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Chaetopeltis

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Chaetopeltis
Chaetopeltis orbicularis
Scientific classification Edit this classification
Clade: Viridiplantae
Division: Chlorophyta
Class: Chlorophyceae
Order: Chaetopeltidales
Family: Chaetopeltidaceae
Genus: Chaetopeltis
Berthold
Species:
C. orbicularis
Binomial name
Chaetopeltis orbicularis
Berthold[1]

Chaetopeltis is a genus of green algae in the order Chaetopeltidales,[2] containing a single species, Chaetopeltis orbicularis.[3] It is an epiphyte on aquatic plants and filamentous algae. It is a freshwater organism,[4] preferring flowing water;[3] it is generally common but often overlooked.[5]

Chaetopeltis is unicellular when young but later grows into a flattened, disc-shaped colony of cells up to 1 mm in diameter and one cell thick. The cells are 15–20 μm wide and 15–30 μm long, with rounded or angular by mutual compression; cells may have one or two long pseudocilia attached, oriented perpendicularly to the disc. The chloroplast is parietal and contains a pyrenoid. Cells contain [4]

Asexual reproduction occurs by the formation of two to eight zoospores, which are quadriflagellate; sexual reproduction has also been observed and it is isogamous.[4]

Chaetopeltis is usually similar in morphology to Coleochaete, but that genus lacks contractile vacuoles and has basally sheathed setae.[4] It is variable in morphology, and single-celled individuals have been described under different names, namely Oligochaetophora and Polychaetophora.[5]

References

[edit]
  1. ^ Guiry, M.D.; Guiry, G.M. "Chaetopeltis". AlgaeBase. University of Galway. Retrieved 2025-02-19.
  2. ^ See the NCBI webpage on Chaetopeltis. Data extracted from the "NCBI taxonomy resources". National Center for Biotechnology Information. Retrieved 2007-03-19.
  3. ^ a b Bicudo, Carlos E. M.; Menezes, Mariângela (2006). Gêneros de Algas de Águas Continentais do Brasil: chave para identificação e descrições (2 ed.). RiMa Editora. p. 508. ISBN 857656064X.
  4. ^ a b c d D. M. John; Brian A. Whitton; Alan J. Brook, eds. (2002). The freshwater algal flora of the British Isles: an identification guide to freshwater and terrestrial algae. Cambridge University Press. ISBN 978-0-521-77051-4.
  5. ^ a b Wujek, Daniel E.; Thompson, Rufus H. (1999). "The Algal Genera Chaetopeltis, Oligochaetophora, and Polychaetophora (Chaetopeltidales, Chlorophyta)". Transactions of the Kansas Academy of Science. 102 (1/2): 40–46. doi:10.2307/3628214. JSTOR 3628214.