Polytomella
| Polytomella | |
|---|---|
| |
| Polytomella agilis | |
Scientific classification
| |
| (unranked): | Viridiplantae |
| Division: | Chlorophyta |
| Class: | Chlorophyceae |
| Order: | Chlamydomonadales |
| Family: | Dunaliellaceae |
| Genus: | Polytomella Aragão |
| Species | |
Polytomellais agenusofgreen algaein the familyDunaliellaceae.[1]Polytomellais a free-living, flagellated, nonphotosynthetic green alga with a highly reduced, linear fragmented mitochondrial genome.[2][3]Polytomella,as it exists today, bears evidence of once having a functional photosynthetic plastid which has over evolutionary time changed such that it would appear now to have no genome or gene expressing mechanisms remaining to it.[4]Having transitioned completely to heterotrophy,Polytomellauses organic acids, alcohols and monosaccharides as its carbon source.[3][5][6]Despite being an evolutionary descendant of the green algae, Polytomella is a colourless organism because it has lost its photosynthetic ability.[6]
References
[edit]- ^Guiry, M.D.; Guiry, G.M."Polytomella".AlgaeBase.World-wide electronic publication, National University of Ireland, Galway.
- ^Smith, DR; Lee, RW (2011). "Nucleotide diversity of the colorless green alga Polytomella parva (Chlorophyceae, Chlorophyta): high for the mitochondrial telomeres, surprisingly low everywhere else".The Journal of Eukaryotic Microbiology.58(5): 471–3.doi:10.1111/j.1550-7408.2011.00569.x.PMID21762422.
- ^abInwood, W; Yoshihara, C; Zalpuri, R; Kim, KS; Kustu, S (November 2008)."The ultrastructure of a Chlamydomonas reinhardtii mutant strain lacking phytoene synthase resembles that of a colorless alga".Molecular Plant.1(6): 925–37.doi:10.1093/mp/ssn046.PMC2902904.PMID19825593.
- ^"Plant Phys".m.plantphysiol.org.Retrieved2015-09-28.
- ^Links, J.; Verloop, A.; Havinga, E. (December 1961). "Some growth experiments withPolytoma uvella on synthetic media".Antonie van Leeuwenhoek.27(1): 76–80.doi:10.1007/BF02538425.
- ^abCruz, Vidal; Gittleson, Stephen (1981)."The genus Polytomella: A review of classification, morphology, life cycle, metabolism, and motility".Archiv für Protistenkunde.124(1–2): 1–28.doi:10.1016/s0003-9365(81)80001-2.Retrieved25 September2015.
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