A5069430502- Protist diversity and phylogeny
- Microbial Community Ecology and Physiology
- Geology and Paleoclimatology Research
- Environmental DNA in Biodiversity Studies
- Paleontology and Stratigraphy of Fossils
- Marine Invertebrate Physiology and Ecology
- Marine Toxins and Detection Methods
- Ecology and Vegetation Dynamics Studies
- Legionella and Acanthamoeba research
- Slime Mold and Myxomycetes Research
- Genomics and Phylogenetic Studies
- Legume Nitrogen Fixing Symbiosis
- Peatlands and Wetlands Ecology
- Marine Biology and Ecology Research
- Geomagnetism and Paleomagnetism Studies
- Species Distribution and Climate Change
- Marine and coastal plant biology
- Myxozoan Parasites in Aquatic Species
- Parasitic Infections and Diagnostics
Mississippi State University
2023-2025
University of Neuchâtel
2016-2024
Real Jardín Botánico
2018-2020
Universidade de São Paulo
2016
Protists dominate eukaryotic diversity and play key functional roles in all ecosystems, particularly by catalyzing carbon nutrient cycling. To date, however, a comparative analysis of their taxonomic that compares the major ecosystems on Earth (soil, freshwater marine systems) is missing. Here, we present comparison protist based standardized high throughput 18S rRNA gene sequencing soil, environmental DNA. Soil communities were more similar to each other than communities, with virtually no...
Recent studies show that soil eukaryotic diversity is immense and dominated by micro-organisms. However, it unclear to what extent the processes shape distribution of in plants animals also apply Major diversification events multicellular organisms have often been attributed long-term climatic geological processes, but impact such on protist has received much less attention as their believed be largely cosmopolitan. Here, we quantified phylogeographical patterns Hyalosphenia papilio, a large...
Abstract Aim Trends in spatial patterns of diversity macroscopic organisms can be well predicted from correlative models, using topo‐climatic variables for plants and animals allowing inference over large scales. By contrast, soil microorganisms is generally considered as mostly driven by edaphic and, therefore, difficult to extrapolate on a scale based predictive models. Here, we compared the power versus predicting various protist groups at regional scale. Location Swiss western Alps. Taxa...
Protists, the micro-eukaryotes that are neither plants, animals nor fungi build up greatest part of eukaryotic diversity on Earth. Yet, their evolutionary histories and patterns still mostly ignored, complexity overlooked. Protists often assumed to keep stable morphologies for long periods time (morphological stasis). In this work, we test paradigm taking Arcellinida testate amoebae as a model. We taxon-rich phylogeny based two mitochondrial (COI NADH) one nuclear (SSU) gene, reconstruct...
Eukaryotic microbial diversity is known to be extensive but remains largely undescribed and uncharted. While much of this unknown composed inconspicuous flagellates parasites, larger morphologically distinct protists are regularly discovered, most notably from poorly studied regions. Here we report a new flagship species hyalospheniid (Amoebozoa; Arcellinida; Hyalospheniformes) testate amoeba New Zealand an unusual story overlooked description under preoccupied name subsequent oversight for...
Heterotrophic protists are vital in Earth's ecosystems, influencing carbon and nutrient cycles occupying key positions food webs as microbial predators. Fossils molecular data suggest the emergence of predatory microeukaryotes transition to a eukaryote-rich marine environment by 800 million years ago (Ma). Neoproterozoic vase-shaped microfossils (VSMs) linked Arcellinida testate amoebae represent oldest evidence heterotrophic microeukaryotes. This study explores phylogenetic relationship...
Three major groups of primarily amoeboid taxa are present across Amoebozoa: Discosea, Evosea, and Tubulinea. While each these were thought to have morphologically unique traits members, the morphologic boundaries between group recently blurred. For example, it is demonstrated that several in display monopodial limax amoebae, a characteristic most often associated with Here we describe novel discosean amoeba isolated from freshwater pond, Janelia veilia n. gen. sp. Its cells variable...
Abstract Since the first environmental DNA surveys, entire groups of sequences called “environmental clades” did not have any cultured representative. LKM74 is an amoebozoan clade affiliated to Dermamoebidae, whose presence pervasively reported in soil and freshwater. We obtained isolate from that we assigned by molecular phylogeny, close related freshwater clones. described Mycamoeba gemmipara based on observations made with light‐ transmission electron microscopy. It extremely small amoeba...
Abstract Aim The diversity and distribution of soil microorganisms their potential for long‐distance dispersal (LDD) are poorly documented, making the threats posed by climate change difficult to assess. If do not disperse globally, regional endemism may develop extinction occur due environmental changes. Here, we addressed this question using testate amoeba Apodera vas , a morphologically conspicuous model microorganism in microbial biogeography, commonly found peatlands forests mainly...
Abstract Assessing the degree to which climate explains spatial distributions of different taxonomic and functional groups is essential for anticipating effects change on ecosystems. Most effort so far has focused above‐ground organisms, offer only a partial view response biodiversity environmental gradients. Here including both above‐ below‐ground we quantified topoclimatic control occurrence patterns >1,500 taxa phylotypes along c. 3,000 m elevation gradient, by fitting species...
Heterotrophic microbial eukaryotes play a pivotal role in aquatic and terrestrial ecosystems, contributing to carbon nutrient cycles. These microorganisms, capable of phagocytosis, act as predators bacterial communities other microeukaryotes, occupying significant position complex food webs. The timing the origin diversification heterotrophic microeukaryotes remain unclear. Fossil evidence molecular data suggest that emergence predatory transition eukaryote-dominant marine environment...
Abstract Aim General trends in spatial patterns of macroscopic organisms diversity can be reasonably well predicted from correlative models, using for instance topo-climatic variables plants and animals allowing inference over large scales. By contrast, soil microorganisms is generally considered as mostly driven by edaphic and, therefore, difficult to extrapolate on a scale based predictive models. Here, we compared the power vs. predicting various protist groups at regional scale. Location...
Most eukaryotic microbial biodiversity is undescribed, and most species might be morphologically indistinguishable. Notable exceptions are so-called flagship which highly conspicuous can therefore used to address biogeographical questions. Here we describe Hyalosphenia papilio subsp. paynei, an arcellinid testate amoeba (Amoebozoa; Arcellinida; Hyalospheniidae) from wet hollows in two Sphagnum peatlands, one Wales Ireland. Phylogenetic analysis based on Cytochrome Coxidase subunit I (COI)...
The purpose of this application, under Article 23.9.3 the Code, is to conserve specific name Nebela militarisPenard, 1890, a junior subjective synonym bursellaTaranek, 1881 – referred as bursella Vejdovský in literature. Due absence any type or reference specimen and due confusing original description, doubts about taxonomic status N. persist. A review literature revealed that names militaris originally same species, with later being applied erroneously another species. According Principle...
We describe here a flexible protocol for eDNA metabarcoding with Oxford Nanopore's MinIon MK1C platform from sampling to sequencing. The first section summarizes some key steps of and sample preservation both aquatic terrestrial environments. second one describes the DNA extraction DNeasy PowerSoil Pro Kit Qiagen different types samples (i.e., soil, liquid dead plant materials). Our amplification bead purification protocols are characterized in third section. Finally, library prep Native...
We describe here a flexible protocol for eDNA metabarcoding with Oxford Nanopore's MinIon MK1C platform from sampling to sequencing. The first section summarizes some key steps of and sample preservation both aquatic terrestrial environments. second one describes the DNA extraction DNeasy PowerSoil Pro Kit Qiagen different types samples (i.e., soil, liquid dead plant materials). Our amplification bead purification protocols are characterized in third section. Finally, library prep Native...