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DIVISION
Charophyta
CLASS
Klebsormidiophyceae
ORDER
Klebsormidiales
FAMILY
Elakatotrichaceae
GENUS
Elakatothrix
SPECIES
Elakatothrix genevensis, (Reverdin) Hindak, 1962
IMAGES
Synonyms
  • Ankistrodesmus genevensis: Reverdin (1919)
Morphological Characteristics

Cells solitary or in pairs, rare bigger groups, embedded in broad gelatinous matrix. Cells fusiform, with pointed apices, surrounded by mucilaginous, seldomly-layered sheath of different width. The chloroplast is single and parietal, laminate, cup- or girdle-shaped, straight or spiral, usually with one or two pyrenoids. Asexual reproduction known only by aplanospores. Multiplication of cells by vegetative cell division. Sexual reproduction unknown. Elakatothrix widely distributed planktonic algae in freshwater; juveniles may be epiphytic.

 

Morphological Data
Distinctive morphometric characters
  • Cell Length: from 20 to 35 µm
  • Cell Width: from 3 to 5 µm
Distribution
Widely distributed in freshwaters, while occurring sporadically.
 
Distribution:  as Elakatothrix genevensis (Reverdin) Hindák
Europe: Germany (Täuscher 2014), Portugal (Cambra Sánchez, Álvarez Cobelas & Aboal Sanjurjo 1998), Romania (Caraus 2012), Spain (Pérez, Maidana & Comas 2009).

 

Notes

Toxicity:

Not reported.

Resistence Stages:

Not reported.

References

Algae of Romania. A distributional checklist of actual algae. Version 2.3 third revision., Bacau: Univ. Bacau., Caraus I., 2012,

Lista florística y bibliográfica de los clorófitos (Chlorophyta) de la Península Ibérica, Islas Baleares e Islas Canarias., Burgos: Asociación Española de Limnología., Cambra Sánchez J., Álvarez Cobelas M. & Aboal Sanjurjo M., 1998, 1-614

Växtplanktonflora, Naturvårdsverket, Solna, Sweden, Tikkanen T., Willen T., 1992,

Checklist of Baltic Sea Phytoplankton Species. Baltic Sea Environment Proceedings No. 95, Helsinki Commission Baltic Marine Environment Protection Commission, Hällfors G., 2004,

Biovolumes and size-classes of phytoplankton in the Baltic Sea, HELCOM Balt.Sea Environ. Proc. No. 106, Olenina I., Hajdu S., Edler L., Andersson A., Wasmund N., Busch S., Göbel J., Gromisz S., Huseby S., Huttunen M., Jaanus A., Kokkonen P., Ledaine I. and Niemkiewicz E., 2006, 1-144

Phytoplancton composition of the Ebro River estuary, Spain., Acta Botanica Croatica 68:, Pérez M.C., Maidana N.I., Comas A., 2009, 11-27

SHAPE
Shape Type
complex
Shape Unit
Cell
Cod:
17 - Cylinder + 2 Cones
Surface Area
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Volume
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