Prasiolaceae

{{Short description|Family of algae}} {{Automatic taxobox | image = Prasiola stipitata Suhr (AM AK307212-1).jpg | image_alt = | image_caption = ''Prasiola stipitata'' | taxon = Prasiolaceae | authority = F.F.Blackman & A.G.Tansley | subdivision_ranks = Genera | subdivision_ref = <ref name=AlgaeBase>{{AlgaeBase taxon|title=Prasiolaceae|id= 5204|access-date=2024-12-26}}</ref> | subdivision = * ''Prasiococcus'' * ''Prasiola'' * ''Prasiolopsis'' * ''Prasionella'' * ''Prasionema'' * ''Rosenvingiella'' * ''Rosenvingiellopsis'' * ''Schizogonium'' }}

'''Prasiolaceae''' is a family of green algae in the order Prasiolales.<ref>See the NCBI [https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&id=135266 webpage on Prasiolaceae]. Data extracted from the {{cite web | url=https://ftp.ncbi.nih.gov/pub/taxonomy/ | title=NCBI taxonomy resources | publisher=National Center for Biotechnology Information | access-date=2007-03-19}}</ref> Members of this family are found in freshwater, terrestrial, and marine habitats.<ref>{{cite book|title= Taxonomy and biogeography of Macquarie Island seaweeds|last1= Ricker|first1=R.W.|date= 1987|pages= 1–344|publisher= British Museum (Natural History)|location=London|isbn= 0-565-00998-2}}</ref>

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.<ref>{{cite journal|title=Two new species of family Prasiolaceae (Prasiolales, Chlorophyta) from China Sea|last1= Luan|first1=R.|last2=Huang|first2=B.|last3=Ding|first3=L|last4=Luan|first4=S.|date=2009|journal= Acta Oceanologica Sinica|volume=28|issue=6|pages=118–122}}</ref>

Traditionally, it was the only family in the order Prasiolales.<ref name=Heesch/> However, molecular phylogenetics have shown that additional algae with simple morphologies, such as ''Stichococcus'', also belong to the same clade as this family.<ref>{{cite journal|doi=10.3390/plants13172405|doi-access=free |title=Prasiolopsis wulf-kochii (Prasiolales, Trebouxiophyceae), a New Species Occurring in Hairs of the Sloth Bradypus tridactylus |date=2024 |last1=Darienko |first1=Tatyana |last2=Pröschold |first2=Thomas |journal=Plants |volume=13 |issue=17 |page=2405 |pmid=39273889 |pmc=11397384 |bibcode=2024Plnts..13.2405D }}</ref>

== Phylogeny == Molecular phylogenetic studies suggest the following relationships:<ref>{{Cite journal |last1=Nelson |first1=Wendy A. |last2=Sutherland |first2=Judy E. |date=2018-04-03 |title=Prasionema heeschiae sp. nov. (Prasiolales, Chlorophyta) from Campbell Island, New Zealand: first record of Prasionema in the southern hemisphere |url=https://www.tandfonline.com/doi/full/10.1080/09670262.2018.1423577 |journal=European Journal of Phycology |language=en |volume=53 |issue=2 |pages=198–207 |doi=10.1080/09670262.2018.1423577 |bibcode=2018EJPhy..53..198N |s2cid=90343215 |issn=0967-0262|url-access=subscription }}</ref>

{{clade|1= {{clade |1={{clade |1={{clade |1=''Prasiola'' + ''Prasiococcus'' |2={{clade |1=''Rosenvingiella'' |2=''Rosenvingiellopsis'' }} }} |2={{clade |1=''Prasionema'' |2=''Prasionella'' }} }} |2=''Prasiolopsis'' }} }}

Another, older study places ''Prasionella'' as sister to ''Rosenvingiella''.<ref name=Heesch>{{cite journal|doi=10.1080/09670262.2015.1115557 |title=Prasiolales (Trebouxiophyceae, Chlorophyta) of the Svalbard Archipelago: Diversity, biogeography and description of the new genera ''Prasionella'' and ''Prasionema'' |date=2016 |last1=Heesch |first1=Svenja |last2=Pažoutová |first2=Marie |last3=Moniz |first3=Mónica B.J. |last4=Rindi |first4=Fabio |journal=European Journal of Phycology |volume=51 |issue=2 |pages=171–187 |bibcode=2016EJPhy..51..171H }}</ref> The above cladogram excludes the genus ''Schizogonium'', which is taxonomically problematic and likely a synonym of ''Rosenvingiella''.<ref>{{cite journal|doi=10.1111/j.1529-8817.2007.00372.x |title=Molecular phylogeny of the green algal order Prasiolales (Trebouxiophyceae, Chlorophyta) |date=2007 |last1=Rindi |first1=Fabio |last2=McIvor |first2=Lynne |last3=Sherwood |first3=Alison R. |last4=Friedl |first4=Thomas |last5=Guiry |first5=Michael D. |last6=Sheath |first6=Robert G. |journal=Journal of Phycology |volume=43 |issue=4 |pages=811–822 |bibcode=2007JPcgy..43..811R }}</ref>

==References== {{Reflist|1}}

Category:Trebouxiophyceae families Category:Prasiolales