Morphological, Ultrastructural, Motility and Evolutionary Characterization of Two New Hemistasiidae Species
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F19%3A00520426" target="_blank" >RIV/60077344:_____/19:00520426 - isvavai.cz</a>
Alternative codes found
RIV/60076658:12310/19:43899452
Result on the web
<a href="https://www.sciencedirect.com/science/article/abs/pii/S1434461018301391?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/abs/pii/S1434461018301391?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.protis.2019.04.001" target="_blank" >10.1016/j.protis.2019.04.001</a>
Alternative languages
Result language
angličtina
Original language name
Morphological, Ultrastructural, Motility and Evolutionary Characterization of Two New Hemistasiidae Species
Original language description
Until now, Hemistasia phaeocysticola was the only representative of the monogeneric family Hemistasiidae available in culture. Here we describe two new axenized hemistasiids isolated from Tokyo Bay, Japan. Like in other diplonemids, cellular organization of these heterotrophic protists is characterized by a distinct apical papilla, a tubular cytopharynx contiguous with a deep flagellar pocket, and a highly branched mitochondrion with lamellar cristae. Both hemistasiids also bear a prominent digestive vacuole, peripheral lacunae, and paraflagellar rods, are highly motile and exhibit diverse morphologies in culture. We argue that significant differences in molecular phylogenetics and ultrastructure between these new species and H. phaeocysticola are on the generic level. Therefore, we have established two new genera within Hemistasiidae Artemidia gen. n. and Namystynia gen. n. to accommodate Artemidia motanka, sp. n. and Namystynia karyoxenos, sp. n., respectively. A. motanka permanently carries tubular extrusomes, while in N. karyoxenos, they are present only in starving cells. An additional remarkable feature of the latter species is the presence, in both the cytoplasm and the nucleus, of the endosymbiotic rickettsiid Candidatus Sneabacter namystus. (C) 2019 Elsevier GmbH. All rights reserved.
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
10603 - Genetics and heredity (medical genetics to be 3)
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
2019
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
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Volume of the periodical
170
Issue of the periodical within the volume
3
Country of publishing house
DE - GERMANY
Number of pages
24
Pages from-to
259-282
UT code for WoS article
000476517700001
EID of the result in the Scopus database
2-s2.0-85066240161