# Dictyocha

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{{Short description|Genus of unicellular algae}}
{{Automatic taxobox
| taxon = Dictyocha
| authority = Ehrenberg, 1837
| image = Dictyocha_speculum.jpg
| image_caption = ''[D. speculum](/source/Dictyocha_speculum)''
| subdivision_ranks = Species
| subdivision =
* ''[D. speculum](/source/Dictyocha_speculum)''
* ''[D. fibula](/source/Dictyocha_fibula)''
* ''[D. octonaria](/source/Dictyocha_octonaria)''
| type_species = Dictyocha speculum
| type_species_authority = Ehrenberg, 1837
| synonyms =
* ''Hannaites'' {{au|Mandra, 1969}}
* ''Akbuluta'' {{au|Özdikmen, 2009}}<ref name="Substitute names for Protozoa"/><ref name="Nakada 2010"/>
}}

'''''Dictyocha''''' is a genus of [silicoflagellate](/source/silicoflagellate)s, [marine](/source/marine_life) [photosynthetic](/source/photosynthetic) unicellular [protist](/source/protist)s that take the form of either [flagellate](/source/flagellate)s or [axopodia](/source/axopodia)l [amoebae](/source/amoebae). Described by [Ehrenberg](/source/Christian_Gottfried_Ehrenberg) in 1837, ''Dictyocha'' contains many important species of the marine [phytoplankton](/source/phytoplankton), some of them responsible for [algal bloom](/source/algal_bloom)s that are toxic to [fish](/source/fish).<ref name="IGP Silicoflagellata"/> 

== Systematics ==

The [genus](/source/genus) ''Dictyocha'' was described in 1837 by [Ehrenberg](/source/Christian_Gottfried_Ehrenberg) from [Algeria](/source/Algeria)n [fossil](/source/fossil) material, and its taxonomy has been based exclusively on the morphology of their [siliceous](/source/siliceous) skeletons.<ref name="Chang 2015"/> ''Dictyocha'' was regarded as the sole genus of the entire family [Dictyochaceae](/source/Dictyochaceae) and order [Dictyochales](/source/Dictyochales) (known as silicoflagellates ''[sensu stricto](/source/sensu_stricto)'')<ref name="IGP Silicoflagellata"/> until 2012, when a second genus ''[Vicicitus](/source/Vicicitus)'' was described.<ref name="Vicicitus"/> There are currently four accepted species of ''Dictyocha'':<ref name="Chang 2015"/>

* ''[Dictyocha speculum](/source/Dictyocha_speculum)'' {{au|Ehrenberg, 1837}}

* ''[Dictyocha fibula](/source/Dictyocha_fibula)'' {{au|Ehrenberg, 1837}}

* ''[Dictyocha octonaria](/source/Dictyocha_octonaria)'' {{au|Ehrenberg, 1837}}

* ''[Dictyocha californica](/source/Dictyocha_californica)'' {{au|Schrader & Murray, 1983}}<ref name="Hernández-Becerril 2001"/>

== References ==
<references>

<ref name="IGP Silicoflagellata">{{cite book | chapter = Class Silicoflagellata Lemmermann, 1901 | first1 = Øjvind | last1 = Moestrup | first2 = Charles J. | last2 = O'Kelly | title = An Illustrated Guide to the Protozoa | edition = 2nd | editor-first1 = John J. | editor-last1 = Lee | editor-first2 = Gordon F. | editor-last2 = Leedale | editor-first3 = Phyllis | editor-last3 = Bradbury | publisher = Society of Protozoologists | publication-place = Lawrence, Kansas | date = 2000 | url = https://protistologists.org/publications/illustrated-guide-to-the-protozoa/ | volume = II | pages = 775–782 | chapter-url = https://protistologists.org/wp-content/uploads/2023/07/17SILICOFLAGELLATA.pdf}}</ref>

<ref name="Substitute names for Protozoa">{{cite journal | first1 = Hüseyin | last1 = Özdikmen | date = 2009 | title = Substitute names for some unicellular animal taxa (Protozoa) | journal = Munis Entomology & Zoology | volume = 4 |pages= 233–256 | url = https://www.researchgate.net/publication/266524205_Substitute_names_for_some_unicellular_animal_taxa_Protozoa}}</ref>

<ref name="Vicicitus">{{cite journal | first1 =  F. Hoe | last1 = Chang | first2 = Margaret | last2 = McVeagh | first3 = Mark | last3 = Gall | first4 = Peter | last4 = Smith | date = 2012 | title = ''Chattonella globosa'' is a member of Dictyochophyceae: reassignment to ''Vicicitus'' gen. nov., based on molecular phylogeny, pigment composition, morphology and life history | journal = Phycologia | volume = 51 | issue = 4 | pages = 403–420 | doi = 10.2216/10-104.1 }}</ref>

<ref name="Nakada 2010">{{cite journal | title = Nomenclatural notes on some ambiregnal generic names (comments to Özdikmen, 2009) | first1 = Takashi | last1 = Nakada | date = 2010 | journal = Munis Entomology & Zoology | volume = 5 | issue = 1 | pages = 204 –208 | url = https://www.munisentzool.org/yayin/vol5/issue1/204-208.pdf}}</ref>

<ref name="Chang 2015">{{cite journal | first1 = F. Hoe | last1 = Chang | date = 2015-10-20 | title = ''Dictyocha octonaria'' from New Zealand | journal = Phycological Research | volume = 63 | pages = 253–264 | doi=10.1111/pre.12107}}</ref>

<ref name="Hernández-Becerril 2001">{{cite journal | vauthors = Hernández-Becerril DU, Bravo-Sierra E | title = Planktonic Silicoflagellates (Dictyochophyceae) from the Mexican Pacific Ocean | volume = 44 | issue = 5 | date = 2001 | pages = 417–423 | doi = 10.1515/BOT.2001.050 | journal = Botanica Marina}}</ref>

</references>
{{taxonbar|from=Q25367449}}
Category:Dictyochophyceae
Category:Ochrophyte genera
Category:Taxa described in 1837

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