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  • Article
  • Open Access
2 Citations
3,143 Views
8 Pages

ORPER: A Workflow for Constrained SSU rRNA Phylogenies

  • Luc Cornet,
  • Anne-Catherine Ahn,
  • Annick Wilmotte and
  • Denis Baurain

29 October 2021

The continuous increase in sequenced genomes in public repositories makes the choice of interesting bacterial strains for future sequencing projects ever more complicated, as it is difficult to estimate the redundancy between these strains and the al...

  • Article
  • Open Access
9 Citations
9,728 Views
16 Pages

Use of SSU/MSU Satellite Observations to Validate Upper Atmospheric Temperature Trends in CMIP5 Simulations

  • Lilong Zhao,
  • Jianjun Xu,
  • Alfred M. Powell,
  • Zhihong Jiang and
  • Donghai Wang

24 December 2015

The tropospheric and stratospheric temperature trends and uncertainties in the fifth Coupled Model Intercomparison Project (CMIP5) model simulations in the period of 1979–2005 have been compared with satellite observations. The satellite data include...

  • Article
  • Open Access
8 Citations
9,350 Views
15 Pages

Full-Length SSU rRNA Gene Sequencing Allows Species-Level Detection of Bacteria, Archaea, and Yeasts Present in Milk

  • Isabel Abellan-Schneyder,
  • Annemarie Siebert,
  • Katharina Hofmann,
  • Mareike Wenning and
  • Klaus Neuhaus

Full-length SSU rRNA gene sequencing allows species-level identification of the microorganisms present in milk samples. Here, we used bulk-tank raw milk samples of two German dairies and detected, using this method, a great diversity of bacteria, arc...

  • Article
  • Open Access
11 Citations
2,917 Views
16 Pages

Ssu72 Regulates Fungal Development, Aflatoxin Biosynthesis and Pathogenicity in Aspergillus flavus

  • Guang Yang,
  • Xiaohong Cao,
  • Ling Qin,
  • Lijuan Yan,
  • Rongsheng Hong,
  • Jun Yuan and
  • Shihua Wang

13 November 2020

The RNA polymerase II (Pol II) transcription process is coordinated by the reversible phosphorylation of its largest subunit-carboxy terminal domain (CTD). Ssu72 is identified as a CTD phosphatase with specificity for phosphorylation of Ser5 and Ser7...

  • Article
  • Open Access
1,588 Views
20 Pages

Population Dynamics of Plasmodium vivax in Mexico Determined by CSP, Pvs25, and SSU 18S rRNA S-Type Polymorphism Analyses

  • Lilia González-Cerón,
  • Delfino de Jesús Gómez-Pérez,
  • Frida Santillán-Valenzuela,
  • Marbella Ovilla-Muñoz,
  • Carmen Guzmán-Bracho,
  • Angélica Pech-May,
  • Gerardo R. Amores,
  • Alberto Montoya-Pérez and
  • Cuauhtémoc Villarreal-Treviño

In Mexico, Plasmodium vivax transmission has been confined to the northwestern and southern regions since 2000. Parasites from five malaria foci were analyzed using three genetic markers. The circumsporozoite gene was examined by PCR-RFLP and sequenc...

  • Review
  • Open Access
8 Citations
7,298 Views
17 Pages

Ssu72 Dual-Specific Protein Phosphatase: From Gene to Diseases

  • Soeun Hwang,
  • Min-Hee Kim and
  • Chang-Woo Lee

More than 70% of eukaryotic proteins are regulated by phosphorylation. However, the mechanism of dephosphorylation that counteracts phosphorylation is less studied. Phosphatases are classified into 104 distinct groups based on substrate-specific feat...

  • Article
  • Open Access
31 Citations
4,604 Views
15 Pages

While nuclear small subunit ribosomal DNA (nSSU rDNA) is the most commonly-used gene marker in studying phylogeny, ecology, abundance, and biodiversity of microbial eukaryotes, mitochondrial small subunit ribosomal DNA (mtSSU rDNA) provides an altern...

  • Article
  • Open Access
17 Citations
5,027 Views
25 Pages

Metabarcoding and high-throughput sequencing methods have greatly improved our understanding of protist diversity. Although the V4 region of small subunit ribosomal DNA (SSU-V4 rDNA) is the most widely used marker in DNA metabarcoding of eukaryotic m...

  • Article
  • Open Access
16 Citations
4,444 Views
12 Pages

Comparison of Three Real-Time PCR Assays Targeting the SSU rRNA Gene, the COWP Gene and the DnaJ-Like Protein Gene for the Diagnosis of Cryptosporidium spp. in Stool Samples

  • Felix Weinreich,
  • Andreas Hahn,
  • Kirsten Alexandra Eberhardt,
  • Torsten Feldt,
  • Fred Stephen Sarfo,
  • Veronica Di Cristanziano,
  • Hagen Frickmann and
  • Ulrike Loderstädt

2 September 2021

As qualified microscopy of enteric parasitoses as defined by high diagnostic accuracy is difficult to maintain in non-endemic areas due to scarce opportunities for practicing with positive sample materials, molecular diagnostic options provide less i...

  • Article
  • Open Access
16 Citations
3,206 Views
15 Pages

A Small Subunit of Geranylgeranyl Diphosphate Synthase Functions as an Active Regulator of Carotenoid Synthesis in Nicotiana tabacum

  • Chen Dong,
  • Mei Zhang,
  • Shanshan Song,
  • Fang Wei,
  • Lili Qin,
  • Puqing Fan,
  • Yongchun Shi,
  • Xiaoran Wang and
  • Ran Wang

As one of the most imperative antioxidants in higher plants, carotenoids serve as accessory pigments to harvest light for photosynthesis and photoprotectors for plants to adapt to high light stress. Here, we report a small subunit (SSU) of geranylger...

  • Article
  • Open Access
8 Citations
2,730 Views
14 Pages

18 September 2021

The symbiosis and beneficial effects of arbuscular mycorrhizal fungi (AM fungi) on plants have been widely reported; however, the effects might be unascertained in tomato industry production with coconut coir due to the nutrition solution supply, or...

  • Article
  • Open Access
1 Citations
381 Views
33 Pages

In this study, we address the criteria for the identification of species and subspecific categories (ribosomal lineages) within the genus Entamoeba using an evolutionary species concept and an integrative taxonomic framework, in which genetic evidenc...

  • Article
  • Open Access
16 Citations
5,027 Views
25 Pages

Migration of Small Ribosomal Subunits on the 5′ Untranslated Regions of Capped Messenger RNA

  • Nikolay E. Shirokikh,
  • Yulia S. Dutikova,
  • Maria A. Staroverova,
  • Ross D. Hannan and
  • Thomas Preiss

10 September 2019

Several control mechanisms of eukaryotic gene expression target the initiation step of mRNA translation. The canonical translation initiation pathway begins with cap-dependent attachment of the small ribosomal subunit (SSU) to the messenger ribonucle...

  • Article
  • Open Access
7 Citations
3,105 Views
18 Pages

3 February 2022

Three Dysteria species, D. crassipes Claparède & Lachmann, 1859; D. brasiliensis Faria et al., 1922; and D. paracrassipes n. sp., were collected from subtropical coastal waters of the East China Sea, near Ningbo, China. The three species w...

  • Article
  • Open Access
1 Citations
3,144 Views
21 Pages

2 August 2024

The majority of myxosporean species (Cnidaria: Myxozoa) of the genera Myxobolus (35 species), Henneguya (8 species), and Myxidium (9 species) from freshwater or brackish fish in Japan were recorded more than 30 years ago (accumulatively 81.1% [43/53]...

  • Feature Paper
  • Article
  • Open Access
14 Citations
5,688 Views
20 Pages

Two New Benthic Diatoms of the Genus Achnanthidium (Bacillariophyceae) from the Hangang River, Korea

  • Minzi Miao,
  • Zhun Li,
  • Eun-A Hwang,
  • Ha-Kyung Kim,
  • Hyuk Lee and
  • Baik-Ho Kim

21 July 2020

Two new benthic freshwater species belonging to the genus Achnanthidium were found in Korea. Achnanthidium ovale sp. nov. and A. cavitatum sp. nov. are described as new species based on light and scanning electron microscopy observations and molecula...

  • Article
  • Open Access
2 Citations
1,742 Views
15 Pages

Oogamochlamys kurilensis sp. nov. (Chlorophyta, Volvocales) from the Soils of Iturup Island (Sakhalin Region, Russia)

  • Vyacheslav Yu. Nikulin,
  • Arthur Yu. Nikulin,
  • Andrey A. Gontcharov,
  • Veronika B. Bagmet and
  • Shamil R. Abdullin

22 September 2023

A strain of oogamous biflagellate green alga was isolated during a study on soil algal diversity in the Russian Far East (Sakhalin Region, Iturup Island) and examined using an integrative approach. Phylogenetic analyses, based on the SSU rDNA gene, r...

  • Article
  • Open Access
2,277 Views
16 Pages

13 March 2025

Ciliates of the genus Frontonia have been extensively studied to resolve their phylogenetic and evolutionary history, but challenges remain. This study used molecular analyses of SSU rRNA genes, phylogenetic tree reconstruction, molecular dating, and...

  • Article
  • Open Access
8 Citations
6,973 Views
14 Pages

26 March 2016

Secondary Users (SUs) are allowed to use the temporarily unused licensed spectrum without disturbing Primary Users (PUs) in Cognitive Radio Ad Hoc Networks (CRAHNs). Existing architectures for CRAHNs impose energy-consuming Cognitive Radios (CRs) on...

  • Article
  • Open Access
1 Citations
1,137 Views
20 Pages

Evolutionary Engineering and Molecular Characterization of a Sulfur Dioxide-Stress-Resistant Saccharomyces cerevisiae Strain

  • Halil İbrahim Kısakesen,
  • Zeynep Başak Canbay,
  • Aziz Kaan Korkmaz,
  • Alican Topaloğlu,
  • Ömer Esen,
  • Mevlüt Arslan,
  • Can Holyavkin and
  • Zeynep Petek Çakar

Sulfiting agents are common preservatives in the food and beverage industry to inhibit spoilage microorganisms. Sulfite produced by the dissolution of sulfur dioxide (SO2) in water is used as a microbial inhibitor and antioxidant during winemaking. T...

  • Feature Paper
  • Article
  • Open Access
820 Views
12 Pages

19 July 2025

In order to investigate the infection status of Cryptosporidium in O. curzoniae and B. grunniens in Zoige County, Sichuan Province, fecal samples from B. grunniens and gastrointestinal contents from captured O. curzoniae were collected between March...

  • Feature Paper
  • Review
  • Open Access
12 Citations
4,501 Views
19 Pages

29 September 2020

The small nucleolar RNA snR30 (U17 in humans) plays a unique role during ribosome synthesis. Unlike most members of the H/ACA class of guide RNAs, the small nucleolar ribonucleoprotein (snoRNP) complex assembled on snR30 does not direct pseudouridyla...

  • Article
  • Open Access
3 Citations
2,868 Views
15 Pages

Development of Nested Polymerase Chain Reaction with Novel Specific Primers for Detection of Tritrichomonas muris Infection in Laboratory Mice

  • Hongbo Zhang,
  • Nan Zhang,
  • Jianhua Li,
  • Panpan Zhao,
  • Xin Li,
  • Xiaocen Wang,
  • Xu Zhang,
  • Bao Yuan,
  • Fei Gao and
  • Xichen Zhang
  • + 1 author

11 October 2023

A variety of rodent ceca are parasitized by Tritrichomonas muris (T. muris), a flagellated protozoan. To date, there are no ideal methods for the detection of T. muris infections in laboratory mice; thus, new molecular methodologies for its specific...

  • Article
  • Open Access
11 Citations
3,036 Views
14 Pages

Nuclear ribosomal and mitochondrial genes have been utilized individually or in combination to identify known species and discriminate closely related species. However, compared with metazoans, genetic diversity within the ciliate order Euplotida is...

  • Article
  • Open Access
10 Citations
3,686 Views
12 Pages

First Report of Anuran Trypanosoma DNA in Flat-Tailed House Geckos (Reptilia: Gekkonidae) Collected from Southern Thailand: No Evidence as a Reservoir for Human Trypanosomatids

  • Prapimporn Toontong,
  • Sakone Sunantaraporn,
  • Sonthaya Tiawsirisup,
  • Theerakamol Pengsakul,
  • Rungfar Boonserm,
  • Atchara Phumee,
  • Padet Siriyasatien and
  • Kanok Preativatanyou

14 February 2022

Over the years, cases of autochthonous leishmaniasis have been dramatically increasing in Thailand. Recently, several publications have claimed certain species of the phlebotomine sand flies and biting midges potentially serve as natural vectors of L...

  • Article
  • Open Access
231 Views
17 Pages

Soil ciliates are an important component of the soil micro-food web, playing key roles in organic matter decomposition and nutrient cycling. However, research on the species diversity and taxonomy of this group in the temperate forest soils of China...

  • Article
  • Open Access
74 Citations
5,091 Views
11 Pages

Identification and Molecular Characterization of Four New Blastocystis Subtypes Designated ST35-ST38

  • Jenny G. Maloney,
  • Aleksey Molokin,
  • Raimundo Seguí,
  • Pablo Maravilla,
  • Fernando Martínez-Hernández,
  • Guiehdani Villalobos,
  • Anastasios D. Tsaousis,
  • Eleni Gentekaki,
  • Carla Muñoz-Antolí and
  • Mónica Santín
  • + 11 authors

Three recent studies of Blastocystis epidemiology in mammalian hosts identified four novel sequences that appeared to share B. lapemi as the most similar sequence. However, full-length ssu rRNA gene sequences were not available to confirm the validit...

  • Communication
  • Open Access
5 Citations
2,185 Views
9 Pages

Ulosarcina terrestrica gen. nov., sp. nov., a New Ulvophycean Sarcinoid Alga from the Russian Far East

  • Andrey A. Gontcharov,
  • Arthur Yu. Nikulin,
  • Vyacheslav Yu. Nikulin,
  • Rezeda Z. Allaguvatova,
  • Veronika B. Bagmet and
  • Shamil R. Abdullin

25 November 2022

Many filamentous and sarcinoid terrestrial or freshwater green algae that were previously assigned to the Chlorophyceae are members of lineages belonging to the class Ulvophyceae. One of these lineages is the Planophila-clade (Ulotrichales). Some gen...

  • Article
  • Open Access
10 Citations
3,585 Views
11 Pages

New Species of Chloroidium (Trebouxiophyceae, Chlorophyta) from East Asia

  • Andrey A. Gontcharov,
  • Arthur Yu. Nikulin,
  • Vyacheslav Yu. Nikulin,
  • Veronika B. Bagmet,
  • Rezeda Z. Allaguvatova and
  • Shamil R. Abdullin

23 November 2021

Chlorella-like green algae that reproduce only asexually by immotile autospores or motile zoospores are the most typical inhabitants of non-aquatic environments. They have a simple morphology that hampers their differentiation, but algae of such habi...

  • Article
  • Open Access
6 Citations
4,213 Views
13 Pages

19 November 2022

A new species, Cryptomonas tropica sp. nov., is described from Cat Tien National Park (Vietnam) based on morphological and molecular data. Strains of the new species were isolated from soil, which is an unusual environment for photosynthetic cryptomo...

  • Article
  • Open Access
2 Citations
4,924 Views
13 Pages

8 September 2021

Heterolobose amoebae are important members of marine, freshwater, and soil microbial communities, but their diversity remains under-explored. We studied the diversity of Vahlkampfiidae to improve our understanding of heterolobosean relationships and...

  • Article
  • Open Access
10 Citations
5,527 Views
12 Pages

In this study we identified single nucleotide polymorphism (SNP) and sequence characteristic amplification region (SCAR) markers for specific identification of antler-shaped Ganoderma lucidum strains. When the partial mitochondrial SSU rDNA gene sequ...

  • Article
  • Open Access
2,187 Views
13 Pages

28 August 2024

The monotypic genus Prasiolopsis has been known for a long time, but is often overlooked because of difficulties in identification and the morphological variability between uniseriate filaments and cell packages forming pseudoparenchymatic thalli dep...

  • Article
  • Open Access
25 Citations
11,815 Views
17 Pages

22 May 2013

Although hypersaline environments pose challenges to life because of the low water content (water activity), many such habitats appear to support eukaryotic microbes. This contribution presents brief reviews of our current knowledge on eukaryotes of...

  • Article
  • Open Access
285 Views
13 Pages

7 January 2026

A newly discovered myxosporean parasite was described from the gallbladder of Nemipterus virgatus Houttuyn, 1782 collected from the East China Sea. Mature myxospores are crescent-shaped with shell valves that taper gradually toward rounded ends. Each...

  • Article
  • Open Access
30 Citations
4,974 Views
16 Pages

We report an Illumina high-throughput sequencing protocol of eukaryotic microbes in the world’s deepest marine blue hole, Sansha Yongle Blue Hole, Xisha, South China Sea. The variable V9 region of small subunit (SSU) rDNA, was sequenced using t...

  • Article
  • Open Access
20 Citations
5,362 Views
15 Pages

6 July 2019

Since most studies about community structures of microorganisms in Antarctic terrestrial lakes using molecular biological tools are mainly focused on bacteria, limited information is available about archaeal and eukaryotic microbial diversity. In thi...

  • Article
  • Open Access
917 Views
15 Pages

22 August 2025

Free-living amoebae (FLAs) are widely present in the environment and may be pathogenic for animals and humans. Studies on the prevalence of FLAs in European soils are few in number. This study aimed to molecularly identify the species and genotypes o...

  • Article
  • Open Access
12 Citations
7,535 Views
26 Pages

Most marine coccoid and sarcinoid green algal species have traditionally been placed within genera dominated by species from freshwater or soil habitats. For example, the genera Chlorocystis and Halochlorococcum contain exclusively marine species; ho...

  • Article
  • Open Access
13 Citations
3,129 Views
12 Pages

Prevalence and Subtype Distribution of Blastocystis Infection in Patients with Diabetes Mellitus in Thailand

  • Noppon Popruk,
  • Satakamol Prasongwattana,
  • Aongart Mahittikorn,
  • Attakorn Palasuwan,
  • Supaluk Popruk and
  • Duangdao Palasuwan

Diabetes mellitus (DM) is a major global public health problem with an increasing prevalence. DM increases the risk of infections caused by bacteria, fungi, viruses, and parasites. We examined the prevalence, subtypes, and risk factors of Blastocysti...

  • Article
  • Open Access
1 Citations
746 Views
24 Pages

Patagonian Fjords/Channels vs. Open Ocean: Phytoplankton Molecular Diversity on Southern Chilean Coast

  • Gonzalo Fuenzalida,
  • Roland Sanchez,
  • Andrea X. Silva,
  • Alvaro Figueroa,
  • Osvaldo Artal,
  • Maria Fernanda Torres,
  • Alejandro E. Montecinos,
  • Milko Jorquera,
  • Nicole Trefault and
  • Leonardo Guzman
  • + 1 author

Environmental filtering studies have revealed immense oceanic microbial diversity, yet the Southeast Pacific remains comparatively undersampled. We characterize the molecular diversity of phytoplankton across two biogeographic domains with contrastin...

  • Article
  • Open Access
4 Citations
2,776 Views
15 Pages

The genus Pleuronema Dujardin, 1841, with nearly 40 morphospecies, is one of the largest genera in the well-known subclass Scuticociliatia. In the present study, two Pleuronema species were collected from subtropical coastal waters of the East China...

  • Article
  • Open Access
14 Citations
4,952 Views
20 Pages

Marine protists are essential for globally critical biological processes, including the biogeochemical cycles of matter and energy. However, compared with their prokaryotic counterpart, it remains largely unclear how environmental factors determine t...

  • Article
  • Open Access
6 Citations
1,505 Views
15 Pages

11 September 2024

Two new species of free-living marine nematodes, Metachromadora parobscura sp. nov. and Molgolaimus longicaudatus sp. nov., from mangrove wetlands of Beihai, Guangxi province in China, are described. Metachromadora parobscura sp. nov. is characterize...

  • Article
  • Open Access
1 Citations
2,719 Views
19 Pages

Traditionally, the order Ulotrichales comprised green algae of an unbranched, uniseriate, filamentous morphology. However, since the establishment of ultrastructural features, the circumscription of this order has dramatically changed. Some genera an...

  • Article
  • Open Access
21 Citations
8,025 Views
23 Pages

Testing a Microarray to Detect and Monitor Toxic Microalgae in Arcachon Bay in France

  • Jessica U. Kegel,
  • Yolanda Del Amo,
  • Laurence Costes and
  • Linda K. Medlin

Harmful algal blooms (HABs) occur worldwide, causing health problems and economic damages to fisheries and tourism. Monitoring agencies are therefore essential, yet monitoring is based only on time-consuming light microscopy, a level at which a corre...

  • Article
  • Open Access
4 Citations
2,582 Views
52 Pages

Integrated Taxonomic Approaches to Gastrointestinal and Urinary Capillariid Nematodes from Wild and Domestic Mammals

  • Masae Tamaru,
  • Seiho Sakaguchi,
  • Yasuhiro Souzu,
  • Koichi Murata,
  • Muchammad Yunus,
  • Imron Rosyadi and
  • Hiroshi Sato

Fine nematodes of the family Capillariidae parasitize various organs and tissues in fish, amphibians, reptiles, avians, and mammals. Currently classified into more than 20 genera, these nematodes are primarily distinguished based on the caudal struct...

  • Article
  • Open Access
1 Citations
2,710 Views
9 Pages

Spatial Pattern of Genetic Diversity in the Blood Fluke Aporocotyle argentinensis (Digenea, Aporocotylidae) from South American Hakes (Pisces: Merluccidae)

  • Marcelo E. Oliva,
  • Leyla Cárdenas,
  • Isabel M. Valdivia,
  • Paulina Bruning,
  • Luis Figueroa-Fabrega and
  • Rubén Escribano

19 September 2022

Distribution of blood fluke Aporocotyle spp. parasitizing Merluccius species from the coasts of South America (Peru, Chile and Argentina) constitutes an excellent opportunity to evaluate the geographical amplitude in which a parasite can exploit the...

  • Article
  • Open Access
4 Citations
1,994 Views
10 Pages

21 November 2023

Microsporidia are natural pathogens of arthropods and have been used as biological control against insect pests. In the United States, efforts to control the invasive Red Imported Fire Ant, Solenopsis invicta, and Black Imported Fire Ant, Solenopsis ...

  • Article
  • Open Access
221 Views
9 Pages

28 January 2026

The green sunfish, Lepomis cyanellus, is a common centrarchid that has been previously reported to harbor several myxosporeans. In May 2022, six L. cyanellus were collected from the Caddo River, Montgomery County, Arkansas, USA, and had their gills,...

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