The end of a winding path: The anaerobic ciliate Spirorhynchus is a member of the class Muranotrichea
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F25%3A10504577" target="_blank" >RIV/00216208:11310/25:10504577 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=myTTyGVBYy" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=myTTyGVBYy</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.protis.2025.126129" target="_blank" >10.1016/j.protis.2025.126129</a>
Alternative languages
Result language
angličtina
Original language name
The end of a winding path: The anaerobic ciliate Spirorhynchus is a member of the class Muranotrichea
Original language description
Ciliated protists (Ciliophora) are important members of freshwater, brackish, marine, and hypersaline benthic microbial communities. As part of our broader studies of anaerobic protists, we encountered a ciliate in hypoxic sediment samples from three geographically distant saline habitats and identified it as Spirorhynchus verrucosus Cunha, 1915. This highly unusual ciliate has a complicated nomenclatural and taxonomic history and has been assigned to the armophorean family Metopidae. The distinctive cell shape and unique arrangement of ectosymbionts allows identification of this species by in vivo observation. Two populations of another ciliate, found in deep-sea sediments, were recognized as a morphologically and genetically distinct but not yet formally described Spirorhynchus species. Muranotrichea Rotterová et al., 2020 is a recently established class of obligately anaerobic marine ciliates that bear prokaryotic ectosymbionts, and includes one family with two genera and three species. Phylogenetic analyses, based on the first 18S rRNA gene sequences from the genus, place Spirorhynchus in Class Muranotrichea. In single-gene trees, Spirorhynchus is monophyletic, branching as the closest relative of a marine environmental sequence and the muranotrichean genus Thigmothrix, with which Spirorhynchus also shares some morphologic similarities. Here, we also provide the first protargol impregnations and scanning electron microscopy images from Spirorhynchus.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10606 - Microbiology
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Protist
ISSN
1434-4610
e-ISSN
1618-0941
Volume of the periodical
179
Issue of the periodical within the volume
December
Country of publishing house
DE - GERMANY
Number of pages
11
Pages from-to
126129
UT code for WoS article
001592518800001
EID of the result in the Scopus database
2-s2.0-105017799240