A5034942618- Trypanosoma species research and implications
- Protist diversity and phylogeny
- Research on Leishmaniasis Studies
- Insect symbiosis and bacterial influences
- Methane Hydrates and Related Phenomena
- Microbial Community Ecology and Physiology
- Hemiptera Insect Studies
- Insect-Plant Interactions and Control
- Viral Infections and Vectors
- Insects and Parasite Interactions
- Parasitic Infections and Diagnostics
- Marine Ecology and Invasive Species
- Nematode management and characterization studies
- Functional Brain Connectivity Studies
- Research on scale insects
- Insect Resistance and Genetics
- Insect and Pesticide Research
- Leech Biology and Applications
- Marine and coastal ecosystems
- Dementia and Cognitive Impairment Research
- Parasite Biology and Host Interactions
- Phytoplasmas and Hemiptera pathogens
- Marine Invertebrate Physiology and Ecology
- Microtubule and mitosis dynamics
- Biocrusts and Microbial Ecology
Zoological Institute
2016-2025
The University of Texas Southwestern Medical Center
2025
Southwestern Medical Center
2025
St Petersburg University
2011-2025
Institute for Analytical Instrumentation
2025
University College London
2016-2024
All-Russian Scientific Research Institute for the Use of Machinery and Petroleum Products in Agriculture
2023
National University Zaporizhzhia Polytechnic
2021-2022
Washington University in St. Louis
2017
University of Ostrava
2017
Significance Largely overlooked, the viruses of protists have started to attract more attention. Several family Totiviridae are currently implicated in increased pathogenicity parasitic protozoa such as Leishmania vertebrate hosts. We conducted a broad survey RNA within trypanosomatids, one iconic groups protists. These revealed several previously unidentified viral taxa including designated “ Leishbunyaviridae ” and highly divergent virus termed “Leptomonas pyrrhocoris ostravirus 1.” Our...
Abstract Background Protists of the family Trypanosomatidae (phylum Euglenozoa) have gained notoriety as parasites affecting humans, domestic animals, and agricultural plants. However, true extent group's diversity spreads far beyond medically veterinary relevant species. We address several knowledge gaps in trypanosomatid research by undertaking sequencing, assembly, analysis genomes from previously overlooked representatives this protistan group. Results assembled for twenty-one species,...
Trypanosoma theileri species complex includes parasites of Bovidae (cattle, sheep, goat, etc.) and Cervidae (deer) transmitted mainly by Tabanidae (horse flies deerflies) keds (Hippoboscidae). While morphological discrimination is challenging, two big clades, TthI TthII, each containing isolated from bovids cervids, have been identified phylogenetically. To date, the development in vector has studied detail only for ked-transmitted sheep parasite T. melophagium (TthII), while fate...
This article describes the key achievements over past 10 years in microsecond pulsed glow discharge mass spectrometry applied to analysis of solids and gaseous mixtures. The solid-state allows studying solid materials with different conductivities, including direct simultaneous quantitation light elements high ionization energy (N, O, F, Cl, etc.), heavy (U, Th, isotope analysis. Dielectric is considered details special emphasis on sample preparation approaches. Particular attention focused...
ABSTRACT Trypanosomatids are among the most extensively studied protists due to their parasitic interactions with insects, vertebrates, and plants. Recently, Blastocrithidia nonstop was found depart from canonical genetic code, all three stop codons reassigned encode amino acids (UAR for glutamate UGA tryptophan), UAA having dual meaning also as a termination signal (glutamate stop). To explore features linked this phenomenon, we analyzed genomes of four Obscuromonas species, latter...
The family Trypanosomatidae encompasses parasitic flagellates, some of which cause serious vector-transmitted diseases humans and domestic animals. However, insect-restricted parasites represent the ancestral most diverse group within family. They display a range unusual features their study can provide insights into biology human pathogens. Here we describe Vickermania, new genus fly midgut-dwelling that bear two flagella in contrast to other trypanosomatids, are unambiguously...
Blastocrithidia papi is a unique trypanosomatid in that its life cycle synchronized with of host, and includes an obligate stage development Malpighian tubules (MTs). This occurs firebugs, which exited the winter diapause. In short period, preceding mating overwintered insects, flagellates penetrate MTs multiply attached to epithelial surface their flagella, start forming cyst-like amastigotes (CLAs) large agglomerates. By moment oviposition, number CLAs are already available rectum. They...
Abstract Background Trypanosomatids are parasitic flagellates well known because of some representatives infecting humans, domestic animals, and cultural plants. Many trypanosomatid species bear RNA viruses, which, in the case human pathogens Leishmania spp., influence course disease. One close relatives leishmaniae, Leptomonas pyrrhocoris , has been previously shown to harbor viruses groups not documented other trypanosomatids. At same time, this a worldwide distribution high prevalence...
Here we described a new trypanosomatid species, Phytomonas lipae, parasitizing the dock bug Coreus marginatus based on axenic culture and in vivo material. Using light electron microscopy characterized development of this flagellate intestine, hemolymph salivary glands its insect host. The intestinal promastigotes lipae do not divide occur only anterior part midgut. From there they pass into hemolymph, increasing size, then to glands, where actively proliferate without attachment host's...
Here we describe the new trypanosomatid, Phytomonas borealis sp.n., from midgut of spiked shieldbugs, Picromerus bidens (Linnaeus), collected in two locations, Novgorod and Pskov Oblasts Russia.The phylogenetic analyses, based on 18S rRNA gene, demonstrated that this flagellate is a sister species to secondary monoxenous nordicus Frolov et Malysheva, 1993, which was concurrently documented same host Oblast.Unlike P. nordicus, can complete its development (including exit haemolymph...
Nearly all aerobic organisms are equipped with catalases, powerful enzymes scavenging hydrogen peroxide and facilitating defense against harmful reactive oxygen species. In trypanosomatids, this enzyme was not present in the common ancestor, yet it had been independently acquired by different lineages of monoxenous trypanosomatids from bacteria at least three times. This observation posited an obvious question: why catalase so "sought after" if many trypanosomatid groups do just fine without...
Here we characterized the development of trypanosomatid Blastocrithidia raabei in dock bug Coreus marginatus using light and electron microscopy. This parasite has been previously reported to occur host hemolymph, which is rather typical for dixenous trypanosomatids transmitted a plant or vertebrate with insect's saliva. In addition, C. an unusual organization intestine, makes it refractory microbial infections: two impassable segments isolate anterior midgut portion responsible digestion...