Biology:Prasiolaceae

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Prasiolaceae is a family of green algae in the order Prasiolales.[1] Members of this family are found in freshwater, terrestrial, and marine habitats.[2]

Algae in the family Prasiolaceae consist of thalli with blades a single cell thick (i.e. monostromatic). Vegetative cells are polygonal with two to four cells arranged within a parent cell wall. Each cell has a single, stellate chloroplast and a central pyrenoid.[3]

Traditionally, it was the only family in the order Prasiolales.[4] However, molecular phylogenetics have shown that additional algae with simple morphologies, such as Stichococcus, also belong to the same clade as this family.[5]

Phylogeny

Molecular phylogenetic studies suggest the following relationships:[6]

Prasiola + Prasiococcus

Rosenvingiella

Rosenvingiellopsis

Prasionema

Prasionella

Prasiolopsis

Another, older study places Prasionella as sister to Rosenvingiella.[4] The above cladogram excludes the genus Schizogonium, which is taxonomically problematic and likely a synonym of Rosenvingiella.[7]

References

  1. See the NCBI webpage on Prasiolaceae. Data extracted from the "NCBI taxonomy resources". National Center for Biotechnology Information. https://ftp.ncbi.nih.gov/pub/taxonomy/. 
  2. Ricker, R.W. (1987). Taxonomy and biogeography of Macquarie Island seaweeds. London: British Museum (Natural History). pp. 1–344. ISBN 0-565-00998-2. 
  3. Luan, R.; Huang, B.; Ding, L; Luan, S. (2009). "Two new species of family Prasiolaceae (Prasiolales, Chlorophyta) from China Sea". Acta Oceanologica Sinica 28 (6): 118–122. 
  4. 4.0 4.1 Heesch, Svenja; Pažoutová, Marie; Moniz, Mónica B.J.; Rindi, Fabio (2016). "Prasiolales (Trebouxiophyceae, Chlorophyta) of the Svalbard Archipelago: Diversity, biogeography and description of the new genera Prasionella and Prasionema". European Journal of Phycology 51 (2): 171–187. doi:10.1080/09670262.2015.1115557. Bibcode2016EJPhy..51..171H. 
  5. Darienko, Tatyana; Pröschold, Thomas (2024). "Prasiolopsis wulf-kochii (Prasiolales, Trebouxiophyceae), a New Species Occurring in Hairs of the Sloth Bradypus tridactylus". Plants 13 (17): 2405. doi:10.3390/plants13172405. PMID 39273889. Bibcode2024Plnts..13.2405D. 
  6. Nelson, Wendy A.; Sutherland, Judy E. (2018-04-03). "Prasionema heeschiae sp. nov. (Prasiolales, Chlorophyta) from Campbell Island, New Zealand: first record of Prasionema in the southern hemisphere" (in en). European Journal of Phycology 53 (2): 198–207. doi:10.1080/09670262.2018.1423577. ISSN 0967-0262. Bibcode2018EJPhy..53..198N. https://www.tandfonline.com/doi/full/10.1080/09670262.2018.1423577. 
  7. Rindi, Fabio; McIvor, Lynne; Sherwood, Alison R.; Friedl, Thomas; Guiry, Michael D.; Sheath, Robert G. (2007). "Molecular phylogeny of the green algal order Prasiolales (Trebouxiophyceae, Chlorophyta)". Journal of Phycology 43 (4): 811–822. doi:10.1111/j.1529-8817.2007.00372.x. Bibcode2007JPcgy..43..811R. 

Wikidata ☰ Q7238537 entry