Pyrenomonas

Pyrenomonas is a genus of cryptomonad. It is a red alga with a bilobed chloroplast and a central pyrenoid, which has an invagination that houses a nucleomorph . Pyrenomonas salina, the type species, was characterized in 1984 but has since been renamed to Rhodomonas salina. According to AlgaeBase, Pyrenomonas would only encompass two recognized species: Pyrenomonas helgolandii U.Santore and Pyrenomonas ovalis P.Kugrens, B.L.Clay & R.E.Lee, 1999 . The following species are considered synonyms of the accepted names: Pyrenomonas abbreviata (Butcher) Santore, 1986. Synonym of: Rhodomonas abbreviata (Butcher) D.R.A.Hill & Wetherbee . Pyrenomonas heteromorpha Santore, 1986. Synonym of: Rhodomonas heteromorpha Butcher ex D.R.A.Hill & R.Wetherbee . Pyrenomonas maculata Santore, 1986. Synonym of: Rhodomonas maculata D.R.A.Hill & Wetherbee . Pyrenomonas reticulata (I.A.N.Lucas) U.J.Santore, 1986. Synonym of: Rhinomonas reticulata (I.A.N.Lucas) G.Novarino . Pyrenomonas salina (Wisłouch) Santore, 1984. Synonym of: Rhodomonas salina (Wisłouch) D.R.A.Hill & R.Wetherbee .

Genus of single-celled organisms

Pyrenomonas
Pyrenomonas ovalis. Cell anatomy representation, showing ventral view, palmelloid colony, external appearance (periplast) and transversal section.
Scientific classification
Domain:	Eukaryota
Clade:	Pancryptista
Phylum:	Cryptista
Superclass:	Cryptomonada
Class:	Cryptophyceae
Order:	Pyrenomonadales
Family:	Pyrenomonadaceae
Genus:	Pyrenomonas Santore, 1984
Type species
Pyrenomonas salina (Wislouch, 1924) Santore, 1984
Species[3]
P. helgolandii U.Santore[1][2][3] P. ovalis P.Kugrens, B.L.Clay & R.E.Lee P. salina (Wislouch 1924) Santore 1984

Pyrenomonas is a genus of cryptomonad.^[4] It is a red alga with a bilobed chloroplast and a central pyrenoid, which has an invagination that houses a nucleomorph ^[5].

Pyrenomonas salina, the type species, was characterized in 1984^[6] but has since been renamed to Rhodomonas salina.^[7] According to AlgaeBase, Pyrenomonas would only encompass two recognized species: Pyrenomonas helgolandii U.Santore and Pyrenomonas ovalis P.Kugrens, B.L.Clay & R.E.Lee, 1999 ^[8]. The following species are considered synonyms of the accepted names:

• Pyrenomonas abbreviata (Butcher) Santore, 1986. Synonym of: Rhodomonas abbreviata (Butcher) D.R.A.Hill & Wetherbee ^[9].
• Pyrenomonas heteromorpha Santore, 1986. Synonym of: Rhodomonas heteromorpha Butcher ex D.R.A.Hill & R.Wetherbee ^[10].
• Pyrenomonas maculata Santore, 1986. Synonym of: Rhodomonas maculata D.R.A.Hill & Wetherbee ^[11].
• Pyrenomonas reticulata (I.A.N.Lucas) U.J.Santore, 1986. Synonym of: Rhinomonas reticulata (I.A.N.Lucas) G.Novarino ^[12].
• Pyrenomonas salina (Wisłouch) Santore, 1984. Synonym of: Rhodomonas salina (Wisłouch) D.R.A.Hill & R.Wetherbee ^[13].

References

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1. ^ Tanifuji G, Erata M, Ishida K, Onodera N, Hara Y (May 2006). "Diversity of secondary endosymbiont-derived actin-coding genes in cryptomonads and their evolutionary implications". J. Plant Res. 119 (3): 205–15. doi:10.1007/s10265-006-0263-5. ISSN 0918-9440. PMID 16570126. S2CID 23698915.
2. ^ Stibitz TB, Keeling PJ, Bhattacharya D (November 2000). "Symbiotic origin of a novel actin gene in the cryptophyte Pyrenomonas helgolandii". Mol. Biol. Evol. 17 (11): 1731–8. doi:10.1093/oxfordjournals.molbev.a026271. PMID 11070060.
3. ^ ^{a b} M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2018. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org/search/genus/detail/?genus_id=Wa588aef130f3126c ; searched on 12 August 2018
4. ^ Guiry, M.D. & Guiry, G.M. (2018). AlgaeBase. World-wide electronic publication, National University of Ireland, Galway (taxonomic information republished from AlgaeBase with permission of M.D. Guiry). Pyrenomonas Santore, 1984. Accessed through: World Register of Marine Species at: http://marinespecies.org/aphia.php?p=taxdetails&id=106288 on 2018-08-12
5. ^ "Cryptomonads", Freshwater Algae of North America, Academic Press, pp. 809–850, 2015-01-01, doi:10.1016/B978-0-12-385876-4.00018-9, retrieved 2026-01-15
6. ^ Santore UJ (1984). "Some aspects of taxonomy in the Cryptophyceae". New Phytol. 98 (4): 627–46. doi:10.1111/j.1469-8137.1984.tb04153.x.
7. ^ Hauth, A. M.; Maier, U. G.; Lang, B. F.; Burger, G. (2005). "The Rhodomonas salina mitochondrial genome: bacteria-like operons, compact gene arrangement and complex repeat region". Nucleic Acids Research. 33 (14): 4433–4442. doi:10.1093/nar/gki757. PMC 1183108. PMID 16085754.
8. ^ "Pyrenomonas Santore, 1984 :: AlgaeBase". www.algaebase.org. Archived from the original on 2025-01-23. Retrieved 2026-01-15.
9. ^ "Pyrenomonas abbreviata (Butcher) U.J.Santore :: AlgaeBase". www.algaebase.org. Archived from the original on 2025-05-02. Retrieved 2026-01-15.
10. ^ Algae Base. "Pyrenomonas heteromorpha Santore, nom. inval. 1986".
11. ^ "Pyrenomonas maculata U.J.Santore :: AlgaeBase". www.algaebase.org. Archived from the original on 2024-04-19. Retrieved 2026-01-15.
12. ^ "Algaebase :: Listing the World's Algae". www.algaebase.org. Archived from the original on 2021-12-04. Retrieved 2026-01-15.
13. ^ "Pyrenomonas salina (S.M.Wislouch) U.J.Santore :: Algaebase". www.algaebase.org. Archived from the original on 2012-03-30. Retrieved 2026-01-15.

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