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1.
Zootaxa ; 4974(3): 537564, 2021 May 21.
Article in English | MEDLINE | ID: mdl-34186583

ABSTRACT

The family Macronyssidae (Acari: Mesostigmata) comprises mostly obligate blood-sucking ectoparasites of bats (Mammalia: Chiroptera) and some other animals, such as small mammals, reptiles and birds. Here, we document and curate previously known data, and, based on our extensive survey, provide this article of bat-associated macronyssid mites of the Russian Federation. We record a total of 24 mite species belonging to 4 genera (Ichoronyssus, Macronyssus, Steatonyssus, and Cryptonyssus). Twenty-seven new host-parasite associations are reported. In addition, were provide data on five major Russian regions, for which bat-associated mite records were lacking.


Subject(s)
Chiroptera/parasitology , Mites/classification , Animals , Host-Parasite Interactions , Russia
2.
Russ J Biol Invasions ; 11(4): 348-362, 2020.
Article in English | MEDLINE | ID: mdl-33362937

ABSTRACT

Here we report the results of our own survey and literary published data on the ectoparasite fauna and pathogens of the alien bat species, the Kuhl's pipistrelle Pipistrellus kuhlii (Kuhl, 1817) (Chiroptera: Vespertilionidae). This bat is a host of 36 species of parasitic mites, ticks and insects (including accidental findings) and 13 species of pathogens (protozoa, bacteria, viruses). The flea Ischnopsyllus variabilis is re-corded on this host for the first time. We have found that outside of the host ancestral range, the core of the bat parasite fauna is significantly different due to the loss of host species-specific ectoparasites. Particularly, in Russia, only 6 species of parasitic arthropods have been recorded for Kuhl's pipistrelle and all of them are host genus-specific. At the same time, the features of ecology and occasional finds of extrinsic parasites allow to suggest that P. kuhlii has wide contacts with animals which are the reservoirs of zoonotic infec-tions, that in combination with the fact of isolation of several pathogens from this species (including two coronaviruses) points to a possible medical importance of Kuhl's pipistrelle.

3.
Transbound Emerg Dis ; 65(2): 303-308, 2018 Apr.
Article in English | MEDLINE | ID: mdl-29181887

ABSTRACT

Specimens archived in wet collections represent valuable material for scientific research. Here, we show that bat fly (Diptera, Nycteribiidae) samples contain DNA of Pseudogymnoascus destructans, a fungus pathogenic to bats. Using dual-probe quantitative PCR, we detected P. destructans DNA on bat flies collected in the Samara, Sverdlovsk and Irkutsk regions of Russia between 2005 and 2017. Fungal load was significantly lower on bat flies from wet collections than on freshly collected mites in the Czech Republic. The bat pathogen was present in the Samara region (European part of Russia) in 2005, that is, a year before recognition of white-nose syndrome in North America. As Samara and Irkutsk regions were identified as new positive locations of P. destructans, our data expand the known geographic distribution of P. destructans. We conclude that ethanol-stored ectoparasites can be used to identify the presence of pathogens in historic bat populations and understudied geographical regions.


Subject(s)
Arthropod Vectors/microbiology , Ascomycota/isolation & purification , Chiroptera/parasitology , Diptera/microbiology , Ectoparasitic Infestations/epidemiology , Mycoses/epidemiology , Animals , Ascomycota/genetics , Ascomycota/pathogenicity , Czech Republic/epidemiology , DNA, Fungal/genetics , Geography , Parasite Load , Real-Time Polymerase Chain Reaction , Russia/epidemiology , Tissue Preservation
4.
Biofizika ; 61(2): 310-5, 2016.
Article in Russian | MEDLINE | ID: mdl-27192833

ABSTRACT

A non-linear dependence of the inhibition of E. coli cells is found when irradiated simultaneously with the blue and red regions of the spectrum at a power density of 100 mW/cm2. Such dependence is explained by the assumption of a cascade two-photon absorption of light by DNA molecules with an intermediate resonance at cellular chromophores, causing excitation and subsequent DNA damage similar to damage when exposed to UV radiation.


Subject(s)
DNA Damage/radiation effects , Escherichia coli/radiation effects , Microbial Viability/radiation effects , Light , Ultraviolet Rays
5.
Parazitologiia ; 50(5): 404-8, 2016.
Article in Russian | MEDLINE | ID: mdl-29211431

ABSTRACT

The article reports new findings of rare and poorly known mite species of the genus Spinturnix von Heyden, 1826 (Gamasina: Spinturnicidae) parasitizing bats of the genera Myotis and Barbastella in Russia and Tadjikistan.


Subject(s)
Chiroptera/parasitology , Mites/classification , Mites/physiology , Animals , Russia , Tajikistan
6.
Izv Akad Nauk Ser Biol ; (3): 310-5, 2015.
Article in Russian | MEDLINE | ID: mdl-26349237

ABSTRACT

Forty-six chiropteran specimens from seven species have been captured on the territory of Southern Siberia. From them, 676 ectoparasites of 16 species (gamasid mites and insects) were collected. The bat fly Basilia mongolensis mongolensis Theodor, 1966 was found in Russia for the first time. The gamasid mites Spinturnix maedai Uchikawa et Wada, 1979 and Macronyssus hosonoi Uchikawa, 1979 have not previously been registered in Siberia. Several species have been recorded on new hosts. Three species of gamasid mites out of the genus Macronyssus are, probably, new to science. New data on the ecology of low-abundant and understudied bat species belonging to the Siberian-Far Eastern complex have been provided.


Subject(s)
Chiroptera/parasitology , Diptera/pathogenicity , Host Specificity , Mites/pathogenicity , Animals , Phylogeography , Siberia
7.
Parazitologiia ; 49(2): 119-27, 2015.
Article in Russian | MEDLINE | ID: mdl-26314158

ABSTRACT

The data on new findings of ectoparasites (mites and insects) of bats (Chiroptera: Vespertilionidae) in the Western Sayan and Tuva are represented. The bat fly Basilia mongolensis mongolensis Theodor, 1966 was discovered in the territory of Russia for the first time. Gamasid mite Spinturnix bregetovae Stanyukovich, 1995 is new for the region. New hosts were described for some ectoparasites.


Subject(s)
Acari/anatomy & histology , Bedbugs/anatomy & histology , Chiroptera/parasitology , Diptera/anatomy & histology , Ectoparasitic Infestations/veterinary , Acari/classification , Animals , Bedbugs/classification , Diptera/classification , Ectoparasitic Infestations/parasitology , Female , Male , Siberia
8.
J Parasitol ; 101(3): 314-9, 2015 Jun.
Article in English | MEDLINE | ID: mdl-25674831

ABSTRACT

Three new gamasid mite species belonging to the genus Macronyssus Kolenati, 1858 (Acari: Macronyssidae), namely, Macronyssus sibiricus n. sp., Macronyssus stanyukovichi n. sp., and Macronyssus tigirecus n. sp., are described (females only; males, protonymphs, and larvae remain unknown). All species are known from Western Siberia and belong to the Siberian-Far Eastern bat ectoparasite fauna complex. The parasite hosts are the eastern water bat Myotis petax Hollister, 1912, and Hilgendorf's tube-nosed bat Murina hilgendorfi Peters, 1880 (Chiroptera: Vespertilionidae). An identification key for females of the genus Macronyssus Kolenati, 1858, in the boreal Palearctic region is presented.


Subject(s)
Chiroptera/parasitology , Mite Infestations/veterinary , Mites/classification , Animals , Female , Mite Infestations/epidemiology , Mite Infestations/parasitology , Mites/anatomy & histology , Siberia/epidemiology
9.
Parazitologiia ; 48(4): 315-24, 2014.
Article in Russian | MEDLINE | ID: mdl-25702504

ABSTRACT

New findings of ectoparasites from the eastern water bat Myotis petax Hollister, 1912, belonging to the Siberian-Russian Far Eastern complex and earlier attributed as a subspecies of the Daubenton's bat Myotis daubentonii s. lato, is given. Fourteen species of bloodsucking arthropods feed on M. petax; these species include 4, 3, and 7 species of gamasid mites, fleas, and bloodsucking flies, respectively.


Subject(s)
Chiroptera/parasitology , Mites , Muscidae , Siphonaptera , Animals , Mites/classification , Mites/physiology , Muscidae/classification , Muscidae/physiology , Siphonaptera/classification , Siphonaptera/physiology
10.
Izv Akad Nauk Ser Biol ; (1): 108-10, 2013.
Article in Russian | MEDLINE | ID: mdl-23662469

ABSTRACT

The possibility of identification of the sibling species of Chiroptera by the example of Myotis daubentonii Kuhl, 1817 and Myotis petax Hollister, 1912 by their host-specific ectoparasitic fauna is discussed. Their habitat limits are defined.


Subject(s)
Chiroptera , Diptera , Ectoparasitic Infestations/genetics , Animals , Chiroptera/classification , Chiroptera/genetics , Chiroptera/parasitology , Diptera/classification , Diptera/genetics , Ecosystem , Ectoparasitic Infestations/classification , Host-Parasite Interactions/genetics , Phylogeny , Species Specificity
11.
Parazitologiia ; 47(4): 333-43, 2013.
Article in Russian | MEDLINE | ID: mdl-25434198

ABSTRACT

The fauna of ectoparasites of the particoloured bat (Vespertilio murinus Linnaeus, 1758), the most common synanthropic bat in the Urals, is examined. The core of the ectoparasite fauna consists of temporary ectoparasites--gamasid mites belonging to the genus Steatonyssus. New findings of the poorly known species Steatonyvssus superans are described.


Subject(s)
Chiroptera/parasitology , Mites/classification , Mites/physiology , Animals
12.
Appl Environ Microbiol ; 64(7): 2723-5, 1998 Jul.
Article in English | MEDLINE | ID: mdl-9647857

ABSTRACT

The Bacillus laterosporus strains 921 and 615 were shown to have toxicity for larvae of the mosquitoes Aedes aegypti, Anopheles stephensi, and Culex pipiens. The larvicidal activity of B. laterosporus was associated with spores and crystalline inclusions. Purified B. laterosporus 615 crystals were highly toxic for Aedes aegypti and Anopheles stephensi.


Subject(s)
Bacillus/growth & development , Culicidae/microbiology , Pest Control, Biological , Aedes/microbiology , Animals , Anopheles/microbiology , Culex/microbiology
13.
Res Microbiol ; 147(5): 343-50, 1996 Jun.
Article in English | MEDLINE | ID: mdl-8763620

ABSTRACT

Bacillus laterosporus is a spore-forming bacterium characterized by its ability to produce a canoe-shaped lamellar parasporal inclusion, adjacent to the spore. In some B. laterosporus strains crystalline inclusions of various shapes and sizes, which are released separately from spores during the lysis of the sporangium, were also produced. The morphological characteristics of two crystal-forming strains, B. laterosporus BL 16-92 and LAT 006, were investigated.


Subject(s)
Bacillus/chemistry , Bacteriophages/chemistry , Spores, Bacterial/chemistry , Tail/ultrastructure , Animals , Bacillus/ultrastructure , Bacillus/virology , Bacteriophages/ultrastructure , In Vitro Techniques , Microscopy, Electron , Spores, Bacterial/ultrastructure
14.
Biofizika ; 37(2): 388-90, 1992.
Article in Russian | MEDLINE | ID: mdl-7578332

ABSTRACT

By affecting man's acupuncture points by microcurrents the release of biologically active substances into the blood is stimulated which in its turn must be accompanied by a change in microelements composition. Concentrations of a number of microelements of the blood are determined by different biophysical methods before and after electropuncture. Concentration of elements with alternating valency decreases, while that of alkaline ones somewhat increases in the same blood samples of a healthy man. Thus the electropuncture stimulation regulates homeostasis of microelements in the blood.


Subject(s)
Acupuncture Points , Biological Factors/blood , Biophysical Phenomena , Biophysics , Electric Stimulation , Homeostasis , Humans , Male
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