A5010552889- Marine Ecology and Invasive Species
- Neurobiology and Insect Physiology Research
- Myxozoan Parasites in Aquatic Species
- Neuroendocrine regulation and behavior
- Marine Biology and Ecology Research
- Olfactory and Sensory Function Studies
- Cephalopods and Marine Biology
- Parasite Biology and Host Interactions
- Aquatic Invertebrate Ecology and Behavior
- Marine Sponges and Natural Products
- Genomic variations and chromosomal abnormalities
- Marine Biology and Environmental Chemistry
- Physiological and biochemical adaptations
- Polyamine Metabolism and Applications
- Marine Bivalve and Aquaculture Studies
- Echinoderm biology and ecology
- Chromosomal and Genetic Variations
- Marine and fisheries research
- Marine Invertebrate Physiology and Ecology
- Planarian Biology and Electrostimulation
- Nicotinic Acetylcholine Receptors Study
- Prenatal Screening and Diagnostics
- Marine and coastal plant biology
Zoological Institute
2015-2024
St Petersburg University
2013-2014
Russian Academy of Sciences
2014
Abstract Quantifying interconnected performances of the modules in a colonial organism (feeding, sexual reproduction, rejuvenation, dormancy) into an integral picture enables studying functional dynamics and resource allocation at different levels – from module to population. Testing this approach on common boreal-Arctic bryozoan Cribrilina annulata White Sea, we describe its life history, comparing colonies two algal substrates with contrasting size lifespan. Colonies living kelps were much...
The spionid worm Pygospio elegans is a convenient model for regeneration studies due to its accessibility, high tolerance, and ease of maintenance in laboratory culture. This article presents the findings regarding neuroregeneration structure nervous system based on antibody labeling serotonin FMRFamide. We propose main stages central neurogenesis during regeneration: single nerve fibers, loop structure, neurons brain segmental ganglia. Nerve fibers receptor cells peripheral can be traced...
Octopamine is a biogenic amine specific for invertebrates distributed in all groups from Cnidaria to Echinodermata. Our study aimed investigate the octopamine-positive elements nervous system of spionid worm Pygospio elegans. Immunohistochemistry was used detect central and peripheral systems. While exhibited weak staining, showed specifically octopamine-like palps, peristomium, body segments. The detected were compared with other neurotransmitters P. elegans system. results contribute data...
The prey defensive strategy of the scale-worms can be divided to 3 different strategies.First one is symbiosis, second defense autotomize scales, and third curl into ring protect body by thick scales with big sharp tubercles.The aim this paper present morphological, ultrastructural, immunohistochemical studies scale Lepidonotus squamatus.Elytrum L. squamatus composed from a dorsal ventral single-layered epithelium covered cuticle.The middle compartment crossed ramifications nervous...
In recent two decades, studies of the annelid nervous systems were revolutionized by modern cell labeling techniques and state-of-the-art microscopy techniques. However, there are still huge gaps in our knowledge on organization functioning their system. Most have focused distribution serotonin FMRFamide, while data about many other basic neurotransmitters such as histamine (HA) gamma-aminobutyric acid (GABA) scarce.Using immunohistochemistry confocal we studied system a spionid Pygospio...
Density distribution of the common infaunal bivalves, Macoma balthica and Cerastoderma edule , was studied along Murman Coast Barents Sea during 2002–2010. In both species, abundance generally higher in West contrast to East Murman. Highest density reaching 1535 ind. m −2 observed Kola Inlet. less abundant; its rarely exceeded 10 all but one site, where 282 registered. Reconstruction across European geographic range revealed that it does not match an ‘abundant-centre’ pattern, having...
Recently many data on distribution of common neuromediators in different bryozoan species were published.Based the three freshwater bryozoans, we compare our results with those from other studies attempt to understand possible role each neuromediator (serotonin, FMRFamide, catecholamine) nervous system Bryozoa.Serotonin appears be responsible for feeding behavior and digestion, FMRFamide mainly participate muscles innervation catecholaminergic cells could mechanoreceptors.
Robertsonian translocations (RTs) are very common balanced structural chromosome rearrangements in humans. Due to alterations the segregation pattern and formation of unbalanced gametes embryos, carriers RTs have a significant risk reproductive failure. For over 30 years, fluorescent situ hybridization (FISH) has been used for preimplantation genetic testing chromosomal rearrangement (PGT-SR) RTs. The data obtained by performing FISH PGT-SR can be useful analyzing patterns embryos. We...
Abstract Background In recent two decades, studies of the annelid nervous systems were revolutionized by modern cell labeling techniques and state-of-the-art microscopy techniques. However, there are still huge white fields in our knowledge on system organization functioning. Though most focused distribution now routine serotonin FMRFamide, data about many basic neurotransmitters such as histamine (HA) gamma-aminobutyric acid (GABA) scarce. Results Using immunohistochemistry confocal we...
Colonies of the freshwater bryozoan Pectinatella magnifica (Leidy, 1851) were found in north-west Russia for first time.As colonies have been observed Vuoksi river connecting Saimaa and Ladoga lakes, most likely this is a result downstream migration from Finland.Details general morphology P. distribution sensory structures on lophophore colony surface studied using scanning electron microscopy.Three types recorded.Two rows presumably immobile cilia latero-frontal surfaces tentacles, type...