Pseudomuriella

Pseudomuriella is a genus of green algae, specifically of the class Chlorophyceae. It is the sole genus of the family Pseudomuriellaceae.[1] It is a terrestrial alga that inhabits soils.[4]

Pseudomuriella
Scientific classification Edit this classification
(unranked): Viridiplantae
Division: Chlorophyta
Class: Chlorophyceae
Order: Sphaeropleales
Family: Pseudomuriellaceae
Fučíková, P.O.Lewis & L.A.Lewis
Genus: Pseudomuriella
N.Hanagata, 1998[1][2]
Species
  • P. aurantiaca (W.Vischer) N.Hanagata, 1998[2]
  • P. cubensis K.Fuciková, J.C.Rada, A.Lukesová & L.A.Lewis, 2011
  • P. engadinensis (Kol & Chodat) Fuciková, Rada & L.A.Lewis, 2011[3]
  • P. schumacherensis Fuciková, Rada & L.A.Lewis, 2011[3]
  • P. sp. Itas 9/21 14-1d

Description

Pseudomuriella consists of solitary, spheroidal cells surrounded by a smooth cell wall. Young cells have a single nucleus, but mature cells have nuclei (i.e. are multinucleate). Each cell has multiple chloroplasts lining the outer wall of the cell; each chloroplast is saucer-shaped when young and divided into multiple segments when older. Chloroplasts lack pyrenoids.[3] Cells may have secondary carotenoids present, giving the cells an orange color especially when old.[3] Pseudomuriella reproduces asexually, mainly by autospores,[3] but sometimes by aplanospores or biflagellated zoospores as well.[4]

Morphologically, the genus is essentially indistinguishable from Bracteacoccus and Chromochloris, although Pseudomuriella seems to reproduce mostly by autospores.[3] Molecular data is necessary for a reliable identification.[5]

References
  1. Guiry, M.D.; Guiry, G.M. "Pseudomuriella". AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. Retrieved 2022-02-22.
  2. Hanagata, Nobutaka (1998). "Phylogeny of the subfamily Scotiellocystoideae (Chlorophyceae, Chlorophyta) and related taxa inferred from 18S ribosomal RNA gene sequence data". Journal of Phycology. 34 (6): 1049–1054. doi:10.1046/j.1529-8817.1998.341049.x.
  3. Fučíková, Karolina; Rada, Jared C.; Lewis, Louise A. (2011). "The tangled taxonomic history of Dictyococcus, Bracteacoccus and Pseudomuriella (Chlorophyceae, Chlorophyta) and their distinction based on a phylogenetic perspective". Phycologia. 50 (4): 422–429. doi:10.2216/10-69.1.
  4. Fučíková, Karolina; Lewis, Paul O.; Lewis, Louise A. (2014). "Putting incertae sedis taxa in their place: A proposal for ten new families and three new genera in Sphaeropleales (Chlorophyceae, Chlorophyta)". Journal of Phycology. 50 (1): 14–25. doi:10.1111/jpy.12118. PMID 26988005. S2CID 24770288.
  5. Fučíková, Karolina; Lewis, Louise A. (2012). "Intersection of Chlorella, Muriella and Bracteacoccus: Resurrecting the genus Chromochloris Kol et Chodat (Chlorophyceae, Chlorophyta)". Fottea. 12: 83–93. doi:10.5507/fot.2012.007.

Scientific references

Scientific databases


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