Basichlamys

Basichlamys
	Basichlamys sacculifera
Scientific classification
Kingdom:	Plantae
Division:	Chlorophyta
Class:	Chlorophyceae
Order:	Chlamydomonadales
Family:	Tetrabaenaceae
Genus:	Basichlamys; Skuja, 1956
Species:	B. sacculifera
Binomial name
	Basichlamys sacculifera; (Scherffel) Skuja
Synonyms
	Gonium sacculiferum Scherff.; Gonium sociale f. sacculiferum;

Basichlamys is a monotypic genus of colonial green algae in the family Tetrabaenaceae.¹ The sole species is Basichlamys sacculifera. It is rare, but cosmopolitan in freshwaters.²

Basichlamys sacculifera consists of four-celled colonies of cells in a square, which are attached by their bases to a parental cellular sheath or sac. The cells are ovoid and asymmetrical, and each have two flagella, two contractile vacuoles, and a cup-shaped chloroplast containing a pyrenoid and a stigma.³ The ultrastructure of the cell wall is similar to those of Tetrabaena and Gonium.⁴ Its overall morphology is most similar to Tetrabaena, but the cells are not connected to each other directly but are instead connected by a common cellular sheath.³

Asexual reproduction occurs by autocolony formation,² or occasionally akinetes or hypnospores (dormant cells).³ Sexual reproduction is isogamous and results in walled aplanozygotes.² The zygote walls are reticulate, a feature that it shares with Tetrabaena.⁴

References

See the NCBI webpage on Basichlamys. Data extracted from the "NCBI taxonomy resources". National Center for Biotechnology Information. Retrieved 2007-03-19.
Guiry, M.D.; Guiry, G.M. "Basichlamys Skuja, 1956". AlgaeBase. University of Galway. Retrieved 2025-03-14.
Nakada, Takashi; Nozaki, Hisayoshi (2014). "Chapter 6. Flagellate Green Algae". In Wehr, John D.; Sheath, Robert G.; Kociolek, J. Patrick (eds.). Freshwater Algae of North America: Ecology and Classification (2 ed.). Elsevier Inc. pp. 265–313. ISBN 978-0-12-385876-4.
Nozaki, H.; Itoh, M.; Watanabe, M.M.; Kuroiwa, T. (1996). "Ultrastructure of the vegetative colonies and systematic position of Basichlamys (Volvocales, Chlorophyta)". European Journal of Phycology. 31 (1): 67–72. Bibcode:1996EJPhy..31...67N. doi:10.1080/09670269600651211a.

External links

Basichlamys - Description with pictures

[1] See the NCBI webpage on Basichlamys. Data extracted from the "NCBI taxonomy resources". National Center for Biotechnology Information. Retrieved 2007-03-19.

[AlgaeBase-2] Guiry, M.D.; Guiry, G.M. "Basichlamys Skuja, 1956". AlgaeBase. University of Galway. Retrieved 2025-03-14.

[Nakada2014-3] Nakada, Takashi; Nozaki, Hisayoshi (2014). "Chapter 6. Flagellate Green Algae". In Wehr, John D.; Sheath, Robert G.; Kociolek, J. Patrick (eds.). Freshwater Algae of North America: Ecology and Classification (2 ed.). Elsevier Inc. pp. 265–313. ISBN 978-0-12-385876-4.

[Nozaki-4] Nozaki, H.; Itoh, M.; Watanabe, M.M.; Kuroiwa, T. (1996). "Ultrastructure of the vegetative colonies and systematic position of Basichlamys (Volvocales, Chlorophyta)". European Journal of Phycology. 31 (1): 67–72. Bibcode:1996EJPhy..31...67N. doi:10.1080/09670269600651211a.

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