# Tetramyxa

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{{Italic title}}
{{Short description|Genus of parasitic cercozoan}}
{{Automatic taxobox 
| image                  = Tetramyxa parasitica Goebel 1884.webp
| image_caption          = ''T. parasitica'' in ''[Ruppia](/source/Ruppia)'' tubers
| taxon                  = Tetramyxa
| authority              = [K. Goebel](/source/Karl_Ritter_von_Goebel), 1884<ref name="Tetramyxaparasitica"/>
| synonyms               =
* ''Molliardia'' {{au|R. Maire & A. Tison, 1911}}
* ''Thecaphora'' {{au|W. A. Setchell, 1924}}
| subdivision_ranks      = Species
| subdivision            = 
*''[T. elaeagni](/source/Tetramyxa_elaeagni)''
*''[T. marina](/source/Tetramyxa_marina)''
*''[T. parasitica](/source/Tetramyxa_parasitica)''
*''[T. rhizophaga](/source/Tetramyxa_rhizophaga)''
*''[T. triglochinis](/source/Tetramyxa_triglochinis)''
| type_species           = ''[Tetramyxa parasitica](/source/Tetramyxa_parasitica)''
| type_species_authority = [K. Goebel](/source/Karl_Ritter_von_Goebel), 1884<ref name="Tetramyxaparasitica"/>
}}

'''''Tetramyxa''''' is a [cercozoan](/source/cercozoan) [protist](/source/protist), member of the [plasmodiophore](/source/plasmodiophore)s, [parasite](/source/parasite) of several [flowering plant](/source/flowering_plant)s.<ref name="StraminipilousFungi"/> It was first described by [Karl von Goebel](/source/Karl_Ritter_von_Goebel) in 1884, in his work ''Flora''.<ref name="Tetramyxaparasitica"/> The genus is characterized by the appearance of resting spores (or cysts) in groups of four.<ref name="Tetramyxaparasiticaultra"/>

==Taxonomy==
There are two accepted species:<ref name="StraminipilousFungi"/><ref name="WoRMS172135"/>
*''[Tetramyxa parasitica](/source/Tetramyxa_parasitica)'' {{au|K. Goebel, 1884}} (=''Thecaphora ruppiae'' {{au|W. A. Setchell, 1924}}) – parasite of ''[Zannichellia](/source/Zannichellia)'', ''[Potamogeton](/source/Potamogeton)'' and ''[Ruppia](/source/Ruppia)'' roots.
*''[Tetramyxa marina](/source/Tetramyxa_marina)'' {{au|Y. Lipkin & A. Avidor, 1974}} – parasite of ''[Halophila stipulacea](/source/Halophila_stipulacea)'' petioles.
The following additional species, though recognized as ''Tetramyxa'', are listed as doubtful in some sources:<ref name="StraminipilousFungi"/>
*''[Tetramyxa rhizophaga](/source/Tetramyxa_rhizophaga)'' {{au|D. Lihnell, 1942}} – parasite of ''[Juniperus communis](/source/Juniperus_communis)'' roots.
*''[Tetramyxa triglochinis](/source/Tetramyxa_triglochinis)'' {{au|M. Molliard, 1909}} (=''Molliardia triglochinis'' {{au|(M. Molliard) R. Maire & A. Tison, 1911}}) – parasite of ''[Triglochin maritimum](/source/Triglochin_maritimum)'' stems, ovaries and stamens.
*''[Tetramyxa elaeagni](/source/Tetramyxa_elaeagni)'' {{au|Y. Yendo & K. Takase, 1932}} – parasite of ''[Elaeagnus multiflora](/source/Elaeagnus_multiflora)'' roots.

==References==
{{Reflist|refs=

<ref name="WoRMS172135">{{Cite WoRMS|id=172135|title=Tetramyxa|date=1884|author=K.I. Goebel}}</ref>

<ref name="StraminipilousFungi">{{cite book|title=Straminipilous Fungi: Systematics of the Peronosporomycetes Including Accounts of the Marine Straminipilous Protists, the Plasmodiophorids and Similar Organisms|date=2001|doi=10.1007/978-94-015-9733-3|publisher=Springer Dordrecht|isbn=978-94-015-9733-3|edition=1|first1=Michael W. |last1=Dick|s2cid=28755980 }}</ref>

<ref name="Tetramyxaparasitica">{{cite book|url=https://www.zobodat.at/pdf/Flora_67_0517-0521.pdf|title=Flora oder Allgemeine Botanische Zeitung|trans-title=Flora or General Botanical Newspaper|language=German|volume=67|page=517|date=1884|publisher=Regensburgische Botanische Gesellschaft von 1790 e.V.|access-date=2022-10-21|archive-date=2022-10-21|archive-url=https://web.archive.org/web/20221021195339/https://www.zobodat.at/pdf/Flora_67_0517-0521.pdf|url-status=live}}</ref>

<ref name="Tetramyxaparasiticaultra">{{cite journal|vauthors=Braselton JP|title=Ultrastructure and karyology of Tetramyxa parasitica (Plasmodiophoromycetes)|journal=Canadian Journal of Botany|date=1 March 1990|volume=68|issue=3|pages=594–598|doi=10.1139/b90-078}}</ref>

}}

{{Taxonbar|from=Q49606242}}

Category:Parasitic Rhizaria
Category:Parasites of plants
Category:Rhizaria genera

{{Cercozoa-stub}}

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Adapted from the Wikipedia article [Tetramyxa](https://en.wikipedia.org/wiki/Tetramyxa) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Tetramyxa?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.