufferath 1950) Azevedo et Sant' Anna 2003 [syn. Coelosphaerium leopupii Kufferath 1950 = Pannus leoupii (Kufferath) Hindák 1993]
Sphaerocavum microcystiforme (Hindák 1993) Azevedo et Sant' Anna 2003 [syn. Microcystis sp. sensu Hindák & Moustaka 1988 = Pannus microcystiformis Hindák 1993 = Microcystis microcystiformis (Hindák) Joosten 2006]

Unclear taxa:
Microcystis dimorpha Joosten 2006 [image]

Keys:
List of stains:

Drawings:

Komárek & Hauer orig.

Application technology:
Literature:

  2.1 taxonomy: Azevedo et Sant' Anna 2003, Joosten 2006
  2.2 cytomorphology:
  2.3 16S rRNA sequencing:
  2.4 biology and life cycles:
  2.5 ecology: