Sagenista
unranked group of stramenopiles
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.
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.
Bothrosome
They are capable of excreting an extoplasmic net of filaments for cells to glide upon.
This brief starts where responsible research should: with the source description of “Sagenista” as unranked group of stramenopiles. Everything that follows is an evidence route, not borrowed authority.
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Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Jul 12, 2025. The linked authority identifier is Q2368699. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “Sagenista” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.