Journal of Eukaryotic Microbiology最新文献_第8页

Protistan Predators Outshine Fungi in Forest Soil Activity 原生生物捕食者在森林土壤活动中优于真菌。

IF 2.6 4区生物学

Journal of Eukaryotic Microbiology Pub Date : 2026-03-31 DOI: 10.1111/jeu.70072

Longfei Kang, Kenneth Dumack

{"title":"Protistan Predators Outshine Fungi in Forest Soil Activity","authors":"Longfei Kang, Kenneth Dumack","doi":"10.1111/jeu.70072","DOIUrl":"10.1111/jeu.70072","url":null,"abstract":"Despite extensive research on fungal communities in forest soils, our understanding of the whole eukaryotic diversity and distribution remains limited. Moreover, traditional amplicon sequencing methods often introduce severe PCR and primer biases, further hindering accurate assessment of the microbial community composition in forest soils. To address these challenges, this study used a public metatranscriptomic data set to analyze 51 forest soil samples comprising four countries (Canada, France, Spain, and Sweden). Our results reveal that Arcellinida, a eukaryotic order of shell-bearing amoebae, represent the most abundant eukaryotic taxon in forest soils, with an average relative abundance of 12.6%. This finding challenges the conventional view that fungi dominate eukaryotic diversity in these ecosystems. Furthermore, our study demonstrates that Arcellinida (R2 = 0.066, p = 0.006) and soil pH (R2 = 0.126, p < 0.001) are key biological and environmental drivers, respectively, shaping the composition of eukaryotic communities in forest soils, suggesting distinct impact on the microbial community through predation. These findings offer novel insights into the ecological significance of microbial eukaryotes in forest ecosystems and provide a new framework for investigating the predatory dynamics centered on Arcellinida in forest soil microbial networks.","PeriodicalId":15672,"journal":{"name":"Journal of Eukaryotic Microbiology","volume":"73 3","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13037694/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147581370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Single-Cell Transcriptomes and Phylogenomic Analysis of Uncultivated Oxymonads 未栽培Oxymonads的单细胞转录组和系统基因组分析。

IF 2.6 4区生物学

Journal of Eukaryotic Microbiology Pub Date : 2026-03-19 DOI: 10.1111/jeu.70076

Morelia Trznadel, Gordon Lax, Vittorio Boscaro, Rudolf H. Scheffrahn, Christine A. Nalepa, Martin Kolisko, Patrick J. Keeling

{"title":"Single-Cell Transcriptomes and Phylogenomic Analysis of Uncultivated Oxymonads","authors":"Morelia Trznadel, Gordon Lax, Vittorio Boscaro, Rudolf H. Scheffrahn, Christine A. Nalepa, Martin Kolisko, Patrick J. Keeling","doi":"10.1111/jeu.70076","DOIUrl":"10.1111/jeu.70076","url":null,"abstract":"The oxymonads are anaerobic protist symbionts of animals with spectacular morphological complexity and variability, but because only a handful of species have been cultured, very little data are available for the group. This includes molecular data, with only a couple of species having sequenced genomes or transcriptomes. Oxymonads are divided into five families in a classification that has remained more or less unchanged for 35 years, but the relationships of these families are unknown due to a lack of molecular data from three of them. Here, we used single cell transcriptomics on six species from five genera (Oxymonas, Streblomastix, Pyrsonympha, Saccinobaculus, and Laeohelix) to carry out the first phylogenomic analysis of oxymonads that includes all five families. We find a major division between Polymastigidae and Streblomastigidae on one side, and Saccinobaculidae, Oxymonadidae, and Pyrsonymphidae on the other, with Oxymonadidae and Pyrsonymphidae branching as sisters in the latter clade. The phylogenomic tree largely confirms the SSU rRNA tree but provides stronger support at all nodes and suggests a different root. This tree represents a strong starting point to reconstruct the evolution of oxymonads many unusual morphological and molecular characters and to test whether new lineages might represent new families.","PeriodicalId":15672,"journal":{"name":"Journal of Eukaryotic Microbiology","volume":"73 2","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13002328/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147486237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Identification of Three Species in Acanthocystis turfacea Carter 1863 Species Complex, and Notes on Its Symbiosis With Algae 革面棘囊藻（Acanthocystis turfacea Carter 1863）中3个物种的鉴定及其与藻类共生的注释。

IF 2.6 4区生物学

Journal of Eukaryotic Microbiology Pub Date : 2026-03-19 DOI: 10.1111/jeu.70075

Savelii A. Poluzerov, Sofiya V. Dmitrovskaya, Anastasiia E. Shipunova

{"title":"Identification of Three Species in Acanthocystis turfacea Carter 1863 Species Complex, and Notes on Its Symbiosis With Algae","authors":"Savelii A. Poluzerov, Sofiya V. Dmitrovskaya, Anastasiia E. Shipunova","doi":"10.1111/jeu.70075","DOIUrl":"10.1111/jeu.70075","url":null,"abstract":"<div>\u0000 \u0000 Relatively large Acanthocystis turfacea Carter 1863 are the type species of the centrohelid genus Acanthocystis Carter 1863, characterized by bifurcated spine scales. In this study, several isolates and strains identified as A. turfacea are re-evaluated based on morphological, morphometric, and molecular evidence. The Len strain corresponds to A. turfacea sensu stricto, while the Luga and Kos isolates, previously considered A. turfacea paucilituatus Nicholls 2023, are elevated to species level as Acanthocystis paucilituatus n. stat. A distinct Sin strain, with a smaller cell diameter and lacking symbiotic algae, is described here as a new species, Acanthocystis ladogensis n. sp. Molecular phylogenetic analysis based on 18S rRNA gene sequences confirms that these taxa form a well-supported clade within the genus Acanthocystis, and supports the hypothesis that bifurcations at the distal ends of spine scales represent an ancestral feature. Observations under long-term culture demonstrate that A. turfacea maintains a stable symbiotic association with symbiotic algae. The taxonomic status of the A. turfacea species complex and correlations between molecular and structural data are discussed.\u0000 </div>","PeriodicalId":15672,"journal":{"name":"Journal of Eukaryotic Microbiology","volume":"73 2","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147486232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

First Record of a Rhizaria Litharachnium eupilium (Haeckel 1887) Takahashi 1991 (Class: Polycystinea, Order: Nassellaria) and Description of Litharachnium tentorium (Haeckel 1862) From the Indian Ocean Takahashi 1991（纲：多胱藻目：水藻目）和印度洋的Litharachnium tentorium （Haeckel 1862）的描述。

IF 2.6 4区生物学

Journal of Eukaryotic Microbiology Pub Date : 2026-03-17 DOI: 10.1111/jeu.70074

E. P. Harshitha, D. Prabin Dora, Biraja Kumar Sahu

{"title":"First Record of a Rhizaria Litharachnium eupilium (Haeckel 1887) Takahashi 1991 (Class: Polycystinea, Order: Nassellaria) and Description of Litharachnium tentorium (Haeckel 1862) From the Indian Ocean","authors":"E. P. Harshitha, D. Prabin Dora, Biraja Kumar Sahu","doi":"10.1111/jeu.70074","DOIUrl":"10.1111/jeu.70074","url":null,"abstract":"<div>\u0000 \u0000 Rhizarians form an important component in ocean biogeochemistry, used as paleoproxies and significantly contribute to marine biodiversity. These organisms, which are fragile in nature, are poorly studied and understood. A rhizarian species, Litharachnium eupilium (Haeckel 1887) Takahashi 1991 (syn. Sethophormis eupilium Haeckel 1887), was recorded for the first time in the Indian Ocean in plankton samples of central Arabian Sea from 25 to 110 m depth. Another species Litharachnium tentorium (Haeckel 1862) was observed in samples collected from four different stations in multiple depth ranges (upto 1500 m). Additionally, L. tentorium was observed from the plankton samples collected from the Andaman Sea. Studies being scarce on Rhizarians in the Indian Ocean region, this work focuses to expand the knowledge on these protists in this region, which will be useful for future studies to understand their contribution to the biogeochemistry. Study expanding the known geographic range can help understand the factors controlling their distribution and abundance in the world oceans and their fate in a changing environment.\u0000 </div>","PeriodicalId":15672,"journal":{"name":"Journal of Eukaryotic Microbiology","volume":"73 2","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147473901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 Prey Preference and Behavioral Responses to Tetraselmis Chloroplast Donors in the Euglenoid Rapaza viridis 绿刺拟绿刺对四体叶绿体供体的物种特异性捕食偏好和行为反应。

IF 2.6 4区生物学

Journal of Eukaryotic Microbiology Pub Date : 2026-03-17 DOI: 10.1111/jeu.70077

Yuri Yanagihara, Yuichiro Kashiyama, Masami Nakazawa

{"title":"Species-Specific Prey Preference and Behavioral Responses to Tetraselmis Chloroplast Donors in the Euglenoid Rapaza viridis","authors":"Yuri Yanagihara, Yuichiro Kashiyama, Masami Nakazawa","doi":"10.1111/jeu.70077","DOIUrl":"10.1111/jeu.70077","url":null,"abstract":"<div>\u0000 \u0000 Plastids originated through endosymbiosis and enabled the emergence of photosynthetic eukaryotes. However, in several eukaryotic lineages, plastids are not permanently integrated but are instead acquired transiently through predation, a phenomenon known as kleptoplasty. Although kleptoplasty has been documented across diverse eukaryotic groups, the extent to which prey identity constrains plastid acquisition and subsequent maintenance remains poorly defined. In particular, it is unclear whether kleptoplastic organisms exploit plastid donors broadly or depend on highly selective host–prey interactions. Here, we investigated prey responses and feeding behavior in the kleptoplastic euglenoid Rapaza viridis using a phylogenetically diverse set of Tetraselmis species. Through comparative analysis of ingestion behavior, behavioral interactions, and postingestion chloroplast fate among candidate chloroplast donors, we show that R. viridis exhibits strong prey specificity at the species level. Although R. viridis has been shown to depend on Tetraselmis as a source of kleptoplasts, our results demonstrate that ingestion, functional retention, and growth support are restricted to species belonging to the subgenus Tetraselmis. These findings indicate that chloroplast acquisition in R. viridis is constrained by fine-scale host–prey compatibility, rather than by prey availability alone, and highlight the importance of selective prey recognition and post-ingestion processing in regulating kleptoplasty.\u0000 </div>","PeriodicalId":15672,"journal":{"name":"Journal of Eukaryotic Microbiology","volume":"73 2","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147473928","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Cool and Shady: Ecophysiological Preferences of Chrysophytes 阴凉与遮荫：苔藓植物的生理生态偏好。

IF 2.6 4区生物学

Journal of Eukaryotic Microbiology Pub Date : 2026-03-06 DOI: 10.1111/jeu.70071

Christina Bock, Guido Sieber, Sara Beszteri, Frida Klein, Hannah-Marie Stappert, Célina Wessel, Simone Engelskirchen, Jens Boenigk

{"title":"Cool and Shady: Ecophysiological Preferences of Chrysophytes","authors":"Christina Bock, Guido Sieber, Sara Beszteri, Frida Klein, Hannah-Marie Stappert, Célina Wessel, Simone Engelskirchen, Jens Boenigk","doi":"10.1111/jeu.70071","DOIUrl":"10.1111/jeu.70071","url":null,"abstract":"Chrysophyceae (Stramenopiles) are a diverse group of protists widely distributed in various aquatic habitats, including alpine lakes, where they play key ecological roles. Their nutritional modes—phototrophy, heterotrophy, and mixotrophy—enable them to adapt to the unique light and temperature conditions found across altitudinal gradients in mountain environments. This study investigates the growth responses of three mixotrophic and three phototrophic chrysophyte strains, isolated from alpine and pre-alpine lakes, to varying light intensities and temperatures. Our results show that both temperature and light intensity exert strong, species-specific effects on the growth of phototrophic and mixotrophic Chrysophyceae. Despite their contrasting original habitats, most strains shared similar growth optima, with peak performance generally observed between 15°C and 19°C and reduced growth at both lower and higher temperatures. All strains exhibited negative growth in darkness, confirming their phototrophic dependence. Growth rates typically increased with light availability up to a species-specific optimum (12–35 μE m−2 s−1), beyond which either a plateau or a decline was observed. Despite environmental differences among their habitats of origin, temperature and light optima were remarkably consistent across strains.","PeriodicalId":15672,"journal":{"name":"Journal of Eukaryotic Microbiology","volume":"73 2","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12966406/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147369605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Phylogenomic Placement and Morphological Description of a Novel Phagotrophic Euglenid From Hawaii: Hokulea waialensis n. gen. et sp. 夏威夷一种新的吞噬性尤glenid的系统基因组定位和形态描述：Hokulea waialensis n. gen. et sp。

IF 2.6 4区生物学

Journal of Eukaryotic Microbiology Pub Date : 2026-02-26 DOI: 10.1111/jeu.70069

Alfredo Rodriguez Ruiz, Maia V. Palka, Gordon Lax, Dagmar Jirsová, Gianluca Fuggiti, Yu-Ping Poh, Brian S. Leander, Jeremy G. Wideman

{"title":"Phylogenomic Placement and Morphological Description of a Novel Phagotrophic Euglenid From Hawaii: Hokulea waialensis n. gen. et sp.","authors":"Alfredo Rodriguez Ruiz, Maia V. Palka, Gordon Lax, Dagmar Jirsová, Gianluca Fuggiti, Yu-Ping Poh, Brian S. Leander, Jeremy G. Wideman","doi":"10.1111/jeu.70069","DOIUrl":"10.1111/jeu.70069","url":null,"abstract":"<div>\u0000 \u0000 Euglenids are a diverse group of flagellated protists that include phagotrophic, osmotrophic, and phototrophic lineages. Understanding the phylogenetic relationships of phagotrophic euglenids is crucial in understanding euglenid evolution. Yet many relationships within euglenids remain unclear, and further resolution requires extensive sampling, particularly from the deep-branching, paraphyletic group known as “ploeotids”. Improved resolution of evolutionary relationships among ploeotid taxa is necessary to elucidate the origin and diversification of complex ultrastructural traits (e.g., pellicle and feeding apparatus). Here, we isolated, cultivated and characterized a novel freshwater “ploeotid” species named Hokulea waialensis n. gen. et sp. using light and scanning electron microscopy, single-cell sequencing, and phylogenomic analyses. This new species is relatively small (~10 μm long) compared to related euglenids and shares several morphological traits with related species of Alistosa. Both single and multigene phylogenetic reconstructions from single amplified genome data show that Hokulea waialensis n. gen. et sp. is closely related to several environmental small subunit ribosomal DNA (SSU rDNA) sequences, and more broadly to Lentomonas and Decastava.\u0000 </div>","PeriodicalId":15672,"journal":{"name":"Journal of Eukaryotic Microbiology","volume":"73 2","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147306686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Freshwater and Sediment Host Distinct Yet Overlapping Microeukaryotic Communities, With Sediment Communities Less Impacted by Treated Wastewater 淡水和沉积物拥有不同但重叠的微真核群落，沉积物群落受处理过的废水的影响较小。

IF 2.6 4区生物学

Journal of Eukaryotic Microbiology Pub Date : 2026-02-24 DOI: 10.1111/jeu.70070

Radtke Kim, Bludau Dana, Boenigk Jens, Sieber Guido

{"title":"Freshwater and Sediment Host Distinct Yet Overlapping Microeukaryotic Communities, With Sediment Communities Less Impacted by Treated Wastewater","authors":"Radtke Kim, Bludau Dana, Boenigk Jens, Sieber Guido","doi":"10.1111/jeu.70070","DOIUrl":"10.1111/jeu.70070","url":null,"abstract":"Freshwater and sediment environments host diverse microeukaryotic communities that differ in structure and composition, yet exhibit taxonomic overlap. Using 18S V9 rRNA gene sequencing, we compared communities from these habitats in controlled 10-day mesocosm experiments, examining diversity, overlap, and responses to treated wastewater (TWW). Habitat type was the strongest determinant of community composition: sediments displayed higher diversity and greater temporal stability than freshwater communities. While many taxa were shared, highly dominant OTUs were mostly rather habitat-specific, whereas taxa occurring evenly across both habitats were generally rare. Distinct trophic structures further distinguished the habitats, with sediments showing relatively balanced assemblages of phototrophs, mixotrophs, consumers, and parasites, while freshwater communities were dominated by consumers. TWW exposure induced pronounced but transient changes in freshwater communities, including an initial increase in richness from allochthonous taxa, followed by partial convergence toward controls, whereas sediment communities remained largely unaffected. We identified 14 taxa associated with TWW, nine of which have not previously been linked to wastewater, highlighting their potential as bioindicators. Our findings reveal contrasting sensitivity and resilience of freshwater microeukaryotic habitats and emphasize the importance of integrating both water column and sediment communities in monitoring and assessing the ecological impacts of treated wastewater.","PeriodicalId":15672,"journal":{"name":"Journal of Eukaryotic Microbiology","volume":"73 2","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jeu.70070","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147283908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Distinct, Depth-Stratified Communities of Heterotrophic, Mixotrophic, and Parasitic Dinoflagellates and Ciliates in the Subarctic Northeast Pacific Euphotic Zone 异养、混合营养和寄生鞭毛虫和纤毛虫在亚北极东北太平洋磷光带的不同深度分层群落。

IF 2.6 4区生物学

Journal of Eukaryotic Microbiology Pub Date : 2026-02-22 DOI: 10.1111/jeu.70063

Erin L. Jones, Ewelina Rubin, Margaret Rettig, Heather McNair, Susanne Menden-Deuer, Tatiana A. Rynearson

{"title":"Distinct, Depth-Stratified Communities of Heterotrophic, Mixotrophic, and Parasitic Dinoflagellates and Ciliates in the Subarctic Northeast Pacific Euphotic Zone","authors":"Erin L. Jones, Ewelina Rubin, Margaret Rettig, Heather McNair, Susanne Menden-Deuer, Tatiana A. Rynearson","doi":"10.1111/jeu.70063","DOIUrl":"10.1111/jeu.70063","url":null,"abstract":"Dinoflagellates and ciliates are important grazers of primary production in the Northeast Pacific but knowledge of their taxonomic composition and depth-distribution is limited. These organisms also display a variety of heterotrophic feeding modes including heterotrophy, mixotrophy, and parasitism. Here, we analyzed dinoflagellate and ciliate feeding modes and depth-distribution using high-throughput amplicon sequencing of the 18S rRNA V4 gene region on samples collected during the August–September 2018 EXport Processes in the Ocean from RemoTe Sensing (EXPORTS) campaign near ocean station Papa. The parasitic dinoflagellate class Syndiniales comprised 52% of amplicon sequence variants (ASVs), only one of which could be identified to the genus level, highlighting the potential importance of unknown parasitic dinoflagellates to marine food webs. Frequent occurrences of carnivorous ciliates suggested grazer-on-grazer predation, driving carbon recycling through repeated trophic transfers. Over 90% of protist consumer ASVs were more likely to occur in either surface waters or below the mixed layer, highlighting significant vertical structure in the protistan consumer community. The activities of this diverse set of depth-stratified protist consumers likely modulate carbon flow in the upper ocean and may explain currently unattributed export production losses in the Northeast Pacific.","PeriodicalId":15672,"journal":{"name":"Journal of Eukaryotic Microbiology","volume":"73 2","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12926525/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147271215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

A New Species of Colorless Flagellates, Thaumatomonas sibirica sp. n. (Thaumatomonadida, Protista) According to Ultrastructural Data and Molecular Phylogeny 无色鞭毛虫西伯利亚Thaumatomonas sp. n. （Thaumatomonadida, Protista）的超微结构和分子系统发育研究。

IF 2.6 4区生物学

Journal of Eukaryotic Microbiology Pub Date : 2026-02-17 DOI: 10.1111/jeu.70067

Anna Yu. Bessudova, Andrey I. Tanichev, Yekaterina D. Bedoshvili, Darya P. Petrova, Artyom M. Marchenkov, Yelena V. Likhoshway

{"title":"A New Species of Colorless Flagellates, Thaumatomonas sibirica sp. n. (Thaumatomonadida, Protista) According to Ultrastructural Data and Molecular Phylogeny","authors":"Anna Yu. Bessudova, Andrey I. Tanichev, Yekaterina D. Bedoshvili, Darya P. Petrova, Artyom M. Marchenkov, Yelena V. Likhoshway","doi":"10.1111/jeu.70067","DOIUrl":"10.1111/jeu.70067","url":null,"abstract":"<div>\u0000 \u0000 Thaumatomonads are common in soil and fresh water and play an important role in microbial communities. They use silicon for the intracellular synthesis of species-specific silica-scales that cover the surface of their cells. Their diversity is not well studied, and the combination of electron microscopy and molecular phylogeny of marker genes allowed the discovery of a new taxon. In this work, we established the Thaumatomonas strain IW08m from the Irkutsk Reservoir Bay (Eastern Siberia, Russia) into a monoculture and, using various microscopy methods, described its cell structure, including the stage of silica-scale formation. Based on combined data from the fine structure of the scales and phylogenetic analysis of the 18S rRNA gene, we showed congruence of morphological differences and genetic distances in the genus Thaumatomonas and described a new species, Thaumatomonas sibirica n. sp., and thus expanded our understanding of the diversity of thaumatomonads.\u0000 </div>","PeriodicalId":15672,"journal":{"name":"Journal of Eukaryotic Microbiology","volume":"73 2","pages":""},"PeriodicalIF":2.6,"publicationDate":"2026-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146213379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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