Sagenista
| Sagenista | |
|---|---|
| Aplanochytrium, a labyrinthulid | |
| Scientific classification | |
| Domain: | Eukaryota |
| Clade: | Sar |
| Clade: | Stramenopiles |
| Phylum: | Bigyra |
| Subphylum: | Cavalier- Smith, 1995[1] stat. n. 2006 |
| Groups | |
Sagenista is a subphylum of heterokonts containing the labyrinthulids and Eogyrea, a class of yet uncultured protists. Originally, it contained the Labyrinthulids and bicosoecids. The bicosoecids have been removed, and Eogyrea were added, in order to make the group monophyletic.[2][3][4][5]
Some have a special organelle called a bothrosome (or sagenogenetosome). It is usually found in a marine environments rich in algae and sea grass. It is capable of movement by use of this organelle.
They are generally decomposers. They are cultivated for their active production of Omega-3 fatty acids. These acids are used as an approved additive for animal feed.
There is a debate about whether some species of Sagenista contain the photosynthetic pigment chlorophyll C.
- ^ Cavalier-Smith, T. (1995). Membrane heredity, symbiogenesis, and the multiple origins of algae. In: Arai, R., Kato, M., Doi, Y. (eds). Biodiversity and evolution. The National Science Museum Foundation. Tokyo, pp 75-114.
- ^ "Browse taxonomic tree". Catalogue of Life : 2008 Annual Checklist.
- ^ Cavalier-Smith, T.; Chao, Ema E.-Y. (2006). "Phylogeny and megasystematics of phagotrophic heterokonts (kingdom Chromista)". Journal of Molecular Evolution. 62 (4): 388–420. Bibcode:2006JMolE..62..388C. doi:10.1007/s00239-004-0353-8. PMID 16557340. S2CID 29567514.
- ^ Baldauf, Sandra L. (2008). "An overview of the phylogeny and diversity of eukaryotes" (PDF). Journal of Systematics and Evolution. 46 (3): 263–273. doi:10.3724/SP.J.1002.2008.08060 (inactive 12 July 2025). Archived from the original (PDF) on 2016-06-04.
{{cite journal}}: CS1 maint: DOI inactive as of July 2025 (link) - ^ Cavalier-Smith, T.; Scoble, J. M. (2013). "Phylogeny of Heterokonta: Incisomonas marina, a uniciliate gliding opalozoan related to Solenicola (Nanomonadea), and evidence that Actinophryida evolved from raphidophytes". European Journal of Protistology. 49 (3): 328–353. doi:10.1016/j.ejop.2012.09.002. PMID 23219323.