European journal of protistology最新文献_第2页

Taxonomy and phylogeny of three species in Perichaena sensu lato (Myxomycetes = Myxogastria) from China 来自中国的 Perichaena sensu lato (Myxomycetes = Myxogastria) 中三个物种的分类和系统发育

IF 1.9 2区生物学

European journal of protistology Pub Date : 2024-06-12 DOI: 10.1016/j.ejop.2024.126105

Wen-Long Song , Min Li , Zi-Qi Wang , Shuang-Lin Chen

{"title":"Taxonomy and phylogeny of three species in Perichaena sensu lato (Myxomycetes = Myxogastria) from China","authors":"Wen-Long Song , Min Li , Zi-Qi Wang , Shuang-Lin Chen","doi":"10.1016/j.ejop.2024.126105","DOIUrl":"10.1016/j.ejop.2024.126105","url":null,"abstract":"<div>After Gulielmina was erected and Ophiotheca was resurrected based on some species originally included in Perichaena (Trichiaceae, Trichiales, Myxomyxetes), some specimens from the Herbarium of Fungi of Nanjing Normal University previously identified as Perichaena species were reexamined from morphological and two-gene (nuclear 18S rDNA and elongation factor-1 alpha) phylogenetic perspectives. In this study, two new myxomycete species, Gulielmina subreticulospora and Ophiotheca dictyospora, are described. Gulielmina subreticulospora shows the following character combination: branched plasmodiocarps, single peridium with circular protrusions in the inner surface, capillitium (2.4–)2.8–3.0(–3.4) μm in diameter, spores (7.4–)8.0–8.5(–9.0) μm in diameter and sub-reticulated. Ophiotheca dictyospora shows the following character combination: sessile sporocarps to short plasmodiocarps, single peridium with a densely irregular network and protrusions in the inner surface, capillitium (2.7–)3.5–5.0(–7.1) μm in diameter, uneven, decorated with spines of uneven size, spores (7.7–)8.2–8.6(–9.4) μm in diameter including obviously complete cristate reticulation with serrated edges, with deep and clear grids. Both new taxa were compared with related species and their genetic isolation was statistically tested. Moreover, a comprehensive morphological description and a detailed figure plate are provided for Perichaena verrucifera, and its phylogenetic position is determined.</div>","PeriodicalId":12042,"journal":{"name":"European journal of protistology","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141394200","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Coleps shanghaiensis n. sp. challenges the validity of the genus Levicoleps (Cilophora, Prostomatida) 上海鞘氨蝶属对鞘氨蝶属的有效性提出了挑战（蝶形目，原口纲）

IF 2.9 2区生物学

European journal of protistology Pub Date : 2024-06-05 DOI: 10.1016/j.ejop.2024.126095

Lingxuan Luo , Junqi Guo , Yu Hu , Jiamei Jiang , Hongbo Pan

引用次数: 0

Protists in science communication 科学传播中的原生生物

IF 2.9 2区生物学

European journal of protistology Pub Date : 2024-06-01 DOI: 10.1016/j.ejop.2024.126094

Álmos Becz , Federico Buonanno , Gabriele Achille , Claudio Ortenzi , Sabine Wanzenböck , Alan Warren , Bettina Sonntag

引用次数: 0

Phylogenomics corroborates morphology: New discussions on the systematics of Trichostomatia (Ciliophora, Litostomatea) 系统发生组学证实了形态学：关于三鳃纲系统学的新讨论（纤毛虫纲，Litostomatea属）

IF 2.9 2区生物学

European journal of protistology Pub Date : 2024-05-24 DOI: 10.1016/j.ejop.2024.126093

Franciane Cedrola , Gözde Gürelli , Marcus Vinicius Xavier Senra , Millke Jasmine Arminini Morales , Roberto Júnio Pedroso Dias , Vera Nisaka Solferini

引用次数: 0

Epibiotic ciliate communities on the crayfish Procambarus (Austrocambarus) sp. cultivated in a rustic aquaculture in southern Mexico 墨西哥南部水产养殖中螯虾(Procambarus (Austrocambarus) sp.)的外生纤毛虫群落

IF 1.9 2区生物学

European journal of protistology Pub Date : 2024-05-17 DOI: 10.1016/j.ejop.2024.126092

Mireya Ramírez-Ballesteros , Carlos Alberto Durán-Ramírez , Victor Manuel Romero-Niembro , Rosaura Mayén-Estrada

{"title":"Epibiotic ciliate communities on the crayfish Procambarus (Austrocambarus) sp. cultivated in a rustic aquaculture in southern Mexico","authors":"Mireya Ramírez-Ballesteros , Carlos Alberto Durán-Ramírez , Victor Manuel Romero-Niembro , Rosaura Mayén-Estrada","doi":"10.1016/j.ejop.2024.126092","DOIUrl":"10.1016/j.ejop.2024.126092","url":null,"abstract":"<div>Rustic aquaculture systems represent a sustainable production alternative in the world, providing appropriate conditions for the establishment of epibiotic ciliates on crayfish. However, the impact of epibiotic ciliates on the aquaculture production has been insufficiently studied hitherto. The objective of this work was to identify the epibiotic ciliates on the surface of the crayfish Procambarus (Austrocambarus) sp. and analyze whether there is any correlation between seasonality and environmental conditions in an artificial pond in Chiapas, Mexico. The crayfish were collected during dry and rainy seasons to investigate their ciliate epibionts. Some physical and chemical parameters of the sampled water were measured and correlation matrix analyses were applied to detect possible relationships between the presence of ciliates and environmental parameters. Thirteen species belonging to the subclasses Peritrichia and Suctoria were identified. Significant differences were found for some environmental parameters and species recorded in both seasons. The present data could help to better understand the relationship bewteen the epibiotic ciliate community on crayfish and some environmental parameters in aquaculture systems.</div>","PeriodicalId":12042,"journal":{"name":"European journal of protistology","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0932473924000427/pdfft?md5=dc80aed5afbf09a1a85de88df3b7fa77&pid=1-s2.0-S0932473924000427-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141030337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Validation and redescription of Acanthamoeba terricola Pussard, 1964 (Amoebozoa: Acanthamoebidae) Acanthamoeba terricola Pussard, 1964（阿米巴原虫：棘阿米巴科）的验证和重新描述

IF 2.9 2区生物学

European journal of protistology Pub Date : 2024-05-15 DOI: 10.1016/j.ejop.2024.126091

Daniele Corsaro , Martin Mrva , Philippe Colson , Julia Walochnik

{"title":"Validation and redescription of Acanthamoeba terricola Pussard, 1964 (Amoebozoa: Acanthamoebidae)","authors":"Daniele Corsaro , Martin Mrva , Philippe Colson , Julia Walochnik","doi":"10.1016/j.ejop.2024.126091","DOIUrl":"10.1016/j.ejop.2024.126091","url":null,"abstract":"<div>Acanthamoeba castellanii (Douglas, 1930) Page, 1967 is the type species of a widespread genus of free-living amoebae, potentially pathogenic for humans and animals. The Neff strain is one of the most widely used in biological research, serving as a model for both A. castellanii and the whole genus in general. The Neff strain, isolated in California, closely resembles another strain found in France and originally described as a separate species, Acanthamoeba terricola Pussard, 1964, but both were successively synonymized with A. castellanii. Molecular sequence analysis has largely replaced morphological diagnosis for species identification in Acanthamoeba, and rDNA phylogenies show that the Neff strain forms a distinct lineage from that of the type strain of A. castellanii. In this study, we compared the type strain of A. terricola with the Neff strain and A. castellanii, and analysed the available molecular data including new sequences obtained from A. terricola. Here we provide molecular evidence to validate the species A. terricola. The Neff strain is therefore transferred to A. terricola and should no longer be considered as belonging to A. castellanii.</div>","PeriodicalId":12042,"journal":{"name":"European journal of protistology","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141031470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Species-specific predation determines the feeding impacts of six soil protist species on bacterial and eukaryotic prey 物种捕食决定了六种土壤原生生物对细菌和真核生物猎物的取食影响

IF 2.9 2区生物学

European journal of protistology Pub Date : 2024-05-11 DOI: 10.1016/j.ejop.2024.126090

Alejandro Berlinches de Gea , Stefan Geisen , Franka Grootjans , Rutger A. Wilschut , Arne Schwelm

{"title":"Species-specific predation determines the feeding impacts of six soil protist species on bacterial and eukaryotic prey","authors":"Alejandro Berlinches de Gea , Stefan Geisen , Franka Grootjans , Rutger A. Wilschut , Arne Schwelm","doi":"10.1016/j.ejop.2024.126090","DOIUrl":"10.1016/j.ejop.2024.126090","url":null,"abstract":"<div>Predatory protists play a central role in nutrient cycling and are involved in other ecosystem functions by predating the microbiome. While most soil predatory protist species arguably are bacterivorous, some protist species can prey on eukaryotes. However, studies about soil protist feeding mainly focused on bacteria as prey and rarely tested both bacteria and eukaryotes as potential prey. In this study, we aimed to decipher soil predator–prey interactions of three amoebozoan and three heterolobosean soil protists and potential bacterial (Escherichia coli; 0.5–1.5 µm), fungal (Saccharomyces cerevisiae; 5–7 µm) and protist (Plasmodiophora brassicae; 3–5 µm) prey, either as individual prey or in all their combinations. We related protist performance (relative abundance) and prey consumption (qPCR) to the protist phylogenetic group and volume. We showed that for the six soil protist predators, the most suitable prey was E. coli, but some species also grew on P. brassicae or S. cerevisiae. While protist relative abundances and growth rates depended on prey type in a protist species-specific manner, phylogenetic groups and volume affected prey consumption. Yet we conclude that protist feeding patterns are mainly species-specific and that some known bacterivores might be more generalist than expected, even preying on eukaryotic plant pathogens such as P. brassicae.</div>","PeriodicalId":12042,"journal":{"name":"European journal of protistology","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2024-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0932473924000403/pdfft?md5=5230387304ec9b0524af064607d4f01f&pid=1-s2.0-S0932473924000403-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141040172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Molecular characterization and functional analysis of Eimeria tenella ankyrin repeat-containing protein 天牛埃默氏菌含 ankyrin 重复蛋白的分子特征和功能分析

IF 2.9 2区生物学

European journal of protistology Pub Date : 2024-05-10 DOI: 10.1016/j.ejop.2024.126089

Huilin Guo , Qiping Zhao , Haixia Wang, Shunhai Zhu, Hui Dong, Xinrui Xie, Lihui Wang, Lang Chen, Hongyu Han

{"title":"Molecular characterization and functional analysis of Eimeria tenella ankyrin repeat-containing protein","authors":"Huilin Guo , Qiping Zhao , Haixia Wang, Shunhai Zhu, Hui Dong, Xinrui Xie, Lihui Wang, Lang Chen, Hongyu Han","doi":"10.1016/j.ejop.2024.126089","DOIUrl":"https://doi.org/10.1016/j.ejop.2024.126089","url":null,"abstract":"<div>Chicken coccidiosis causes disastrous losses to the poultry industry all over the world. Eimeria tenella is the most prevalent of these disease-causing species. Our former RNA-seq indicated that E. tenella ankyrin repeat-containing protein (EtANK) was expressed differently between drug-sensitive (DS) and drug-resistant strains. In this study, we cloned EtANK and analyzed its translational and transcriptional levels using quantitative real-time PCR (qPCR) and western blotting. The data showed that EtANK was significantly upregulated in diclazuril-resistant (DZR) strain and maduramicin-resistant (MRR) strain compared with the drug-sensitive (DS) strain. In addition, the transcription levels in the DZR strains isolated from the field were higher than in the DS strain. The translation levels of EtANK were higher in unsporulated oocysts (UO) than in sporozoites (SZ), sporulated oocysts (SO), or second-generation merozoites (SM), and the protein levels in SM were significantly higher than in UO, SO, and SZ. The results of the indirect immunofluorescence localization showed that the protein was distributed mainly at the anterior region of SZ and on the surface and in the cytoplasm of SM. The fluorescence intensity increased further with its development in vitro. An anti-rEtANK polyclonal antibody inhibited the invasive ability of E. tenella in DF-1 cells. These results showed that EtANK may be related to host cell invasion, required for the parasite’s growth in the host, and may be involved in the development of E. tenella resistance to some drugs.</div>","PeriodicalId":12042,"journal":{"name":"European journal of protistology","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2024-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140917837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Morphology and molecular phylogeny of three Parasonderia species including a new species (Ciliophora, Plagiopylea) 包括一个新种在内的三个 Parasonderia 种类的形态学和分子系统发育（纤毛虫，Plagiopylea）。

IF 2.9 2区生物学

European journal of protistology Pub Date : 2024-05-04 DOI: 10.1016/j.ejop.2024.126087

Ran Li , Wenbao Zhuang , Xiaochen Feng , Xiaoxuan Zhu , Xiaozhong Hu

{"title":"Morphology and molecular phylogeny of three Parasonderia species including a new species (Ciliophora, Plagiopylea)","authors":"Ran Li , Wenbao Zhuang , Xiaochen Feng , Xiaoxuan Zhu , Xiaozhong Hu","doi":"10.1016/j.ejop.2024.126087","DOIUrl":"10.1016/j.ejop.2024.126087","url":null,"abstract":"<div>Ciliates of the class Plagiopylea play a vital role in various anaerobic environments as consumers of prokaryotes. Yet, the diversity and phylogeny of this group of ciliates, especially marine representatives, remain poorly known. In this study, three Parasonderia species, viz., Parasonderia elongata spec. nov., and the already known P. cyclostoma and P. vestita, discovered in anaerobic sediments from various intertidal zones in China, were investigated based on their living morphology, infraciliature, and small subunit ribosomal rRNA gene sequences. Parasonderia elongata can be recognized by its larger body size, elongated body shape, oval oral opening, number of oral kineties, and significantly shortened leftmost postbuccal polykineties on the cell surface. Improved diagnosis and redescription of P. cyclostoma is provided for the first time, including data on infraciliature and molecular sequence. Phylogenetic analyses revealed that the three species cluster together and with the sequence of a Chinese population of P. vestita already present in the GenBank database, forming a robust clade.</div>","PeriodicalId":12042,"journal":{"name":"European journal of protistology","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2024-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140956949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Morphology, morphogenesis and molecular phylogeny of a new soil ciliate, Lamtostyla paravitiphila nov. spec. (Ciliophora, Hypotrichia) 一种新的土壤纤毛虫 Lamtostyla paravitiphila nov. spec.(纤毛虫纲，Hypotrichia)

IF 2.9 2区生物学

European journal of protistology Pub Date : 2024-05-02 DOI: 10.1016/j.ejop.2024.126088

Tengteng Zhang , Furui Lu , Xiaoqing Yang, Yurui Wang, Chen Shao

{"title":"Morphology, morphogenesis and molecular phylogeny of a new soil ciliate, Lamtostyla paravitiphila nov. spec. (Ciliophora, Hypotrichia)","authors":"Tengteng Zhang , Furui Lu , Xiaoqing Yang, Yurui Wang, Chen Shao","doi":"10.1016/j.ejop.2024.126088","DOIUrl":"https://doi.org/10.1016/j.ejop.2024.126088","url":null,"abstract":"<div>The morphology and morphogenesis of Lamtostyla paravitiphila nov. spec., a novel soil hypotrichous ciliate collected from eastern China, were investigated based on live observations and protargol-stained specimens. The new species is morphologically characterized as follows: seven to twelve macronuclear nodules, cortical granules absent, 19–26 adoral membranelles, three or four frontoventral cirri, the amphisiellid median cirral row extends to about mid-body and composed of 12–18 cirri, two or three transverse cirri, 27–39 left and 30–41 right marginal cirri, three almost bipolar dorsal kineties. Morphogenetically, it is characterized by the initial formation of six frontal-ventral-transverse cirral anlagen as primary primordia. Notably, the amphisiellid median cirral row and the posterior frontoventral cirrus (or cirri) contribute to the development of the frontal-ventral-transverse cirral anlagen, while the buccal cirrus may not participate in this process. Phylogenetic analyses based on small subunit ribosomal DNA sequence data indicate that the Lamtostyla species with available molecular data do not form a monophyletic group.</div>","PeriodicalId":12042,"journal":{"name":"European journal of protistology","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2024-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140913997","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0