A5088388571- Protist diversity and phylogeny
- Microbial Community Ecology and Physiology
- Geology and Paleoclimatology Research
- Myxozoan Parasites in Aquatic Species
- Microbial infections and disease research
- Marine Biology and Ecology Research
- Aquaculture disease management and microbiota
- Paleontology and Stratigraphy of Fossils
- Mycorrhizal Fungi and Plant Interactions
- Marine and coastal plant biology
- Aquatic Ecosystems and Phytoplankton Dynamics
- Botany and Plant Ecology Studies
- Marine Ecology and Invasive Species
- Fungal Biology and Applications
- Botanical Research and Applications
- Lichen and fungal ecology
- Phytochemistry and Biological Activities
- Environmental DNA in Biodiversity Studies
- Species Distribution and Climate Change
- Forest Ecology and Biodiversity Studies
- Food Chemistry and Fat Analysis
- Marine and coastal ecosystems
- Marine Invertebrate Physiology and Ecology
- Algal biology and biofuel production
- Geomagnetism and Paleomagnetism Studies
Czech Academy of Sciences, Biology Centre
2018-2025
Institute of Parasitology
2017-2025
University of Modena and Reggio Emilia
2023-2024
University of Palermo
2024
Czech Academy of Sciences
2017-2020
Universidade de São Paulo
2015-2019
University of Neuchâtel
2011-2018
University of Haifa
2008
Amoebozoa is the eukaryotic supergroup sister to Obazoa, lineage that contains animals and Fungi, as well their protistan relatives, breviate apusomonad flagellates. extraordinarily diverse, encompassing important model organisms significant pathogens. Although amoebozoans are integral global nutrient cycles present in nearly all environments, they remain vastly understudied. We a robust phylogeny of based on broad representative set taxa phylogenomic framework (325 genes). By sampling 61...
Abstract Species diversity in most protistan groups has been underestimated. Many morpho‐species are fact complexes that require detailed morphometric studies to be discriminated. However, which traits can used for species descriptions remains many cases unclear. The testate amoeba genus Quadrulella produces self‐secreted, siliceous plates with a very characteristic square shape—such were assumed synapomorphic of the genus. Here we demonstrate symmetrica (the common Holarctic species) is not...
A new species, Porosia paracarinata , is described from mountain forest litter, Bijodaira, Japan. This the second species in genus ; until now, was monospecific with type bigibbosa . P. sp. nov. distinguished by presence of a wide lateral keel. Test ultrastructure documented using light and scanning electron microscopy. Morphometric analyses showed that this only slightly variable. The main morphological variability due to size keel, which can vary very (13.13 μm) narrow (3.75 μm)....
This review provides a synthesis of current knowledge on the morphological and functional traits testate amoebae, polyphyletic group protists commonly used as proxies past hydrological changes in paleoecological investigations from peatland, lake sediment soil archives. A trait-based approach to understanding amoebae ecology paleoecology has gained popularity recent years, with research showing that characteristics provide complementary information environmental inferences based...
Abstract The community composition of any group organisms should theoretically be determined by a combination assembly processes including resource partitioning, competition, environmental filtering, and phylogenetic legacy. Environmental DNA studies have revealed huge diversity protists in all environments, raising questions about the ecological significance such degree to which they obey same rules as macroscopic organisms. fast‐growing cultivable protist species on hypotheses are usually...
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...
Parasitism as a life strategy has independently evolved multiple times within the eukaryotic tree of life. Each lineage developed mechanisms to invade hosts, exploit resources, and ensure replication, but our knowledge survival in many parasitic taxa remain extremely limited. One such group is Myxozoa, which are obligate, dixenous cnidarians. Evidence suggests that myxozoans from free-living ancestors endoparasites around 600 million years ago likely one first metazoan parasites on Earth....
Untangling the relationships between morphology and phylogeny is key to building a reliable taxonomy, but especially challenging for protists, where existence of cryptic or pseudocryptic species makes finding relevant discriminant traits difficult. Here we use Hyalosphenia papilio (a testate amoeba) as model investigate contribution phenotypic plasticity in its morphology. We study response H. (shape pores number) environmental variables (i) manipulative experiment with controlled conditions...
RNA interference (RNAi) is an effective approach to suppress gene expression and monitor regulation. Despite its wide application, use limited in certain taxonomic groups, including cnidarians. Myxozoans are a unique group of cnidarian parasites that diverged from their free-living ancestors about 600 million years ago, with several species causing acute disease farmed wild fish populations. In this pioneering study we successfully applied RNAi blood stages the myxozoan Sphaerospora molnari,...
Abstract Background Parasites employ proteases to evade host immune systems, feed and replicate are often the target of anti-parasite strategies disrupt these interactions. Myxozoans obligate cnidarian parasites, alternating between invertebrate fish hosts. Their genes highly divergent from other metazoans, available genomic transcriptomic datasets limited. Some myxozoans important aquaculture pathogens such as Sphaerospora molnari replicating in blood farmed carp before reaching gills for...
Myxozoans are a diverse group of microscopic cnidarian parasites and some representatives associated with important diseases in fish, both marine freshwater aquaculture systems. Research on myxozoans has been largely hampered by the inability to isolate myxozoan from their host tissues. In this study, we developed optimized method proliferative stages different size cellularity fish blood, using DEAE-cellulose ion exchange chromatography. We several parameters obtained 99-100% parasite...
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 Myxozoans (Cnidaria: Myxozoa) are an extremely diversified group of endoparasites some which causative agents serious diseases in fish. New methods involving gene expression studies have emerged over the last years to better understand and control myxozoan diseases. Quantitative RT-PCR is most extensively used approach for studies. However, accuracy results depends on normalization data reference genes. We studied eight commonly genes, adenosylhomocysteinase (AHC1), beta actin...
Fine flavor cocoa is a unique category of that produces almonds with high aromatic potential and several sensory benefits make it different from the basic or ordinary cocoas. Ecuador world's leader in production export fine cocoa, responsible for 63% total due to commercialization Arriba Nacional variety, known possess an intense aroma world market. Besides its organoleptic specificity, this variety represents source important bioactive compounds associated both health properties. This study...