Archive

Russian
About the journal   |   Editorial board   |   Archive   |   Publication ethics   |   Submission guidelines   |   Peer review process
Search by Authors, Titles, and Summaries:
 
Year 2023, Volume 57, Issue 1
Year (volume)
2023 (57)
2022 (56)
2021 (55)
2020 (54)
2019 (53)
2018 (52)
2017 (51)
2016 (50)
2015 (49)
2014 (48)
2013 (47)
2012 (46)
2011 (45)
2010 (44)
2009 (43)
2008 (42)
2007 (41)
2006 (40)
2005 (39)
2004 (38)
2003 (37)
2002 (36)
2001 (35)
2000 (34)
1999 (33)
1998 (32)
1997 (31)
1996 (30)
1995 (29)
1994 (28)
1993 (27)
1992 (26)
1991 (25)
1990 (24)
1989 (23)
1988 (22)
1987 (21)
1986 (20)
1985 (19)
1984 (18)
1983 (17)
1982 (16)
1981 (15)
1980 (14)
1979 (13)
1978 (12)
1977 (11)
1976 (10)
1975 (9)
1974 (8)
1973 (7)
1972 (6)
1971 (5)
1970 (4)
1969 (3)
1968 (2)
1967 (1)
Issue 1
Issue 2
Issue 3
Issue 4
Issue 5
Issue 6
 
Ticks and tick-borne infections in Karelia: analysis of ticks brought by citizens to be tested at the Center for Hygiene and Epidemiology in the Republic of Karelia (Petrozavodsk). p. 3-19.
In 2019 and 2021, species composition of the ticks provided by citizens was studied at the Center for Hygiene and Epidemiology in the Republic of Karelia (based in Petrozavodsk). As a result, about 2 500 tick specimens were identified as belonging to the following species of the family Ixodidae: Ixodes persulcatus Schulze, 1930, I. ricinus (Linnaeus, 1758), Dermacentor marginatus (Sulzer, 1776), D. reticulatus Fabricius, 1794, Hyalomma marginatum Koch, 1844, and Rhipicephalus sanguineus (Latreille, 1806). For 2% of the ticks, including all species not typically dwelling in Karelia, the attacks occurred outside of Karelia. For districts of Karelia, two species were identified: I. persulcatus (approx. 95% of all ticks delivered) and I. ricinus. Prevalence of pathogens in ticks as analyzed with the use of a commercial kit «AmpliSense® TBEV, B. burgdorferi sl, A. phagocytphillum, E. chaffeensis/E. muris – FL» based on real-time PCR. Prevalence of the tick-borne encephalitis virus in I. persulcatus was 1.5%. In I. ricinus ticks the virus was absent. The prevalence of the Borrelia burgdorferi s. l. and Ehrlichia spp. complex constituted 32.5 and 3.3% in I. persulcatus versus 16.3 and 0.8% in I. ricinus, respectively. A single occurrence of Anaplasma phagocytophillum was found in I. persulcatus (prevalence – 0.04%). The main determinant of the epidemiological situation in Karelia is the wide distribution and high abundance of I. persulcatus.
in Russian
Ultrastructural features of the body wall of the helminth Heterakis dispar (Schrank, 1790) (Nematoda, Heterakidae). p. 20-37.
The structure of the body wall (cuticle, hypoderm, and muscle layer) of the nematode Heterakis dispar (Schrank, 1790) from the family Heterakidae was studied using light and electron microscopy methods and compared with other species of the same family. The cuticle of the adult nematode H. dispar consists of 8 layers: 1 – an outer membrane layer or epicuticle; 2, 3 – outer and inner cortical layers; 4, 5 – outer and inner homogeneous or middle layers; 6, 7 – outer and inner fibrous 37 or fibrillar layers; 8 – basement membrane. The cortical, homogeneous and fibrillary layers constitute 12.4, 45.3 and 42.3% of the all cuticle, respectively. The homogeneous layer of the cuticle in the lateral ridges in both male and female and near the bursa of the male is several times as thick as other parts of the helminth cuticle. Unlike other species of the family, males of H. dispar possess 3 different forms of cuticular structure in different parts of the body. In the basal layer of the cu ticle, sustaining structures consisting of dense fibrils and microtubules were found, which were not previously noted in other species of the family. It is likely that they provide strength to the body wall of the helminth. In the hypodermis of the nematode, dorsal, ventral, and 2 lateral ridges are traced, the lateral ridges being twice as large as others. Ultrastructural features of the excretory channels and nerve cords located in the hypodermal ridges, were also revealed. The nervous system of the helminth is orthogonal. The ventral nerve cord is wider than the dorsal one. Muscle layer is of the polymyar type, number of muscle cells arranged in groups varies from 17 to 26, depending on the sex and body part of the helminth.
in Russian
Molecular characterization of Echinococcus canadensis (Cestoda, Taeniidae) in wolf from the Kirov region. p. 38-43.
The molecular characteristics of parasitic tapeworms of the genus Echinococcus were studied. Helminths were discovered during the autopsy of a wolf (Canis lupus Linnaeus, 1758), hunted in the Kirov region in October of 2021. Molecular phylogenetic study was performed by analyzing the sequence of a fragment of the mitochondrial cytochrome c oxidase subunit 1 (COI) gene. It was found that the obtained helminths belong to the G10 E. canadensis genotype, which is common in wolves in the northern territories of the Holarctic. Four positions were found for which substitutions charac teristic only for this genotype are identified. A substitution was also found for one of the positions, which is characteristic only for representatives of the G10 genotype found in Russia and Finland.
in Russian
On the organization of the nuclei in the tegument of some Palaeacanthocephala and Archiacanthocephala. p. 44-51.
The giant tegument nuclei of the acanthocephalans of the classes Archiacanthocephala and Palaeacanthocephala are fragmented at the final stage of cystacanthus formation in the intermediate host, but remain connected with each other during later life. It can be assumed that the fragments of each giant tegument nucleus are united with each other forming an independent network that ensures the vital activity of the tegument, the volume of which increases repeatedly during the period of intensive growth of the parasite in the definitive host.
in Russian
Fauna of the endobiotic ciliates from the rumen of the red deer Cervus elaphus Linnaeus, 1758. p. 52-63.
Fauna of endobiotic ciliates of the red deer Cervus elaphus xanthopigus and of the Altai wapiti Cervus elaphus sibiricus in Asia was studied for the first time. In total, 14 species and 5 forms of ciliates belonging to 5 genera of Ophryoscolecidae and Isotrichidae were found. The species composition of endobiotic ciliates in all studied individuals of deer appeared to be rather similar. Most of the samples contained Entodinium wapiti, previously considered specific to the North American wapiti Cervus canadensis. The influence of different factors on the formation of a certain structure of communities of ciliates, endobionts of the rumen of the red deer Cervus elaphus, is discussed.
in Russian
Acaricidal effect of secondary metabolites from symbiotic bacteria Xenorhabdus bovienii and X. nematophila of entomopathogenic nematodes on spider mite Tetranichus urticae (Trombidiformes, Tetranichidae). p. 64-76.
In laboratory, the highest mortality rates of Tetranychus urticae after the use of metabolic products of symbiotic bacteria with a titer of 1 × 107 were observed in Xenorhabdus bovienii at 6–8 days post application (dpa) in the experiment with live and at 8 dpa of autoclaved culture (about 95%). In experiments with live and autoclaved culture with a titer of 1 × 107, the mortality mites at 8 dpa in X. bovienii was almost the same, but in X. nematophila it was slightly higher in autoclaved culture. At 8 dpa, the efficacy of the live and autoclaved metabolic products of Xenorhabdus bovienii and X. nematophila against the spider mite with a titer of 1 × 105 was about 1.4 times lower compared to the culture with a titer of 1 × 107. The relationship between the mortality of spider mites (%) and the exposure time (days) to bacterial metabolism products most reliably reflects by the polynomial dependence with the accuracy of approximation 0.93–1.0. In the greenhouse, the effectiveness of the bacterial metabolic products of X. bovienii against spider mite was highest in experiments with live culture with a titer of 1 × 108. In experiments with live culture of X. bovienii with a titer of 1 x 107 (in vivo) the mortality rate of spider mites on leaves of shrub Dracaena sanderiana at 8 dpa increased from 84% on the ground floor to 90% on the second floor. The overall efficacy of the bacterial metabolic products of X. bovienii (in vivo, titer 1 × 107) against adults, larvae and nymphs of T. urticae on the leaves of perennial marsh grasses (Potenderia cordata, Thalia geniculata and T. dealbata) was about 98–99%.
in Russian
IV International parasitological symposium “Modern problems of general and private parasitology” (St. Petersburg, December 7–9, 2022). p. 77-83.
The fourth regular international parasitological symposium, organized by the Agricultural Ministry of Russian Federation, St. Petersburg state university of veterinary medicine, Zoological Institute of the Russian Academy of Sciences, and Peter the First Academy of sciences and arts has been held in St. Petersburg in early December. More than 100 communications devoted to different aspects of general and private parasitology were presented. The spectrum of participants was rather wide. Together with participants from Russian Federation, parasitologists from Belarus (6 communications), Armenia (4 communications), Azerbaijan (3 communications), and also from Kazakhstan and Rwanda took part in the symposium. Russian parasitologists represented virtually all the regions of Russian Federation (together with Moscow and St. Petersburg, colleagues from Pskov, Yakutsk, Ulan-Ude, Voronezh, Kemerovo, Petrozavodsk, Ekaterinburg, Stavropol, Tumen, Kaliningrad, Rostov, Orenburg, Ryazan, Murmansk, Perm, Izhevsk, Monchegorsk, Kostroma, Rostov-on-Don, Surgut, Vologda, Novosibirsk, and Tomsk talked at the symposium.
in Russian
In Memoriam. Dubinina Elena Vsevolodovna (12.06.1937–27.12.2022). p. 84-85.
Summary is absent.
in Russian
In Memoriam. Mitenev Valentin Kel’sievich (03.05.1929–23.11.2022). p. 86-88.
Summary is absent.
in Russian