The enigmatic genus Malacophrys Kahl, 1926 (Ciliophora: Intramacronucleata) belongs to the class Oligohymenophorea
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F25%3A10496686" target="_blank" >RIV/00216208:11310/25:10496686 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=hQhckBazEP" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=hQhckBazEP</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.protis.2025.126089" target="_blank" >10.1016/j.protis.2025.126089</a>
Alternative languages
Result language
angličtina
Original language name
The enigmatic genus Malacophrys Kahl, 1926 (Ciliophora: Intramacronucleata) belongs to the class Oligohymenophorea
Original language description
The ciliate genus Malacophrys has been incertae sedis for more than 50 years in what is now subphylum Intramacronucleata, provisionally assigned to three different classes by various authors. Of the three species included in the genus, M. sphagni and the type species, Malacophrys rotans, have not been studied by modern methods and M. viridis, although morphologically well-described, lacks molecular characterization. We identified two freshwater ciliates as morphologically consistent with two members of Malacophrys, namely M. rotans and M. viridis. We studied one population of M. rotans, using in vivo observation and silver carbonate and silver nitrate impregnation, and two populations of M. viridis, using in vivo observation, silver carbonate impregnation, and 18S rRNA gene sequencing. Phylogenetic analyses strongly support the position of M. viridis in the class Oligohymenophorea. Morphologic features suggest Malacophrys rotans belongs to order Tetrahymenida, but a confident phylogenetic assignment awaits its molecular sequencing. Differences between their oral structures and silverline patterns indicate that M. rotans and M. viridis likely belong to different genera. A formal separation at the genus level awaits molecular characterization of the type species, M. rotans.
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
<a href="/en/project/GA23-06004S" target="_blank" >GA23-06004S: New approaches to the important symbiosis: Diversity and dynamics of the relationship of anaerobic protists and intracelular methanogenic archea</a><br>
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
176
Issue of the periodical within the volume
March
Country of publishing house
DE - GERMANY
Number of pages
11
Pages from-to
126089
UT code for WoS article
001429376800001
EID of the result in the Scopus database
2-s2.0-85217937921