Rhopalosolen

Rhopalosolen
Rhopalosolen cylindricus
Scientific classification Edit this classification
Clade: Viridiplantae
Division: Chlorophyta
Class: Trebouxiophyceae
Order: incertae sedis
Family: incertae sedis
Genus: Rhopalosolen
Fott, 1957[1]
Type species
Rhopalosolen cylindricus
(F.D.Lambert) Fott[1]
Species[1]

Rhopalosolen is a genus of green algae in the class Trebouxiophyceae.[1] It is found in freshwater habitats, and is epizoic or epiphytic on various substrates such as rotifers, nematodes, cladocerans, copepods, fungal hyphae, plants, or other algae.[2]

Description

Rhopalosolen consists of singular cells attached to a substrate. The cells are cylindrical or club-shaped, about 80–430 µm long and 10–45 µm wide when mature,[1] somewhat tapered at the base and broadly rounded at the apex. At the base, the cells are attached to the substrate via a mucilaginous pad. Cells contain a single chloroplast lining the inside of the cell; the chloroplast is initially plate-like but may become dissected with age, and divide into multiple pieces during reproduction. Multiple pyrenoids are present. Adult cells are coenocytic, with multiple nuclei.[3] Species are distinguished from each other based on the size and shape of the cells.[1]

Reproduction occurs asexually and sexually. In asexual reproduction, biflagellate zoospores are produced that escape through a tear in the mother cell wall near the apex.[3] Sexual reproduction has been observed in the type species, R. cylindricus, and is anisogamous.[1]

References

  1. ^ a b c d e f g Guiry, M.D.; Guiry, G.M. "Rhopalosolen". AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. Retrieved 2022-02-28.
  2. ^ Ramos, Geraldo José Peixoto; De Mattos Bicudo, Carlos Eduardo; Do Nascimento Moura, Carlos Wallace (2017). "Algae in phytotelmata from Caatinga: First record of the genus Rhopalosolen Fott (Chlorophyta) for Brazil". Check List. 13 (5): 403–410. doi:10.15560/13.5.403.
  3. ^ a b Komárek, J.; Fott, B. (1983). Chlorophyceae (Grünalgen), Ordnung Chlorococcales. Das Phytoplankton des Süßwassers (in German). E. Schweizerbart'sche Verlagsbuchhandlung. p. 1044.


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