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[PMID]: 29510330
[Au] Autor:Cai X; Wang C; Pan X; El-Serehy HA; Mu W; Gao F; Qiu Z
[Ad] Address:College of Life Science and Technology, Harbin Normal University, Harbin 150025, China.
[Ti] Title:Morphology and systematics of two freshwater Frontonia species (Ciliophora, Peniculida) from northeastern China, with comparisons among the freshwater Frontonia spp.
[So] Source:Eur J Protistol;63:105-116, 2018 Jan 12.
[Is] ISSN:1618-0429
[Cp] Country of publication:Germany
[La] Language:eng
[Ab] Abstract:The morphology and infraciliature of two Frontonia species, F. shii spec. nov. and F. paramagna Chen et al., 2014, isolated from a freshwater pond in northeastern China, were investigated using living observation and silver staining methods Frontonia shii spec. nov. is recognized by the combination of the following characters: freshwater Frontonia, size in vivo about 220-350 × 130-250 µm, elliptical in outline; 128-142 somatic kineties; three or four vestibular kineties, six or seven postoral kineties; peniculi 1-3 each with four kineties; single contractile vacuole with about 10 collecting canals. The improved diagnosis for F. paramagna is based on the current and previous reports. Comparisons among freshwater Frontonia are also provided. The small subunit ribosomal rRNA gene (SSU rDNA) sequences of the two species are characterized and phylogenetic analyses based on these sequences show that both species fall into the core clade of the genus Frontonia, and this genus is not monophyletic.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1803
[Cu] Class update date: 180306
[Lr] Last revision date:180306
[St] Status:Publisher

  2 / 3626 MEDLINE  
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[PMID]: 29256279
[Au] Autor:Herczeg D; Sipos D; Dán Á; Loy C; Kallert DM; Eszterbauer E
[Ad] Address:1 Institute for Veterinary Medical Research, Centre for Agricultural Research, Hungarian Academy of Sciences , Hungária krt. 21, H-1143 Budapest , Hungary.
[Ti] Title:The effect of dietary immunostimulants on the susceptibility of common carp (Cyprinus carpio) to the white spot parasite, Ichthyophthirius multifiliis.
[So] Source:Acta Vet Hung;65(4):517-530, 2017 12.
[Is] ISSN:0236-6290
[Cp] Country of publication:Hungary
[La] Language:eng
[Ab] Abstract:One of the main obstacles in freshwater aquaculture is the parasitic ciliate Ichthyophthirius multifiliis (Ich), the causative agent of white spot disease. The use of immunostimulants as feed additives may be a promising approach to control Ich infection. In the present study, we tested the prophylactic effect of orally administered ß-1,3/1,6-glucan and propolis extract E50 against Ich infection in common carp. In total, 122 fish were separated into three experimental groups fed with a control, 3% ß-glucan and 1% propolis diet for 40 consecutive days, respectively. On day 40, 16 fish per group were individually exposed to Ich theronts and the number of trophonts was counted 5 days post exposure. Relative gene expression of interleukin 1-ß (IL-1-ß) in common carp liver was examined by qPCR. Compared to control, the mean infection intensity was lower in the ß-glucan- and propolis-fed groups; however, the difference was not statistically significant. The relative expression of IL-1-ß significantly decreased in the propolis-fed group at day 10. In the ß-glucan-fed group, a significant IL-1-ß decrease was detected at day 15 compared to control. Although the Ich infection intensity was slightly decreased in both treated groups, and IL-1-ß was moderately down-regulated in the liver of common carp, our results suggest that the applied feeding regime is insufficient to prevent Ich outbreaks in common carp.
[Mh] MeSH terms primary: Adjuvants, Immunologic/administration & dosage
Carps
Ciliophora Infections/veterinary
Ciliophora
Dietary Supplements
Fish Diseases/parasitology
[Mh] MeSH terms secundary: Animals
Ciliophora/genetics
Ciliophora/isolation & purification
Ciliophora Infections/parasitology
Ciliophora Infections/prevention & control
RNA/genetics
[Pt] Publication type:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Name of substance:0 (Adjuvants, Immunologic); 63231-63-0 (RNA)
[Em] Entry month:1803
[Cu] Class update date: 180305
[Lr] Last revision date:180305
[Js] Journal subset:IM
[Da] Date of entry for processing:171220
[St] Status:MEDLINE
[do] DOI:10.1556/004.2017.050

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[PMID]: 29504196
[Au] Autor:Heber D; Stoeck T; Foissner W
[Ad] Address:Department of Organismic Biology, University of Salzburg, Hellbrunner Strasse 34, Salzburg, 5020, Austria.
[Ti] Title:Corrigendum: "Morphology and Ontogenesis of Psilotrichides hawaiiensis nov. gen., nov. spec. and Molecular Phylogeny of the Psilotrichidae (Ciliophora, Hypotrichia)" by Heber et al. 2014.
[So] Source:J Eukaryot Microbiol;65(2):291-292, 2018 Mar.
[Is] ISSN:1550-7408
[Cp] Country of publication:United States
[La] Language:eng
[Pt] Publication type:PUBLISHED ERRATUM
[Em] Entry month:1803
[Cu] Class update date: 180305
[Lr] Last revision date:180305
[St] Status:In-Data-Review
[do] DOI:10.1111/jeu.12487

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[PMID]: 29504195
[Ti] Title:Corrigendum to ″Schmidingerothrix salinarum nov. spec. is the Molecular Sister of the Large Oxytrichid Clade (Ciliophora, Hypotricha) by Foissner et al. 2014″.
[So] Source:J Eukaryot Microbiol;65(2):290, 2018 Mar.
[Is] ISSN:1550-7408
[Cp] Country of publication:United States
[La] Language:eng
[Pt] Publication type:PUBLISHED ERRATUM
[Em] Entry month:1803
[Cu] Class update date: 180305
[Lr] Last revision date:180305
[St] Status:In-Data-Review
[do] DOI:10.1111/jeu.12481

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[PMID]: 28964886
[Au] Autor:Zhuang Y; Clamp JC; Yi Z; Ji D
[Ad] Address:Ocean School, Yantai University, Yantai 264005, China.
[Ti] Title:Phylogeny of the families Zoothamniidae and Epistylididae (Protozoa: Ciliophora: Peritrichia) based on analyses of three rRNA-coding regions.
[So] Source:Mol Phylogenet Evol;118:99-107, 2018 Jan.
[Is] ISSN:1095-9513
[Cp] Country of publication:United States
[La] Language:eng
[Ab] Abstract:Peritrichs are a major group of ciliates with worldwide distribution, and they play important roles in many habitats. Intrafamilial phylogeny of some peritrichs was investigated using information from three genes, which provided more robust interpretations than single-gene analyses. Sixty-seven new sequences including SSU rDNA, ITS1-5.8S-ITS2 and LSU rDNA were aligned with available sequences in GenBank to infer phylogenetic relationships within the families Zoothamniidae and Epistylididae. Results reveal the following relationships: (1) Epistylididae is polyphyletic, consisting of two clades that nest within the Zoothamniidae as part of the crown clade of peritrichs (order Vorticellida) and a third one that is part of the basal clade of peritrichs (order Opercularida); (2) Epistylis elongata falls within one of the clades of Zoothamnium rather than with congeners; (3) Zoothamnium is probably paraphyletic, consisting of three divergent clades, with the genera Myoschiston and Zoothamnopsis intermingled with species of Zoothamnium. The following evolutionary hypotheses can be inferred from these results: (1) the contractile stalk of Zoothamnium is plesiomorphic. (2) Myoschiston, Zoothamnopsis and clade II of Epistylididae are derived from the Zoothamnium morphotype by partial or incomplete development of the spasmoneme that forms the contractile center of the stalk around which the rigid cortex is secreted. (3) Clade I of the Epistylididae, which are primarily colonial forms that appear never to have evolved a spasmoneme of any sort, may represent the ancestral morphotype of peritrichs.
[Mh] MeSH terms primary: Ciliophora/classification
Open Reading Frames/genetics
Phylogeny
RNA, Ribosomal/genetics
[Mh] MeSH terms secundary: Base Sequence
China
Ciliophora/genetics
DNA, Protozoan/genetics
DNA, Ribosomal/genetics
Geography
Likelihood Functions
Ribosome Subunits, Small/genetics
Species Specificity
[Pt] Publication type:JOURNAL ARTICLE
[Nm] Name of substance:0 (DNA, Protozoan); 0 (DNA, Ribosomal); 0 (RNA, Ribosomal)
[Em] Entry month:1803
[Cu] Class update date: 180302
[Lr] Last revision date:180302
[Js] Journal subset:IM
[Da] Date of entry for processing:171002
[St] Status:MEDLINE

  6 / 3626 MEDLINE  
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[PMID]: 29498766
[Au] Autor:Song W; Wang L; Li L; Al-Farraj SA; Aleidan A; Smith S; Hu X
[Ad] Address:Laboratory of Protozoology, Institute of Evolution and Marine Biodiversity, OUC, Qingdao, 266003, China.
[Ti] Title:Morphological Characterizations of Four Species of Parallelostrombidium (Ciliophora, Oligotrichia), with a Note on the Phylogeny of the Genus.
[So] Source:J Eukaryot Microbiol;, 2018 Mar 02.
[Is] ISSN:1550-7408
[Cp] Country of publication:United States
[La] Language:eng
[Ab] Abstract:The morphology and phylogeny of four oligotrichid ciliates, Parallelostrombidium paraellipticum sp. n., P. dragescoi sp. n., P. jankowskii (Xu et al., 2009) comb. n., and P. kahli (Xu et al., 2009) comb. n., are described or redescribed based on live observation, protargol stained material, and SSU rRNA gene sequences. The new species P. paraellipticum sp. n. is characterized by its obovoidal cell shape, adoral zone composed of 17-21 collar, 9-11 buccal, and two thigmotactic membranelles, and extrusomes attached in one row along the girdle kinety. The new species P. dragescoi sp. n. is distinguished from its congeners by its obovoidal cell shape and a lack of thigmotactic membranelles. Based on ciliary patterns recognizable in the original slides, Omegastrombidium jankowskii Xu et al., 2009 and O. kahli Xu et al., 2009 should be transferred to the genus Parallelostrombidium Agatha, 2004. Phylogenetic analyses based on SSU rRNA gene sequence data demonstrate that all four new sequences cluster with previously described congeners. The genus Parallelostrombidium is separated into two clusters, suggesting its non-monophyly and probably corresponding to the two subgenera proposed by Agatha and Strüder-Kypke (2014), as well as their morphological difference (cell dorsoventrally flattened vs. unflattened). This article is protected by copyright. All rights reserved.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1803
[Cu] Class update date: 180302
[Lr] Last revision date:180302
[St] Status:Publisher
[do] DOI:10.1111/jeu.12513

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[PMID]: 29331864
[Au] Autor:Chen X; Li L; Al-Farraj SA; Ma H; Pan H
[Ad] Address:Department of Marine Organism Taxonomy and Phylogeny, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory of Protozoology, Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao 266003, China.
[Ti] Title:Taxonomic studies on Aegyria apoliva sp. nov. and Trithigmostoma cucullulus (Müller, 1786) Jankowski, 1967 (Ciliophora, Cyrtophoria) with phylogenetic analyses.
[So] Source:Eur J Protistol;62:122-134, 2018 Feb.
[Is] ISSN:1618-0429
[Cp] Country of publication:Germany
[La] Language:eng
[Ab] Abstract:The morphology, including the ciliary pattern, of two cyrtophorid ciliates, namely Aegyria apoliva sp. nov. and Trithigmostoma cucullulus (Müller, 1786) Jankowski, 1967, were investigated. They were isolated from coastal water off Qingdao and from an estuarine habitat in south China, respectively. Aegyria apoliva sp. nov. is characterized as following: body size 100-120 × 50-70 µm in vivo with dark pigment spot on anterior left part of cell; 48-69 somatic kineties; one preoral and four or five circumoral kineties; 9-13 transpodial segments; 26-40 nematodesmal rods; 6-10 contractile vacuoles. The Guangzhou population of Trithigmostoma cucullulus corresponds well with previously described populations, therefore only a brief morphological description is presented. Phylogenetic analysis based on small-subunit rRNA gene sequences data supports the establishment of the new species as well as the monophyly of both genera.
[Mh] MeSH terms primary: Ciliophora/classification
Phylogeny
[Mh] MeSH terms secundary: China
Ciliophora/genetics
Ciliophora/ultrastructure
RNA, Ribosomal, 18S/genetics
Seawater/parasitology
[Pt] Publication type:JOURNAL ARTICLE
[Nm] Name of substance:0 (RNA, Ribosomal, 18S)
[Em] Entry month:1802
[Cu] Class update date: 180223
[Lr] Last revision date:180223
[Js] Journal subset:IM
[Da] Date of entry for processing:180115
[St] Status:MEDLINE

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[PMID]: 29287245
[Au] Autor:Sabaneyeva E; Castelli M; Szokoli F; Benken K; Lebedeva N; Salvetti A; Schweikert M; Fokin S; Petroni G
[Ad] Address:Department of Cytology and Histology, St. Petersburg State University, Russian Federation. Electronic address: e.sabaneeva@spbu.ru.
[Ti] Title:Host and symbiont intraspecific variability: The case of Paramecium calkinsi and "Candidatus Trichorickettsia mobilis".
[So] Source:Eur J Protistol;62:79-94, 2018 Feb.
[Is] ISSN:1618-0429
[Cp] Country of publication:Germany
[La] Language:eng
[Ab] Abstract:Newly isolated strains of the ciliate Paramecium calkinsi and their cytoplasmic bacterial endosymbionts were characterized by a multidisciplinary approach, including live observation, ultrastructural investigation, and molecular analysis. Despite morphological resemblance, the characterized P. calkinsi strains showed a significant molecular divergence compared to conspecifics, possibly hinting for a cryptic speciation. The endosymbionts were clearly found to be affiliated to the species "Candidatus Trichorickettsia mobilis" (Rickettsiales, Rickettsiaceae), currently encompassing only bacteria retrieved in an obligate intracellular association with other ciliates. However, a relatively high degree of intraspecific divergence was observed as well, thus it was possible to split "Candidatus Trichorickettsia" into three subspecies, one of which represented so far only by the newly characterized endosymbionts of P. calkinsi. Other features distinguished the members of each different subspecies. In particular, the endosymbionts of P. calkinsi resided in the cytoplasm and possessed numerous peritrichous flagella, although no motility was evidenced, whereas their conspecifics in other hosts were either cytoplasmic and devoid of flagella, or macronuclear, displaying flagellar-driven motility. Moreover, contrarily to previously analyzed "Candidatus Trichorickettsia" hosts, infected P. calkinsi cells frequently became amicronucleate and demonstrated abnormal cell division, eventually leading to decline of the laboratory culture.
[Mh] MeSH terms primary: Alphaproteobacteria/physiology
Host-Parasite Interactions
Paramecium/microbiology
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1802
[Cu] Class update date: 180223
[Lr] Last revision date:180223
[Js] Journal subset:IM
[Da] Date of entry for processing:171230
[St] Status:MEDLINE

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[PMID]: 29253733
[Au] Autor:Jung JH; Cho J; Jang YH; Gil DY
[Ad] Address:Department of Biology, Gangneung-Wonju National University, Gangneung, South Korea. Electronic address: jhjung@gwnu.ac.kr.
[Ti] Title:Morphology and molecular phylogeny of Holostichides terrae nov. spec. (Ciliophora: Spirotrichea) with discussion on the possible non-monophyly of Holostichides.
[So] Source:Eur J Protistol;62:69-78, 2018 Feb.
[Is] ISSN:1618-0429
[Cp] Country of publication:Germany
[La] Language:eng
[Ab] Abstract:In a study to investigate ciliate diversity, we discovered a new soil ciliate. Holostichides terrae nov. spec. was examined and identified based on observations of living cells and stained specimens. In addition, the nuclear SSU rRNA gene along with morphology was analyzed to infer its phylogenetic position. The new species closely resembles H. dumonti, but can be distinguished by the morphology of the pharynx (with rod-shaped structure vs. lacking) and the number of frontoterminal cirri (invariably two vs. usually more than two). Molecular analyses indicate that the genus Holostichides is not monophyletic, and H. terrae is closely related with the genera Birojimia and Hemicycliostyla, both of which have a pharynx with rod-shaped structures, as also seen in H. terrae.
[Mh] MeSH terms primary: Ciliophora
Phylogeny
[Mh] MeSH terms secundary: Ciliophora/classification
Ciliophora/cytology
Ciliophora/genetics
RNA, Ribosomal, 18S/genetics
Soil/parasitology
Species Specificity
[Pt] Publication type:JOURNAL ARTICLE
[Nm] Name of substance:0 (RNA, Ribosomal, 18S); 0 (Soil)
[Em] Entry month:1802
[Cu] Class update date: 180223
[Lr] Last revision date:180223
[Js] Journal subset:IM
[Da] Date of entry for processing:171219
[St] Status:MEDLINE

  10 / 3626 MEDLINE  
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[PMID]: 29202308
[Au] Autor:Lu X; Huang J; Shao C; Berger H
[Ad] Address:The Key Laboratory of Biomedical Information Engineering, Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China; University of Innsbruck, Research Institute for Limnology, Mondseestrasse 9, 5310 Mondsee, Austria; Institute of Evolution & Mar
[Ti] Title:Morphology, cell-division, and phylogeny of Schmidingerothrix elongata spec. nov. (Ciliophora, Hypotricha), and brief guide to hypotrichs with Gonostomum-like oral apparatus.
[So] Source:Eur J Protistol;62:24-42, 2018 Feb.
[Is] ISSN:1618-0429
[Cp] Country of publication:Germany
[La] Language:eng
[Ab] Abstract:The hypotrich Schmidingerothrix elongata spec. nov., discovered in saline (20‰) soil of the Longfeng Wetland, Daqing, northern China, was studied using live observation and protargol impregnation. It is characterized, inter alia, by colorless cortical granules arranged in short rows, three frontoventral cirral rows with the rightmost extending far posteriorly, and 4-8, usually six macronuclear nodules. Cell division proceeds as in congeners and confirms the lack of dorsal ciliature. In phylogenetic analyses based on SSU rDNA, S. elongata is sister of S. salinarum+Paracladotricha salina. A re-investigation of the type slides of P. salina, type of Paracladotricha, revealed a misobservation in the original description. Since P. salina lacks, like Schmidingerothrix spp., a dorsal ciliature, Paracladotricha becomes a junior, subjective synonym of Schmidingerothrix with S. salina comb. nov. as fourth species. A review of the phylogenetic analyses dealing with Schmidingerothrix shows that its position is variable. However, together with the gonostomatid oral apparatus it can be hypothesized that Schmidingerothrix is a member of the Gonostomatidae or a close relative. A list of genera (14) and species (58) which have - like Schmidingerothrix - a gonostomatid oral apparatus, as well as a key to these genera are provided.
[Mh] MeSH terms primary: Hypotrichida/cytology
Phylogeny
Soil/parasitology
[Mh] MeSH terms secundary: China
RNA, Ribosomal, 18S/genetics
Species Specificity
Wetlands
[Pt] Publication type:JOURNAL ARTICLE
[Nm] Name of substance:0 (RNA, Ribosomal, 18S); 0 (Soil)
[Em] Entry month:1802
[Cu] Class update date: 180223
[Lr] Last revision date:180223
[Js] Journal subset:IM
[Da] Date of entry for processing:171205
[St] Status:MEDLINE


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